/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/array-cav19/array_init_pair_symmetr.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 23:10:41,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 23:10:41,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 23:10:41,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 23:10:41,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 23:10:41,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 23:10:41,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 23:10:41,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 23:10:41,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 23:10:41,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 23:10:41,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 23:10:41,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 23:10:41,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 23:10:41,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 23:10:41,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 23:10:41,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 23:10:41,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 23:10:41,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 23:10:41,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 23:10:41,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 23:10:41,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 23:10:41,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 23:10:41,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 23:10:41,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 23:10:41,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 23:10:41,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 23:10:41,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 23:10:41,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 23:10:41,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 23:10:41,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 23:10:41,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 23:10:41,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 23:10:41,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 23:10:41,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 23:10:41,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 23:10:41,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 23:10:41,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 23:10:41,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 23:10:41,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 23:10:41,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 23:10:41,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 23:10:41,177 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 23:10:41,201 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 23:10:41,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 23:10:41,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 23:10:41,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 23:10:41,203 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 23:10:41,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 23:10:41,203 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 23:10:41,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 23:10:41,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 23:10:41,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 23:10:41,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 23:10:41,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 23:10:41,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 23:10:41,204 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 23:10:41,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 23:10:41,205 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 23:10:41,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 23:10:41,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 23:10:41,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 23:10:41,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 23:10:41,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 23:10:41,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:10:41,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 23:10:41,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 23:10:41,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 23:10:41,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 23:10:41,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 23:10:41,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 23:10:41,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 23:10:41,208 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; [2020-10-13 23:10:41,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 23:10:41,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 23:10:41,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 23:10:41,597 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 23:10:41,597 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 23:10:41,598 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-cav19/array_init_pair_symmetr.c [2020-10-13 23:10:41,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a029ba730/c9121083cdc445f9830fdcdb30dd97b7/FLAGfcaef293e [2020-10-13 23:10:42,148 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 23:10:42,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-cav19/array_init_pair_symmetr.c [2020-10-13 23:10:42,155 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a029ba730/c9121083cdc445f9830fdcdb30dd97b7/FLAGfcaef293e [2020-10-13 23:10:42,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a029ba730/c9121083cdc445f9830fdcdb30dd97b7 [2020-10-13 23:10:42,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 23:10:42,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 23:10:42,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 23:10:42,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 23:10:42,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 23:10:42,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dadf5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42, skipping insertion in model container [2020-10-13 23:10:42,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 23:10:42,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 23:10:42,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:10:42,767 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 23:10:42,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:10:42,807 INFO L208 MainTranslator]: Completed translation [2020-10-13 23:10:42,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42 WrapperNode [2020-10-13 23:10:42,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 23:10:42,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 23:10:42,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 23:10:42,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 23:10:42,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 23:10:42,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 23:10:42,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 23:10:42,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 23:10:42,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:10:43,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 23:10:43,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 23:10:43,005 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 23:10:43,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 23:10:43,005 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 23:10:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 23:10:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 23:10:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 23:10:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 23:10:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 23:10:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 23:10:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 23:10:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 23:10:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 23:10:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 23:10:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 23:10:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 23:10:43,267 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 23:10:43,267 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-13 23:10:43,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:43 BoogieIcfgContainer [2020-10-13 23:10:43,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 23:10:43,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 23:10:43,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 23:10:43,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 23:10:43,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:10:42" (1/3) ... [2020-10-13 23:10:43,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701b4c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:43, skipping insertion in model container [2020-10-13 23:10:43,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (2/3) ... [2020-10-13 23:10:43,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701b4c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:43, skipping insertion in model container [2020-10-13 23:10:43,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:43" (3/3) ... [2020-10-13 23:10:43,280 INFO L109 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr.c [2020-10-13 23:10:43,291 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 23:10:43,299 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 23:10:43,317 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 23:10:43,346 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 23:10:43,346 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 23:10:43,347 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 23:10:43,347 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 23:10:43,347 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 23:10:43,347 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 23:10:43,347 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 23:10:43,347 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 23:10:43,374 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-13 23:10:43,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-13 23:10:43,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:10:43,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:10:43,383 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:10:43,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:10:43,392 INFO L82 PathProgramCache]: Analyzing trace with hash 112015534, now seen corresponding path program 1 times [2020-10-13 23:10:43,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:10:43,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688822996] [2020-10-13 23:10:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:10:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:43,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:43,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:43,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:43,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:44,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:10:44,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:10:44,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-10-13 23:10:44,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:44,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:10:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:10:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 23:10:44,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 23:10:44,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:10:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:44,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:44,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:10:44,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:44,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 23:10:44,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:44,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:44,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:44,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:44,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:10:44,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:44,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:10:44,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688822996] [2020-10-13 23:10:44,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:10:44,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 23:10:44,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952991325] [2020-10-13 23:10:44,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 23:10:44,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:10:44,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 23:10:44,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 23:10:44,355 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-10-13 23:10:44,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:10:44,639 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2020-10-13 23:10:44,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 23:10:44,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-13 23:10:44,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:10:44,658 INFO L225 Difference]: With dead ends: 66 [2020-10-13 23:10:44,658 INFO L226 Difference]: Without dead ends: 34 [2020-10-13 23:10:44,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:10:44,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-13 23:10:44,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2020-10-13 23:10:44,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-13 23:10:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-10-13 23:10:44,757 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 15 [2020-10-13 23:10:44,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:10:44,758 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-10-13 23:10:44,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 23:10:44,758 