/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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.4.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:10:39,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:10:39,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:10:39,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:10:39,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:10:39,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:10:39,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:10:39,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:10:39,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:10:39,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:10:39,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:10:39,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:10:39,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:10:39,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:10:39,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:10:39,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:10:39,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:10:39,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:10:39,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:10:39,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:10:39,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:10:39,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:10:39,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:10:39,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:10:39,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:10:39,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:10:39,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:10:39,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:10:39,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:10:39,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:10:39,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:10:39,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:10:39,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:10:39,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:10:39,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:10:39,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:10:39,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:10:39,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:10:39,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:10:39,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:10:39,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:10:39,159 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 [2020-10-14 08:10:39,203 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:10:39,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:10:39,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:10:39,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:10:39,206 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:10:39,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:10:39,206 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:10:39,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:10:39,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:10:39,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:10:39,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:10:39,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:10:39,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:10:39,209 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:10:39,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:10:39,209 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:10:39,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:10:39,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:10:39,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:10:39,210 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:10:39,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:10:39,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:10:39,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:10:39,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:10:39,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:10:39,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:10:39,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:10:39,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:10:39,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:10:39,212 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:10:39,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:10:39,540 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:10:39,554 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:10:39,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:10:39,556 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:10:39,557 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c [2020-10-14 08:10:39,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0893ec336/baaec9b3107a4bbbbf8436a32587d137/FLAG555b1fe6b [2020-10-14 08:10:40,180 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:10:40,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c [2020-10-14 08:10:40,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0893ec336/baaec9b3107a4bbbbf8436a32587d137/FLAG555b1fe6b [2020-10-14 08:10:40,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0893ec336/baaec9b3107a4bbbbf8436a32587d137 [2020-10-14 08:10:40,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:10:40,419 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:10:40,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:10:40,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:10:40,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:10:40,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:10:40" (1/1) ... [2020-10-14 08:10:40,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f94811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:10:40, skipping insertion in model container [2020-10-14 08:10:40,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:10:40" (1/1) ... [2020-10-14 08:10:40,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:10:40,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:10:40,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:10:40,939 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:10:41,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:10:41,058 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:10:41,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:10:41 WrapperNode [2020-10-14 08:10:41,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:10:41,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:10:41,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:10:41,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:10:41,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:10:41" (1/1) ... [2020-10-14 08:10:41,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:10:41" (1/1) ... [2020-10-14 08:10:41,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:10:41" (1/1) ... [2020-10-14 08:10:41,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:10:41" (1/1) ... [2020-10-14 08:10:41,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:10:41" (1/1) ... [2020-10-14 08:10:41,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:10:41" (1/1) ... [2020-10-14 08:10:41,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:10:41" (1/1) ... [2020-10-14 08:10:41,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:10:41,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:10:41,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:10:41,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:10:41,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:10:41" (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 [2020-10-14 08:10:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:10:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:10:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:10:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:10:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:10:41,258 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:10:41,258 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 08:10:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:10:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:10:41,260 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:10:41,260 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:10:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:10:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:10:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:10:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:10:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:10:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:10:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:10:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:10:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:10:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:10:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:10:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:10:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:10:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:10:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:10:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:10:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:10:42,649 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:10:42,650 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:10:42,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:10:42 BoogieIcfgContainer [2020-10-14 08:10:42,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:10:42,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:10:42,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:10:42,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:10:42,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:10:40" (1/3) ... [2020-10-14 08:10:42,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5612e7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:10:42, skipping insertion in model container [2020-10-14 08:10:42,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:10:41" (2/3) ... [2020-10-14 08:10:42,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5612e7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:10:42, skipping insertion in model container [2020-10-14 08:10:42,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:10:42" (3/3) ... [2020-10-14 08:10:42,666 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.BOUNDED-8.pals.c [2020-10-14 08:10:42,677 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:10:42,686 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:10:42,701 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:10:42,730 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:10:42,730 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:10:42,730 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:10:42,730 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:10:42,731 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:10:42,731 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:10:42,731 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:10:42,731 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:10:42,759 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states. [2020-10-14 08:10:42,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:10:42,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:42,779 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] [2020-10-14 08:10:42,780 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:42,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:42,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1771600538, now seen corresponding path program 1 times [2020-10-14 08:10:42,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:42,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394472171] [2020-10-14 08:10:42,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:43,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:43,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:43,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:10:43,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:43,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686 [2020-10-14 08:10:43,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:43,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 08:10:43,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:43,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:10:44,384 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:44,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:44,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 08:10:44,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:44,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:44,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:44,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 08:10:44,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 08:10:44,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:44,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:44,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:44,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:44,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:10:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:44,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:10:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:44,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:10:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:44,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:10:44,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:44,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:44,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:44,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 