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-10-13 23:10:44,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-13 23:10:44,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:10:44,762 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] [2020-10-13 23:10:44,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 23:10:44,763 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:10:44,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:10:44,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1327060019, now seen corresponding path program 1 times [2020-10-13 23:10:44,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:10:44,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931094906] [2020-10-13 23:10:44,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:10:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:44,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:45,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:45,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:45,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 23:10:45,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:10:45,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 730 [2020-10-13 23:10:45,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:45,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:10:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:10:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 23:10:45,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 23:10:45,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:10:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:45,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:45,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:45,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:10:45,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:45,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:10:45,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:45,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:45,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:45,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:45,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:10:45,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-13 23:10:45,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:10:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:45,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:45,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:45,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:45,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:45,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:10:45,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:45,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:45,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:10:45,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:45,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 23:10:45,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931094906] [2020-10-13 23:10:45,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:10:45,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 23:10:45,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600553691] [2020-10-13 23:10:45,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 23:10:45,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:10:45,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 23:10:45,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 23:10:45,710 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 6 states. [2020-10-13 23:10:45,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:10:45,971 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2020-10-13 23:10:45,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 23:10:45,972 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-13 23:10:45,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:10:45,973 INFO L225 Difference]: With dead ends: 59 [2020-10-13 23:10:45,974 INFO L226 Difference]: Without dead ends: 44 [2020-10-13 23:10:45,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 23:10:45,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-13 23:10:45,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2020-10-13 23:10:45,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-13 23:10:45,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2020-10-13 23:10:45,986 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 25 [2020-10-13 23:10:45,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:10:45,986 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-10-13 23:10:45,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 23:10:45,987 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2020-10-13 23:10:45,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-13 23:10:45,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:10:45,989 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:10:45,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:10:45,990 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:10:45,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:10:45,991 INFO L82 PathProgramCache]: Analyzing trace with hash 11953644, now seen corresponding path program 2 times [2020-10-13 23:10:45,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:10:45,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257726735] [2020-10-13 23:10:45,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:10:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:46,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:46,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:46,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:46,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:47,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:47,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:47,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-13 23:10:47,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 23:10:47,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1979 [2020-10-13 23:10:47,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:47,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:47,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:10:47,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:10:47,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 23:10:47,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:48,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:10:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:48,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:48,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:48,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:10:48,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:48,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:10:48,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:48,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:48,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:48,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:48,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:10:48,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:48,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:10:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:48,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:48,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:48,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:48,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:48,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:10:48,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:48,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:48,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:48,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:48,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:10:48,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:48,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:10:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:48,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:48,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:48,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:48,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:10:48,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:48,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:48,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:10:48,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 23:10:48,104 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 23:10:48,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257726735] [2020-10-13 23:10:48,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:10:48,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 23:10:48,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705326617] [2020-10-13 23:10:48,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 23:10:48,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:10:48,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 23:10:48,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:10:48,112 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 7 states. [2020-10-13 23:10:48,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:10:48,362 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2020-10-13 23:10:48,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 23:10:48,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-10-13 23:10:48,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:10:48,364 INFO L225 Difference]: With dead ends: 71 [2020-10-13 23:10:48,364 INFO L226 Difference]: Without dead ends: 54 [2020-10-13 23:10:48,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-13 23:10:48,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-13 23:10:48,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2020-10-13 23:10:48,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-13 23:10:48,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-10-13 23:10:48,375 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 35 [2020-10-13 23:10:48,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:10:48,376 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-10-13 23:10:48,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 23:10:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-10-13 23:10:48,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-13 23:10:48,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:10:48,378 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:10:48,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 23:10:48,379 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:10:48,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:10:48,379 INFO L82 PathProgramCache]: Analyzing trace with hash 194918155, now seen corresponding path program 3 times [2020-10-13 23:10:48,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:10:48,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113919226] [2020-10-13 23:10:48,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:10:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:48,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:48,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:49,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:50,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:51,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:53,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:53,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 23:10:53,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 23:10:53,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 23:10:53,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:53,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 23:10:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:10:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 23:10:53,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:53,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:10:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:53,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:53,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:53,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:10:53,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:53,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:10:53,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:53,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:53,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:10:53,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:53,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:10:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:53,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:53,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:53,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:53,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:53,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:10:53,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:53,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:53,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:10:53,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:53,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:10:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:53,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:53,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:53,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:53,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:53,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:10:53,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:53,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:10:53,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:53,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:10:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:53,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:53,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:53,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:53,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:53,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:10:53,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:53,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:53,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:53,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:53,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:10:53,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:53,537 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-13 23:10:53,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113919226] [2020-10-13 23:10:53,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:10:53,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 23:10:53,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448098563] [2020-10-13 23:10:53,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 23:10:53,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:10:53,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 23:10:53,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 23:10:53,540 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 8 states. [2020-10-13 23:10:53,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:10:53,834 INFO L93 Difference]: Finished difference Result 83 states and 95 transitions. [2020-10-13 23:10:53,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 23:10:53,835 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-10-13 23:10:53,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:10:53,837 INFO L225 Difference]: With dead ends: 83 [2020-10-13 23:10:53,837 INFO L226 Difference]: Without dead ends: 64 [2020-10-13 23:10:53,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-13 23:10:53,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-13 23:10:53,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48. [2020-10-13 23:10:53,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 23:10:53,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2020-10-13 23:10:53,848 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 45 [2020-10-13 23:10:53,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:10:53,848 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-10-13 23:10:53,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 23:10:53,849 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2020-10-13 23:10:53,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 23:10:53,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:10:53,851 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:10:53,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 23:10:53,851 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:10:53,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:10:53,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1773661994, now seen corresponding path program 4 times [2020-10-13 23:10:53,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:10:53,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579921775] [2020-10-13 23:10:53,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:10:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:53,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:53,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:55,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:56,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:58,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:58,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 23:10:58,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:10:58,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 23:10:58,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:58,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:58,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 23:10:58,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:10:58,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 23:10:58,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:58,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:10:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:58,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:58,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:58,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:10:58,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:58,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:10:58,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:58,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:58,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:58,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:10:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:58,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:10:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:58,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:58,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:58,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:58,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:58,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:10:58,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:58,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:58,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:58,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:58,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:10:58,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:58,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:10:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:58,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:59,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:59,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:59,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:59,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:10:59,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:59,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:10:59,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:59,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:10:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:59,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:59,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:59,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:59,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:59,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:10:59,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:59,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:59,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:59,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:59,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:10:59,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:59,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:10:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:59,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:59,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:59,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:59,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:59,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:10:59,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:59,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:59,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:10:59,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:59,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:10:59,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:59,032 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-13 23:10:59,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579921775] [2020-10-13 23:10:59,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:10:59,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 23:10:59,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252276526] [2020-10-13 23:10:59,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 23:10:59,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:10:59,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 23:10:59,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-13 23:10:59,035 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand 9 states. [2020-10-13 23:10:59,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:10:59,406 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2020-10-13 23:10:59,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 23:10:59,406 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-10-13 23:10:59,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:10:59,408 INFO L225 Difference]: With dead ends: 95 [2020-10-13 23:10:59,408 INFO L226 Difference]: Without dead ends: 74 [2020-10-13 23:10:59,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-13 23:10:59,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-13 23:10:59,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 54. [2020-10-13 23:10:59,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 23:10:59,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2020-10-13 23:10:59,418 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 55 [2020-10-13 23:10:59,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:10:59,419 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2020-10-13 23:10:59,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 23:10:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2020-10-13 23:10:59,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 23:10:59,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:10:59,421 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:10:59,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 23:10:59,422 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:10:59,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:10:59,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1598726583, now seen corresponding path program 5 times [2020-10-13 23:10:59,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:10:59,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919530056] [2020-10-13 23:10:59,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:10:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:59,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:59,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:01,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:02,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:04,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:04,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-13 23:11:04,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:11:04,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 23:11:04,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:04,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:04,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 23:11:04,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:11:04,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 23:11:04,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:04,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:11:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:04,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:04,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:04,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:11:04,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:04,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:11:04,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:04,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:04,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:04,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:04,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:11:04,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:04,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:11:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:04,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:04,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:04,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:04,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:04,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:04,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:04,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:04,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:04,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:04,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:04,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:04,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:11:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:04,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:04,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:04,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:04,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:04,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:04,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:04,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:04,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:04,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:04,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:04,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:11:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:04,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:04,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:04,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:04,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:04,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:04,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:04,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:04,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:04,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:04,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:04,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:04,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:11:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:04,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:04,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:04,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:04,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:04,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:04,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:04,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:04,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:04,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:04,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:04,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:04,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:11:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:04,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:04,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:04,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:04,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:04,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:04,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:04,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:04,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:04,608 