08:10:44,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:10:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:44,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:10:44,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:44,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:44,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:10:44,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 08:10:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:44,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:10:44,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:44,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:44,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:44,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:44,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:10:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:44,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:10:44,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:44,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:10:44,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:10:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:44,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:44,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:44,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:44,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:44,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:44,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:44,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:44,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:44,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:44,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:44,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:44,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394472171] [2020-10-14 08:10:44,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:44,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:10:44,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899416908] [2020-10-14 08:10:44,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:10:44,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:44,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:10:44,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:10:44,923 INFO L87 Difference]: Start difference. First operand 358 states. Second operand 7 states. [2020-10-14 08:10:45,861 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:46,272 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:46,764 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:47,289 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:10:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:47,915 INFO L93 Difference]: Finished difference Result 547 states and 921 transitions. [2020-10-14 08:10:47,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:10:47,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-14 08:10:47,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:47,959 INFO L225 Difference]: With dead ends: 547 [2020-10-14 08:10:47,959 INFO L226 Difference]: Without dead ends: 389 [2020-10-14 08:10:47,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:10:47,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-14 08:10:48,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 353. [2020-10-14 08:10:48,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-10-14 08:10:48,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 608 transitions. [2020-10-14 08:10:48,084 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 608 transitions. Word has length 108 [2020-10-14 08:10:48,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:48,085 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 608 transitions. [2020-10-14 08:10:48,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:10:48,085 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 608 transitions. [2020-10-14 08:10:48,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:10:48,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:48,098 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] [2020-10-14 08:10:48,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:10:48,099 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:48,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:48,099 INFO L82 PathProgramCache]: Analyzing trace with hash -878114200, now seen corresponding path program 1 times [2020-10-14 08:10:48,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:48,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81823142] [2020-10-14 08:10:48,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:48,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:49,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:49,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:10:49,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:49,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1635 [2020-10-14 08:10:49,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:49,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:49,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:10:49,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 08:10:49,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:10:49,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:50,266 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:10:50,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:50,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:10:50,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:50,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:50,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 08:10:50,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-14 08:10:50,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:50,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 08:10:50,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:50,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:10:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:50,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:10:50,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:50,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:10:50,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:50,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:10:50,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:10:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:50,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:10:50,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:50,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:50,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:10:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:50,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:10:50,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:50,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:50,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:50,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:10:50,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 08:10:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:50,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:10:50,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:50,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:50,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:51,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:10:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:51,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:51,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:51,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:51,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:51,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:51,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:51,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:10:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:51,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:51,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:10:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:51,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:51,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:51,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:51,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:51,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:51,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:51,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:51,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:51,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:51,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:51,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:51,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81823142] [2020-10-14 08:10:51,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:51,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:10:51,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356649366] [2020-10-14 08:10:51,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:10:51,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:51,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:10:51,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:10:51,070 INFO L87 Difference]: Start difference. First operand 353 states and 608 transitions. Second operand 13 states. [2020-10-14 08:10:53,472 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-14 08:10:53,859 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-14 08:10:54,414 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-14 08:10:54,770 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-14 08:10:58,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:58,052 INFO L93 Difference]: Finished difference Result 550 states and 925 transitions. [2020-10-14 08:10:58,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:10:58,053 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-14 08:10:58,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:58,061 INFO L225 Difference]: With dead ends: 550 [2020-10-14 08:10:58,061 INFO L226 Difference]: Without dead ends: 399 [2020-10-14 08:10:58,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:10:58,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-14 08:10:58,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 353. [2020-10-14 08:10:58,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-10-14 08:10:58,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 562 transitions. [2020-10-14 08:10:58,115 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 562 transitions. Word has length 108 [2020-10-14 08:10:58,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:58,116 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 562 transitions. [2020-10-14 08:10:58,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:10:58,116 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 562 transitions. [2020-10-14 08:10:58,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-14 08:10:58,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:58,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:10:58,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:10:58,119 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:58,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:58,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1443712870, now seen corresponding path program 1 times [2020-10-14 08:10:58,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:58,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1172495807] [2020-10-14 08:10:58,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:58,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:58,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:58,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:59,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:03,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:03,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-14 08:11:03,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:11:03,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:11:03,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:03,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:11:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 08:11:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 08:11:03,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:03,614 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:03,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:03,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:03,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:03,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:03,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:03,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:11:03,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:03,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:03,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:03,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:03,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:03,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:03,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:03,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-14 08:11:03,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:03,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 