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-13 23:11:04,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919530056] [2020-10-13 23:11:04,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:11:04,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 23:11:04,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703603661] [2020-10-13 23:11:04,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 23:11:04,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:11:04,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 23:11:04,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-13 23:11:04,612 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 10 states. [2020-10-13 23:11:05,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:11:05,050 INFO L93 Difference]: Finished difference Result 107 states and 123 transitions. [2020-10-13 23:11:05,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 23:11:05,051 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2020-10-13 23:11:05,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:11:05,052 INFO L225 Difference]: With dead ends: 107 [2020-10-13 23:11:05,052 INFO L226 Difference]: Without dead ends: 84 [2020-10-13 23:11:05,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-10-13 23:11:05,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-13 23:11:05,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 60. [2020-10-13 23:11:05,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-13 23:11:05,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2020-10-13 23:11:05,064 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 65 [2020-10-13 23:11:05,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:11:05,064 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2020-10-13 23:11:05,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 23:11:05,065 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2020-10-13 23:11:05,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-13 23:11:05,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:11:05,066 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:11:05,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 23:11:05,066 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:11:05,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:11:05,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1897900952, now seen corresponding path program 6 times [2020-10-13 23:11:05,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:11:05,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100431867] [2020-10-13 23:11:05,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:11:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:05,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:05,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:05,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:07,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:09,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:10,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:10,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 23:11:10,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 23:11:10,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5142 [2020-10-13 23:11:10,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:10,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:10,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 23:11:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:11:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 23:11:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:10,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:11:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:10,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:10,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:10,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:11:10,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:10,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:10,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:10,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:10,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:10,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:10,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:11:10,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:10,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:11:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:10,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:10,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:10,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:10,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:10,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:10,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:10,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:10,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:10,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:10,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:10,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:10,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:11:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:10,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:10,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:10,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:10,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:10,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:10,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:10,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:10,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:10,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:11:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:10,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:10,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:10,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:10,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:10,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:10,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:10,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:10,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:10,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:11:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:10,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:10,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:10,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:10,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:10,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:10,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:10,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:10,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:10,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:10,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:11:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:10,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:10,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:10,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:10,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:10,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:10,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:10,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:10,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:10,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:10,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:10,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:10,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 23:11:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:10,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:10,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:10,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:10,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:10,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:10,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:10,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:10,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:10,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:10,421 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-13 23:11:10,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100431867] [2020-10-13 23:11:10,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:11:10,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 23:11:10,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949210228] [2020-10-13 23:11:10,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 23:11:10,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:11:10,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 23:11:10,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-13 23:11:10,426 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand 11 states. [2020-10-13 23:11:10,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:11:10,878 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2020-10-13 23:11:10,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 23:11:10,879 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 75 [2020-10-13 23:11:10,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:11:10,881 INFO L225 Difference]: With dead ends: 119 [2020-10-13 23:11:10,881 INFO L226 Difference]: Without dead ends: 94 [2020-10-13 23:11:10,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-13 23:11:10,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-13 23:11:10,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 66. [2020-10-13 23:11:10,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-13 23:11:10,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2020-10-13 23:11:10,904 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 74 transitions. Word has length 75 [2020-10-13 23:11:10,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:11:10,907 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 74 transitions. [2020-10-13 23:11:10,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 23:11:10,907 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 74 transitions. [2020-10-13 23:11:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 23:11:10,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:11:10,912 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:11:10,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 23:11:10,914 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:11:10,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:11:10,915 INFO L82 PathProgramCache]: Analyzing trace with hash -702897785, now seen corresponding path program 7 times [2020-10-13 23:11:10,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:11:10,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66395683] [2020-10-13 23:11:10,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:11:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:10,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:11,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:12,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:13,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:15,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:15,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 23:11:15,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:11:15,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 23:11:15,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:15,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:15,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 23:11:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:11:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 23:11:15,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:16,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:11:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:16,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:16,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:16,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:11:16,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:16,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:16,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:16,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:11:16,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:16,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:11:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:16,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:16,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:16,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:16,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:16,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:16,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:16,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:16,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:16,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:16,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:16,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:16,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:11:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:16,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:16,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:16,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:16,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:16,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:16,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:16,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:16,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:16,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:11:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:16,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:16,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:16,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:16,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:16,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:16,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:16,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:16,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:16,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:16,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:16,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:16,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:11:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:16,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:16,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:16,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:16,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:16,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:16,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:16,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:16,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:16,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:16,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:16,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:16,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:11:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:16,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:16,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:16,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:16,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:16,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:16,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:16,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:16,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:16,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:16,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:16,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:16,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 23:11:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:16,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:16,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:16,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:16,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:16,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:16,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:16,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:16,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:16,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:16,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 23:11:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:16,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:16,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:16,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:16,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:16,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:16,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:16,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-13 23:11:16,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66395683] [2020-10-13 23:11:16,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:11:16,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 23:11:16,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598130476] [2020-10-13 23:11:16,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 23:11:16,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:11:16,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 23:11:16,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-13 23:11:16,139 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. Second operand 12 states. [2020-10-13 23:11:16,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:11:16,602 INFO L93 Difference]: Finished difference Result 131 states and 151 transitions. [2020-10-13 23:11:16,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 23:11:16,602 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 85 [2020-10-13 23:11:16,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:11:16,604 INFO L225 Difference]: With dead ends: 131 [2020-10-13 23:11:16,604 INFO L226 Difference]: Without dead ends: 104 [2020-10-13 23:11:16,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2020-10-13 23:11:16,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-13 23:11:16,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 72. [2020-10-13 23:11:16,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-13 23:11:16,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2020-10-13 23:11:16,618 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 85 [2020-10-13 23:11:16,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:11:16,621 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2020-10-13 23:11:16,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 23:11:16,621 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2020-10-13 23:11:16,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-13 23:11:16,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:11:16,624 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:11:16,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 23:11:16,624 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:11:16,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:11:16,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1188959654, now seen corresponding path program 8 times [2020-10-13 23:11:16,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:11:16,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443582834] [2020-10-13 23:11:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:11:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:16,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:17,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:20,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:21,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:21,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 23:11:21,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:11:21,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 23:11:21,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:21,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 23:11:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:11:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 23:11:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:21,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:11:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:21,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:21,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:21,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:11:21,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:21,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:21,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:21,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:11:21,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:21,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:11:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:21,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:21,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:21,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:21,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:21,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:21,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:21,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:21,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:21,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:11:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:21,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:21,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:21,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:21,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:21,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:21,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:21,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:21,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:21,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:21,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:21,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:21,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:11:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:21,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:21,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:21,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:21,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:21,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:21,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:21,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:21,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:21,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:21,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:21,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:21,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:11:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:21,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:21,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:21,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:21,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:21,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:21,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:21,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:21,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:21,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:21,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:11:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:21,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:21,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:21,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:21,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:21,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:21,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:21,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:21,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:21,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 23:11:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:21,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:21,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:21,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:21,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:21,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:21,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:21,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:21,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:21,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:21,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 23:11:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:21,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:21,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:21,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:21,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:21,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:21,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:21,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:21,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:21,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:21,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:21,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:21,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 23:11:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:21,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:21,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:21,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:21,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:21,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:21,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:21,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:21,869 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2020-10-13 23:11:21,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443582834] [2020-10-13 23:11:21,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:11:21,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 23:11:21,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376942875] [2020-10-13 23:11:21,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 23:11:21,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:11:21,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 23:11:21,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-13 23:11:21,872 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand 13 states. [2020-10-13 23:11:22,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:11:22,366 INFO L93 Difference]: Finished difference Result 143 states and 165 transitions. [2020-10-13 23:11:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 23:11:22,367 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 95 [2020-10-13 