08:11:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:03,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:03,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:03,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:03,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:03,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:03,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:11:03,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:03,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:03,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:03,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:03,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:03,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:03,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:03,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:03,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:03,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:03,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:03,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:11:03,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:03,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:03,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:04,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:04,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:04,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:04,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:04,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:04,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:11:04,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:04,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:04,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:04,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:04,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:04,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:04,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:04,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:04,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:04,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:04,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:04,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:11:04,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:04,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:04,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:04,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:04,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:04,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:04,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:11:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:04,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:04,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:04,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:04,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:04,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:11:04,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:04,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:11:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:11:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:11:04,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:04,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 08:11:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:04,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:04,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:04,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:04,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:04,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:04,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:04,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:04,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:04,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:04,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:04,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:04,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:11:04,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1172495807] [2020-10-14 08:11:04,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:04,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:04,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627391808] [2020-10-14 08:11:04,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:04,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:04,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:04,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:04,242 INFO L87 Difference]: Start difference. First operand 353 states and 562 transitions. Second operand 10 states. [2020-10-14 08:11:04,587 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:11:06,341 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:11:06,701 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:11:07,123 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:11:07,848 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:08,513 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:09,598 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:11:09,729 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:09,924 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:11:09,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:09,963 INFO L93 Difference]: Finished difference Result 710 states and 1139 transitions. [2020-10-14 08:11:09,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:11:09,963 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-14 08:11:09,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:09,971 INFO L225 Difference]: With dead ends: 710 [2020-10-14 08:11:09,971 INFO L226 Difference]: Without dead ends: 565 [2020-10-14 08:11:09,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:11:09,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-14 08:11:10,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 488. [2020-10-14 08:11:10,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-14 08:11:10,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 779 transitions. [2020-10-14 08:11:10,031 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 779 transitions. Word has length 153 [2020-10-14 08:11:10,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:10,032 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 779 transitions. [2020-10-14 08:11:10,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:11:10,032 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 779 transitions. [2020-10-14 08:11:10,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-14 08:11:10,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:10,038 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] [2020-10-14 08:11:10,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:11:10,038 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:10,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:10,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1961090059, now seen corresponding path program 1 times [2020-10-14 08:11:10,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:10,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504590866] [2020-10-14 08:11:10,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:10,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:10,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:10,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:11,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:11,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:12,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:15,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:15,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 08:11:15,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:11:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 08:11:15,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:15,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:11:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 08:11:15,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:15,611 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:15,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:15,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:15,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:15,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:15,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:11:15,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:15,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:15,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:15,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:15,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:15,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:15,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:15,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:15,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 08:11:15,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:15,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 08:11:15,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:15,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:15,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:15,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:15,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:15,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:15,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:11:15,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:15,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:15,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:16,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:16,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:16,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:16,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:16,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:16,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:11:16,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:16,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:16,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:16,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:16,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:16,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:16,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:16,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:16,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:11:16,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:16,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:16,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:16,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:16,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:16,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:16,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:16,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:16,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:11:16,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:16,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:16,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:16,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:16,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:16,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:16,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:11:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:16,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:16,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:16,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:11:16,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:16,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:11:16,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:16,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:11:16,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:16,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 08:11:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:16,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:16,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:16,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:16,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:16,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:16,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:16,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:16,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:11:16,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504590866] [2020-10-14 08:11:16,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:16,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:16,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710301228] [2020-10-14 08:11:16,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:16,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:16,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:16,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:16,312 INFO L87 Difference]: Start difference. First operand 488 states and 779 transitions. Second operand 10 states. [2020-10-14 08:11:16,713 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:11:17,074 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-14 08:11:17,595 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:11:18,330 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 261 [2020-10-14 08:11:22,586 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:11:22,856 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:23,440 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:23,686 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:24,595 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:24,902 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:25,329 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:25,883 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:26,217 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:27,110 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:28,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:28,262 INFO L93 Difference]: Finished difference Result 2022 states and 3259 transitions. [2020-10-14 08:11:28,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:11:28,263 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-14 08:11:28,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:28,278 INFO L225 Difference]: With dead ends: 2022 [2020-10-14 08:11:28,279 INFO L226 Difference]: Without dead ends: 1571 [2020-10-14 08:11:28,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:11:28,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2020-10-14 08:11:28,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1365. [2020-10-14 08:11:28,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1365 states. [2020-10-14 08:11:28,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 2177 transitions. [2020-10-14 08:11:28,447 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 2177 transitions. Word has length 156 [2020-10-14 08:11:28,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:28,449 INFO L479 AbstractCegarLoop]: Abstraction has 1365 states and 2177 transitions. [2020-10-14 08:11:28,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:11:28,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 2177 transitions. [2020-10-14 08:11:28,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 08:11:28,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:28,454 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] [2020-10-14 08:11:28,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:11:28,454 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:28,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:28,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1547862592, now seen corresponding path program 1 times [2020-10-14 08:11:28,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:28,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221664156] [2020-10-14 08:11:28,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:28,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:28,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:29,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:30,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:33,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:33,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 08:11:33,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:11:33,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 08:11:33,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:33,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:33,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:11:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 08:11:33,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:33,940 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:33,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:33,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:33,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:33,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:33,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:33,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:11:33,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:33,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:33,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:33,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:34,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:34,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:34,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:34,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:34,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 08:11:34,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:34,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:34,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:34,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:34,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:11:34,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:34,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:34,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:34,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:34,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:34,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:34,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:11:34,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:34,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:34,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:34,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:34,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:34,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:34,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:34,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:34,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:34,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:34,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:34,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:11:34,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:34,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:34,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:34,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:34,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:34,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:34,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:34,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:34,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:11:34,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:34,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:34,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:34,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:34,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:34,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:34,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:34,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:34,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:34,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:34,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:34,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:11:34,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:34,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:34,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:34,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:34,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:11:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:34,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:34,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:34,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:11:34,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:11:34,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:34,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:11:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:11:34,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:34,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 08:11:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:34,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:34,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:34,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:34,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:34,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:34,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:34,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:34,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:34,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:34,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:11:34,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221664156] [2020-10-14 08:11:34,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:34,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:34,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325772019] [2020-10-14 08:11:34,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:34,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:34,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:34,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:34,672 INFO L87 Difference]: Start difference. First operand 1365 states and 2177 transitions. Second operand 10 states. [2020-10-14 08:11:35,053 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:11:35,471 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-10-14 08:11:36,072 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-14 08:11:36,807 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 258 [2020-10-14 08:11:41,249 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:11:41,595 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:42,113 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:42,504 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:42,930 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:11:43,328 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:43,818 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:44,623 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:45,066 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:11:45,841 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:11:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:47,287 INFO L93 Difference]: Finished difference Result 5320 states and 8515 transitions. [2020-10-14 08:11:47,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:11:47,289 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-14 08:11:47,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:47,313 INFO L225 Difference]: With dead ends: 5320 [2020-10-14 08:11:47,313 INFO L226 Difference]: Without dead ends: 4046 [2020-10-14 08:11:47,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:11:47,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4046 states. [2020-10-14 08:11:47,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4046 to 3567. [2020-10-14 08:11:47,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3567 states. [2020-10-14 08:11:47,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 5639 transitions. [2020-10-14 08:11:47,661 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 5639 transitions. Word has length 157 [2020-10-14 08:11:47,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:47,662 INFO L479 AbstractCegarLoop]: Abstraction has 3567 states and 5639 transitions. [2020-10-14 08:11:47,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:11:47,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 5639 transitions. [2020-10-14 08:11:47,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 08:11:47,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:47,672 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] [2020-10-14 08:11:47,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:11:47,672 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:47,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:47,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1840630750, now seen corresponding path program 1 times [2020-10-14 08:11:47,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:47,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150960244] [2020-10-14 08:11:47,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:47,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:47,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:48,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:48,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:48,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:48,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:52,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:52,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 08:11:52,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:11:52,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:11:52,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:52,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:11:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 08:11:52,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:11:53,313 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:11:53,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:11:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:53,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:53,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:53,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:11:53,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:53,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:11:53,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:53,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:53,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:53,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:53,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:53,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:53,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:11:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:53,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:53,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:53,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:11:53,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:53,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 