23:11:22,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:11:22,368 INFO L225 Difference]: With dead ends: 143 [2020-10-13 23:11:22,369 INFO L226 Difference]: Without dead ends: 114 [2020-10-13 23:11:22,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2020-10-13 23:11:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-13 23:11:22,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 78. [2020-10-13 23:11:22,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-13 23:11:22,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2020-10-13 23:11:22,380 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 95 [2020-10-13 23:11:22,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:11:22,381 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2020-10-13 23:11:22,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 23:11:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2020-10-13 23:11:22,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-13 23:11:22,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:11:22,382 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:11:22,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 23:11:22,383 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:11:22,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:11:22,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1262256325, now seen corresponding path program 9 times [2020-10-13 23:11:22,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:11:22,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867073283] [2020-10-13 23:11:22,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:11:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:22,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:22,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:22,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:27,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:27,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 23:11:27,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:11:27,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-13 23:11:27,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:27,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:27,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 23:11:27,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:11:27,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-13 23:11:27,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:27,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:11:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:27,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:27,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:27,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:11:27,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:27,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:27,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:27,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:27,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:11:27,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:27,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:11:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:27,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:27,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:27,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:27,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:27,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:27,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:27,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:27,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:27,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:11:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:27,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:27,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:27,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:27,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:27,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:27,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:27,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:27,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:27,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:11:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:27,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:27,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:27,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:27,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:27,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:27,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:27,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:27,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:27,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:27,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:11:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:27,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:27,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:27,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:27,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:27,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:27,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:27,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:27,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:27,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:27,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:11:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:27,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:27,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:27,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:27,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:27,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:11:27,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:27,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:27,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:27,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:27,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:27,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:27,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 23:11:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:27,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:27,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:27,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:27,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:27,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:27,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:27,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:27,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:27,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:27,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:27,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 23:11:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:27,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:27,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:27,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:27,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:27,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:27,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:27,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:27,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:27,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:27,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 23:11:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:27,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:27,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:27,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:27,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:27,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:27,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:27,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:27,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:27,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:27,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 23:11:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:27,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:27,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:27,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:27,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:27,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:27,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:27,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:27,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:27,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2020-10-13 23:11:27,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867073283] [2020-10-13 23:11:27,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:11:27,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 23:11:27,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990885616] [2020-10-13 23:11:27,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 23:11:27,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:11:27,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 23:11:27,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-10-13 23:11:27,716 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 14 states. [2020-10-13 23:11:28,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:11:28,499 INFO L93 Difference]: Finished difference Result 155 states and 179 transitions. [2020-10-13 23:11:28,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 23:11:28,499 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 105 [2020-10-13 23:11:28,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:11:28,501 INFO L225 Difference]: With dead ends: 155 [2020-10-13 23:11:28,501 INFO L226 Difference]: Without dead ends: 124 [2020-10-13 23:11:28,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2020-10-13 23:11:28,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-13 23:11:28,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 84. [2020-10-13 23:11:28,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-13 23:11:28,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 95 transitions. [2020-10-13 23:11:28,520 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 95 transitions. Word has length 105 [2020-10-13 23:11:28,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:11:28,521 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 95 transitions. [2020-10-13 23:11:28,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 23:11:28,521 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 95 transitions. [2020-10-13 23:11:28,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 23:11:28,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:11:28,523 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:11:28,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 23:11:28,523 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:11:28,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:11:28,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1373614820, now seen corresponding path program 10 times [2020-10-13 23:11:28,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:11:28,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552898907] [2020-10-13 23:11:28,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:11:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:28,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:28,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:32,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 23:11:36,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:11:36,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7963 [2020-10-13 23:11:36,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 23:11:36,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:11:36,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-13 23:11:36,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:36,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:11:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:36,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:11:36,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:36,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:36,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:11:36,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:36,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:11:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:36,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:36,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:36,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:11:36,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:36,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:36,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:11:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:36,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:36,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:36,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:36,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:36,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:11:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:36,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:36,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:36,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:36,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:36,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:36,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:36,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:36,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:11:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:36,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:36,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:36,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:36,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:36,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:36,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:36,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:36,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:11:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:36,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:36,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:36,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:36,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:36,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 23:11:36,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 23:11:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:36,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:36,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:36,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:11:36,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:36,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:36,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 23:11:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:36,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:36,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:36,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:11:36,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:36,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:36,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 23:11:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:36,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:36,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:36,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:36,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:36,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:36,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 23:11:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:36,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:36,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:36,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:11:36,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:36,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:36,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:36,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:11:36,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 23:11:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:36,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:36,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:36,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:36,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:36,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:36,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:36,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:36,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:36,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:36,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:36,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:36,787 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2020-10-13 23:11:36,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552898907] [2020-10-13 23:11:36,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:11:36,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 23:11:36,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099423060] [2020-10-13 23:11:36,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 23:11:36,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:11:36,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 23:11:36,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2020-10-13 23:11:36,789 INFO L87 Difference]: Start difference. First operand 84 states and 95 transitions. Second operand 15 states. [2020-10-13 23:11:37,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:11:37,448 INFO L93 Difference]: Finished difference Result 167 states and 193 transitions. [2020-10-13 23:11:37,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 23:11:37,448 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 115 [2020-10-13 23:11:37,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:11:37,450 INFO L225 Difference]: With dead ends: 167 [2020-10-13 23:11:37,450 INFO L226 Difference]: Without dead ends: 134 [2020-10-13 23:11:37,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=227, Invalid=423, Unknown=0, NotChecked=0, Total=650 [2020-10-13 23:11:37,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-13 23:11:37,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 90. [2020-10-13 23:11:37,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-13 23:11:37,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2020-10-13 23:11:37,472 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 115 [2020-10-13 23:11:37,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:11:37,475 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2020-10-13 23:11:37,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 23:11:37,475 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2020-10-13 23:11:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 23:11:37,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:11:37,479 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:11:37,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 23:11:37,480 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:11:37,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:11:37,480 INFO L82 PathProgramCache]: Analyzing trace with hash 956922883, now seen corresponding path program 11 times [2020-10-13 23:11:37,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:11:37,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360744054] [2020-10-13 23:11:37,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:11:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:37,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:38,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:38,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-13 23:11:44,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:11:44,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6750 [2020-10-13 23:11:44,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 23:11:44,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:11:44,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-13 23:11:44,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:11:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:11:44,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:44,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:11:44,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:11:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:44,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:44,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:44,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:11:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:44,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:44,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:44,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:11:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:44,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:44,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:44,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:11:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:44,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:44,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:44,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:11:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:44,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:44,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:44,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 23:11:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:44,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:44,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:44,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 23:11:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:44,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:44,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:44,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 23:11:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:44,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:44,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:44,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 23:11:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:44,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:44,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:44,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 23:11:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:44,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:11:44,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:44,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 23:11:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:44,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:11:44,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:11:44,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:11:44,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:11:44,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:11:44,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:11:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:11:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:11:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:11:44,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:11:44,523 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2020-10-13 23:11:44,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360744054] [2020-10-13 23:11:44,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:11:44,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 23:11:44,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957136573] [2020-10-13 23:11:44,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 23:11:44,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:11:44,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 23:11:44,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2020-10-13 23:11:44,526 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand 16 states. [2020-10-13 23:11:45,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:11:45,285 INFO L93 Difference]: Finished difference Result 179 states and 207 transitions. [2020-10-13 23:11:45,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 23:11:45,287 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 125 [2020-10-13 23:11:45,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:11:45,289 INFO L225 Difference]: With dead ends: 179 [2020-10-13 23:11:45,289 INFO L226 Difference]: Without dead ends: 144 [2020-10-13 23:11:45,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=491, Unknown=0, NotChecked=0, Total=756 [2020-10-13 23:11:45,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-13 23:11:45,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 96. [2020-10-13 23:11:45,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-13 23:11:45,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2020-10-13 23:11:45,316 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 125 [2020-10-13 23:11:45,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:11:45,316 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2020-10-13 23:11:45,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 23:11:45,317 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2020-10-13 23:11:45,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-13 23:11:45,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:11:45,319 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:11:45,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 23:11:45,319 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:11:45,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:11:45,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1181504478, now seen corresponding path program 12 times [2020-10-13 23:11:45,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:11:45,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964586344] [2020-10-13 23:11:45,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:11:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:11:45,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:46,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:11:46,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-13 23:12:00,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:12:00,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15189 [2020-10-13 23:12:00,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 23:12:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:12:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 23:12:00,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:12:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:12:00,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:00,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:12:00,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:12:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:00,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:12:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:00,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:12:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:00,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:12:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:00,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:12:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:00,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 23:12:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:00,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 23:12:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:00,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 23:12:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:00,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 