08:11:53,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:53,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:53,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:11:53,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:53,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:11:53,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:53,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:11:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:53,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:53,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:53,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:11:53,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:53,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:11:53,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:53,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:11:53,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:53,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:11:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:53,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:53,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:53,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:53,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:53,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:11:53,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:53,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:53,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:53,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:53,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:53,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:53,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:11:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:53,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:53,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:53,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:53,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:53,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:11:53,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:53,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:53,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:53,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:11:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:53,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:53,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:53,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:11:53,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:53,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:11:53,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:53,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:11:53,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:11:53,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:54,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:11:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:54,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:54,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:54,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:11:54,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:54,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:11:54,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:54,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:54,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:11:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:11:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:11:54,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:54,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 08:11:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:54,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:54,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:11:54,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:11:54,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:11:54,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:11:54,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:11:54,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:11:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:11:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:11:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:11:54,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:11:54,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:11:54,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150960244] [2020-10-14 08:11:54,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:11:54,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:11:54,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121984082] [2020-10-14 08:11:54,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:11:54,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:11:54,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:11:54,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:11:54,210 INFO L87 Difference]: Start difference. First operand 3567 states and 5639 transitions. Second operand 10 states. [2020-10-14 08:11:54,646 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:11:55,039 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-10-14 08:11:55,549 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-14 08:11:56,277 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 258 [2020-10-14 08:12:01,408 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:01,704 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:01,870 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:12:02,292 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:02,687 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:03,525 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:04,031 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:04,331 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:12:04,836 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:05,273 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:05,562 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:12:06,060 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:07,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:12:07,294 INFO L93 Difference]: Finished difference Result 14768 states and 23487 transitions. [2020-10-14 08:12:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:12:07,295 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-14 08:12:07,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:12:07,352 INFO L225 Difference]: With dead ends: 14768 [2020-10-14 08:12:07,352 INFO L226 Difference]: Without dead ends: 11550 [2020-10-14 08:12:07,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:12:07,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11550 states. [2020-10-14 08:12:08,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11550 to 10251. [2020-10-14 08:12:08,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10251 states. [2020-10-14 08:12:08,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10251 states to 10251 states and 16135 transitions. [2020-10-14 08:12:08,440 INFO L78 Accepts]: Start accepts. Automaton has 10251 states and 16135 transitions. Word has length 157 [2020-10-14 08:12:08,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:12:08,441 INFO L479 AbstractCegarLoop]: Abstraction has 10251 states and 16135 transitions. [2020-10-14 08:12:08,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:12:08,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10251 states and 16135 transitions. [2020-10-14 08:12:08,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-14 08:12:08,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:12:08,467 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] [2020-10-14 08:12:08,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:12:08,467 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:12:08,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:12:08,468 INFO L82 PathProgramCache]: Analyzing trace with hash -757738840, now seen corresponding path program 1 times [2020-10-14 08:12:08,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:12:08,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094710877] [2020-10-14 08:12:08,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:12:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:08,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:08,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:09,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:09,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:09,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:10,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:13,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:13,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 08:12:13,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:12:13,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 08:12:13,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:13,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:13,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:13,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:12:13,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 08:12:13,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:14,019 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:12:14,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:12:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:14,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:14,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:14,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:12:14,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:14,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:12:14,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:14,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:14,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:14,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:14,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:14,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:14,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:12:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:14,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:14,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:14,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:12:14,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:14,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 08:12:14,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:14,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:14,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:14,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:14,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:12:14,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:14,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:12:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:14,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:14,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:14,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:12:14,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:14,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:12:14,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:14,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:12:14,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:14,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:12:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:14,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:14,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:14,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:14,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:14,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:12:14,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:14,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:14,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:14,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:14,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:12:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:14,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:14,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:14,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:14,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:14,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:12:14,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:14,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:14,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:14,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:14,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:14,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:14,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:12:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:14,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:14,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:14,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:14,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:14,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:12:14,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:14,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:14,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:12:14,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:12:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:14,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:14,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:14,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:12:14,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:14,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:12:14,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:14,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:12:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:12:14,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:14,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 08:12:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:14,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:14,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:14,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:12:14,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:14,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:12:14,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:14,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:14,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:14,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:12:14,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:14,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:12:14,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094710877] [2020-10-14 08:12:14,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:12:14,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:12:14,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63339888] [2020-10-14 08:12:14,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:12:14,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:12:14,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:12:14,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:12:14,660 INFO L87 Difference]: Start difference. First operand 10251 states and 16135 transitions. Second operand 10 states. [2020-10-14 08:12:15,074 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:12:15,452 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:12:16,004 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-14 08:12:16,403 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:20,393 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:20,661 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:20,982 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:21,530 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:21,886 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:22,441 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:22,759 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:23,253 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:23,597 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:24,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:12:24,862 INFO L93 Difference]: Finished difference Result 32831 states and 51889 transitions. [2020-10-14 08:12:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:12:24,863 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-14 08:12:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:12:24,956 INFO L225 Difference]: With dead ends: 32831 [2020-10-14 08:12:24,956 INFO L226 Difference]: Without dead ends: 22800 [2020-10-14 08:12:24,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:12:25,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22800 states. [2020-10-14 08:12:27,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22800 to 20343. [2020-10-14 08:12:27,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20343 states. [2020-10-14 08:12:27,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20343 states to 20343 states and 31543 transitions. [2020-10-14 08:12:27,227 INFO L78 Accepts]: Start accepts. Automaton has 20343 states and 31543 transitions. Word has length 158 [2020-10-14 08:12:27,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:12:27,227 INFO L479 AbstractCegarLoop]: Abstraction has 20343 states and 31543 transitions. [2020-10-14 08:12:27,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:12:27,228 INFO L276 IsEmpty]: Start isEmpty. Operand 20343 states and 31543 transitions. [2020-10-14 08:12:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-14 08:12:27,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:12:27,274 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] [2020-10-14 08:12:27,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:12:27,274 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:12:27,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:12:27,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1498181690, now seen corresponding path program 1 times [2020-10-14 08:12:27,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:12:27,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096768446] [2020-10-14 08:12:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:12:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:27,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:27,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:27,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:27,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:27,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:28,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:32,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:32,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 08:12:32,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:12:32,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 08:12:32,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:32,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:32,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:32,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:12:32,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 08:12:32,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:32,780 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:12:32,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:12:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:32,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:32,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:32,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:12:32,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:32,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:12:32,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:32,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:32,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:32,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:12:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:32,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:32,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:32,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:12:32,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:32,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 08:12:32,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:32,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 08:12:32,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:32,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:12:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:32,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:32,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:32,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:12:32,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:12:32,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:32,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:12:32,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:33,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:12:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:33,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:33,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:33,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:33,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:33,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:12:33,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:33,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:33,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:33,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:33,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:33,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:33,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:12:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:33,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:33,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:33,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:33,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:33,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:12:33,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:33,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:33,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:33,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:12:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:33,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:33,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:33,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:33,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:33,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:12:33,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:33,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:33,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:33,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:12:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:33,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:33,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:33,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:12:33,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:33,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:12:33,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:33,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:33,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:33,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:12:33,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:12:33,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:33,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 08:12:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:33,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:33,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:33,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:12:33,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:33,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:12:33,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:33,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:33,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:33,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:12:33,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:33,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:33,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:12:33,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096768446] [2020-10-14 08:12:33,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:12:33,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:12:33,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142112021] [2020-10-14 08:12:33,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:12:33,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:12:33,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:12:33,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:12:33,245 INFO L87 Difference]: Start difference. First operand 20343 states and 31543 transitions. Second operand 10 states. [2020-10-14 08:12:33,713 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:12:34,084 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:12:34,722 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-14 08:12:35,121 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:39,595 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:12:39,888 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:40,121 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:40,642 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:41,004 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:41,595 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:41,964 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:42,529 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:12:42,877 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:12:44,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:12:44,599 INFO L93 Difference]: Finished difference Result 62381 states and 96891 transitions. [2020-10-14 08:12:44,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:12:44,600 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-14 08:12:44,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:12:44,753 INFO L225 Difference]: With dead ends: 62381 [2020-10-14 08:12:44,754 INFO L226 Difference]: Without dead ends: 44169 [2020-10-14 08:12:44,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:12:44,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44169 states. [2020-10-14 08:12:48,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44169 to 39507. [2020-10-14 08:12:48,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39507 states. [2020-10-14 08:12:48,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39507 states to 39507 states and 60112 transitions. [2020-10-14 08:12:48,141 INFO L78 Accepts]: Start accepts. Automaton has 39507 states and 60112 transitions. Word has length 158 [2020-10-14 08:12:48,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:12:48,142 INFO L479 AbstractCegarLoop]: Abstraction has 39507 states and 60112 transitions. [2020-10-14 08:12:48,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:12:48,142 INFO L276 IsEmpty]: Start isEmpty. Operand 39507 states and 60112 transitions. [2020-10-14 08:12:48,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-14 08:12:48,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:12:48,213 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] [2020-10-14 08:12:48,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:12:48,213 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:12:48,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:12:48,214 INFO L82 PathProgramCache]: Analyzing trace with hash 27512358, now seen corresponding path program 1 times [2020-10-14 08:12:48,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:12:48,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438269572] [2020-10-14 08:12:48,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:12:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:48,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:48,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:48,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:48,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:49,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:50,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:50,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:50,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:53,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:53,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 08:12:53,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:12:53,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:12:53,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:53,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:12:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 08:12:53,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:53,673 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:12:53,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:12:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:53,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:53,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:53,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:12:53,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:53,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:12:53,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:53,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:53,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:53,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:12:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:53,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:53,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:53,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:12:53,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:53,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 08:12:53,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:53,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:12:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:12:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:53,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:12:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:53,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:53,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:53,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:12:53,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:53,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:12:53,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:53,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:12:53,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:53,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:12:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:53,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:53,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:53,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:53,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:53,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:12:53,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:53,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:53,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:53,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:53,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:53,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:53,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:12:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:53,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:53,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:53,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:53,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:53,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:12:53,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:53,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:53,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:53,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:53,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:53,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:54,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:12:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:54,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:54,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:54,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:12:54,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:54,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:12:54,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:54,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:12:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:12:54,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:54,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:12:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:54,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:54,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:54,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:12:54,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:54,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:12:54,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:54,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:12:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:12:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:12:54,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:54,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-14 08:12:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:12:54,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:12:54,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:12:54,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:12:54,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:12:54,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:12:54,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:12:54,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:12:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:12:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:12:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:12:54,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:12:54,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:12:54,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438269572] [2020-10-14 08:12:54,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:12:54,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:12:54,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243465090] [2020-10-14 08:12:54,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:12:54,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:12:54,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:12:54,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:12:54,163 INFO L87 Difference]: Start difference. First operand 39507 states and 60112 transitions. Second operand 10 states. [2020-10-14 08:12:54,581 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:12:54,994 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:12:55,447 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:12:56,832 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-14 08:13:04,007 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 08:13:04,403 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:13:04,603 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:05,071 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:13:05,536 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:13:05,839 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:06,464 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:13:06,994 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:13:07,318 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:08,079 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:13:08,778 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:13:09,113 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:09,412 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:13:12,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:13:12,175 INFO L93 Difference]: Finished difference Result 147948 states and 225453 transitions. [2020-10-14 08:13:12,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:13:12,176 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-14 08:13:12,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:13:12,537 INFO L225 Difference]: With dead ends: 147948 [2020-10-14 08:13:12,537 INFO L226 Difference]: Without dead ends: 111128 [2020-10-14 08:13:12,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:13:12,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111128 states. [2020-10-14 08:13:21,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111128 to 100016. [2020-10-14 08:13:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100016 states. [2020-10-14 08:13:21,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100016 states to 100016 states and 150202 transitions. [2020-10-14 08:13:21,367 INFO L78 Accepts]: Start accepts. Automaton has 100016 states and 150202 transitions. Word has length 159 [2020-10-14 08:13:21,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:13:21,367 INFO L479 AbstractCegarLoop]: Abstraction has 100016 states and 150202 transitions. [2020-10-14 08:13:21,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:13:21,367 INFO L276 IsEmpty]: Start isEmpty. Operand 100016 states and 150202 transitions. [2020-10-14 08:13:21,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-14 08:13:21,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:13:21,481 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] [2020-10-14 08:13:21,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:13:21,482 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:13:21,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:13:21,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1980862141, now seen corresponding path program 1 times [2020-10-14 08:13:21,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:13:21,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799615089] [2020-10-14 08:13:21,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:13:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:21,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:21,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:21,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:22,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:22,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:22,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:26,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:26,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 08:13:26,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:13:26,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 08:13:26,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:26,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:26,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:13:26,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 08:13:26,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 08:13:26,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:26,930 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:13:26,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:13:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:26,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:26,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:26,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:13:26,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:13:26,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:26,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:26,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:26,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:26,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:26,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:26,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:13:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:26,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:27,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:27,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:13:27,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:27,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 08:13:27,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:27,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:27,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:27,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:27,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:13:27,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:27,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:13:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:27,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:27,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:27,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:13:27,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:27,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:13:27,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:27,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:13:27,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:27,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:13:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:27,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:27,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:27,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:27,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:13:27,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:27,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:27,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:27,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:13:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:27,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:27,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:27,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:27,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:27,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:13:27,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:27,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:27,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:27,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:27,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:27,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:27,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:13:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:27,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:27,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:27,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:27,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:27,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:13:27,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:27,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:27,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:13:27,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:13:27,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:13:27,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:27,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 08:13:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:27,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:27,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:27,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:13:27,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:27,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:13:27,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:27,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:27,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:27,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:13:27,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:27,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:27,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-14 08:13:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:27,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:27,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:27,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:13:27,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:27,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:13:27,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:27,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:27,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:13:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:27,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:13:27,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799615089] [2020-10-14 08:13:27,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:13:27,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:13:27,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046751690] [2020-10-14 08:13:27,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:13:27,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:13:27,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:13:27,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:13:27,281 INFO L87 Difference]: Start difference. First operand 100016 states and 150202 transitions. Second operand 10 states. [2020-10-14 08:13:27,631 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:13:33,051 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:13:33,574 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:13:34,179 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:34,625 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:13:35,038 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 08:13:35,218 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:39,384 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:40,004 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:13:40,829 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 08:13:41,005 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:13:41,317 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:13:41,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:13:41,756 INFO L93 Difference]: Finished difference Result 181970 states and 277154 transitions. [2020-10-14 08:13:41,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:13:41,757 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-14 08:13:41,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:13:42,084 INFO L225 Difference]: With dead ends: 181970 [2020-10-14 08:13:42,085 INFO L226 Difference]: Without dead ends: 143526 [2020-10-14 08:13:42,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:13:42,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143526 states. [2020-10-14 08:13:52,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143526 to 126342. [2020-10-14 08:13:52,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126342 states. [2020-10-14 08:13:53,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126342 states to 126342 states and 190124 transitions. [2020-10-14 08:13:53,190 INFO L78 Accepts]: Start accepts. Automaton has 126342 states and 190124 transitions. Word has length 159 [2020-10-14 08:13:53,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:13:53,190 INFO L479 AbstractCegarLoop]: Abstraction has 126342 states and 190124 transitions. [2020-10-14 08:13:53,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:13:53,190 INFO L276 IsEmpty]: Start isEmpty. Operand 126342 states and 190124 transitions. [2020-10-14 08:13:53,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-14 08:13:53,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:13:53,286 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] [2020-10-14 08:13:53,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:13:53,287 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:13:53,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:13:53,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1609079553, now seen corresponding path program 1 times [2020-10-14 08:13:53,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:13:53,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438287774] [2020-10-14 08:13:53,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:13:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:53,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:53,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:53,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:53,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:53,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:56,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:57,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:57,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:58,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:58,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-14 08:13:58,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:13:58,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 08:13:58,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:58,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:58,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:13:58,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:13:58,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 08:13:58,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:58,788 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 08:13:58,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:13:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:58,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:58,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:58,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:13:58,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:58,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:13:58,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:58,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:58,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:58,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:13:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:58,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:58,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:58,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:13:58,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:58,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 08:13:58,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:58,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:58,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:13:58,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 08:13:58,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:59,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 08:13:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:59,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:59,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:59,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:13:59,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:59,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:13:59,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:59,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:13:59,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:59,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 08:13:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:59,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:59,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:59,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:59,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:59,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:13:59,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:59,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:59,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:59,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:59,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:59,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:59,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 08:13:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:59,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:59,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:59,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:13:59,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:13:59,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:59,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:13:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:13:59,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:59,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 08:13:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:59,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:59,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:59,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:13:59,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:59,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:13:59,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:59,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:13:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:13:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:13:59,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:59,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 08:13:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:59,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:59,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:59,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:13:59,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:59,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:13:59,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:59,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:13:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:59,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:59,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 08:13:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:13:59,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:13:59,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:13:59,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:13:59,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:13:59,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:13:59,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:13:59,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:13:59,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:13:59,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:13:59,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:13:59,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:13:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:13:59,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438287774] [2020-10-14 08:13:59,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:13:59,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:13:59,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425403000] [2020-10-14 08:13:59,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:13:59,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:13:59,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:13:59,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:13:59,267 INFO L87 Difference]: Start difference. First operand 126342 states and 190124 transitions. Second operand 10 states. [2020-10-14 08:13:59,675 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-14 08:14:00,085 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-14 08:14:00,545 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-14 08:14:01,539 WARN L193 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258