23:12:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:00,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 23:12:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:00,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 23:12:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:00,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 23:12:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:00,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:00,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:00,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:00,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:00,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:00,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:00,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:00,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:00,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:00,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:00,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:00,839 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-10-13 23:12:00,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964586344] [2020-10-13 23:12:00,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:12:00,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 23:12:00,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826922348] [2020-10-13 23:12:00,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 23:12:00,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:12:00,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 23:12:00,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=163, Unknown=0, NotChecked=0, Total=272 [2020-10-13 23:12:00,844 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand 17 states. [2020-10-13 23:12:01,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:12:01,583 INFO L93 Difference]: Finished difference Result 191 states and 221 transitions. [2020-10-13 23:12:01,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 23:12:01,584 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 135 [2020-10-13 23:12:01,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:12:01,586 INFO L225 Difference]: With dead ends: 191 [2020-10-13 23:12:01,586 INFO L226 Difference]: Without dead ends: 154 [2020-10-13 23:12:01,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=609, Unknown=0, NotChecked=0, Total=930 [2020-10-13 23:12:01,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-13 23:12:01,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 102. [2020-10-13 23:12:01,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-13 23:12:01,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2020-10-13 23:12:01,604 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 135 [2020-10-13 23:12:01,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:12:01,607 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2020-10-13 23:12:01,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 23:12:01,607 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2020-10-13 23:12:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-13 23:12:01,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:12:01,608 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:12:01,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 23:12:01,609 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:12:01,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:12:01,609 INFO L82 PathProgramCache]: Analyzing trace with hash -772795583, now seen corresponding path program 13 times [2020-10-13 23:12:01,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:12:01,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149849018] [2020-10-13 23:12:01,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:12:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:01,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:02,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:03,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 23:12:23,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:12:23,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21848 [2020-10-13 23:12:23,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 23:12:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:12:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-13 23:12:23,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:12:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:12:23,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:12:23,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:12:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:23,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:12:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:12:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:12:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:12:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 23:12:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:12:23,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 23:12:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 23:12:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 23:12:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 23:12:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:23,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 23:12:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 23:12:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 23:12:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:23,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:23,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:23,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:23,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:23,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:23,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:23,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:23,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:23,771 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-10-13 23:12:23,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1149849018] [2020-10-13 23:12:23,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:12:23,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 23:12:23,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148658946] [2020-10-13 23:12:23,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 23:12:23,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:12:23,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 23:12:23,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2020-10-13 23:12:23,773 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 18 states. [2020-10-13 23:12:24,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:12:24,704 INFO L93 Difference]: Finished difference Result 203 states and 235 transitions. [2020-10-13 23:12:24,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 23:12:24,705 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 145 [2020-10-13 23:12:24,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:12:24,707 INFO L225 Difference]: With dead ends: 203 [2020-10-13 23:12:24,707 INFO L226 Difference]: Without dead ends: 164 [2020-10-13 23:12:24,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=366, Invalid=690, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 23:12:24,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-13 23:12:24,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 108. [2020-10-13 23:12:24,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-13 23:12:24,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2020-10-13 23:12:24,730 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 145 [2020-10-13 23:12:24,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:12:24,731 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2020-10-13 23:12:24,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 23:12:24,731 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2020-10-13 23:12:24,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-13 23:12:24,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:12:24,734 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:12:24,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 23:12:24,734 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:12:24,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:12:24,735 INFO L82 PathProgramCache]: Analyzing trace with hash 824738144, now seen corresponding path program 14 times [2020-10-13 23:12:24,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:12:24,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148183948] [2020-10-13 23:12:24,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:12:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:24,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:26,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:27,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 23:12:56,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:12:56,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31323 [2020-10-13 23:12:56,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 23:12:56,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:12:56,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-13 23:12:56,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:12:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:12:56,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:56,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:12:56,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:12:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:12:56,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:12:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:12:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:12:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:12:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 23:12:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 23:12:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 23:12:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 23:12:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 23:12:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 23:12:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 23:12:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 23:12:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 23:12:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:56,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:56,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:12:56,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:12:56,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:12:56,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:12:56,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:12:56,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:12:56,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:12:56,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:12:56,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:12:56,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:12:56,395 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2020-10-13 23:12:56,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1148183948] [2020-10-13 23:12:56,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:12:56,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 23:12:56,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585000872] [2020-10-13 23:12:56,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 23:12:56,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:12:56,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 23:12:56,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=202, Unknown=0, NotChecked=0, Total=342 [2020-10-13 23:12:56,398 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand 19 states. [2020-10-13 23:12:57,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:12:57,344 INFO L93 Difference]: Finished difference Result 215 states and 249 transitions. [2020-10-13 23:12:57,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 23:12:57,345 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 155 [2020-10-13 23:12:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:12:57,348 INFO L225 Difference]: With dead ends: 215 [2020-10-13 23:12:57,348 INFO L226 Difference]: Without dead ends: 174 [2020-10-13 23:12:57,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=414, Invalid=776, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 23:12:57,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-13 23:12:57,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 114. [2020-10-13 23:12:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-13 23:12:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2020-10-13 23:12:57,358 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 155 [2020-10-13 23:12:57,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:12:57,359 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2020-10-13 23:12:57,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 23:12:57,359 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2020-10-13 23:12:57,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-13 23:12:57,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:12:57,361 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:12:57,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 23:12:57,361 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:12:57,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:12:57,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1579235713, now seen corresponding path program 15 times [2020-10-13 23:12:57,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:12:57,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316912094] [2020-10-13 23:12:57,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:12:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:12:57,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:12:59,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:00,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:49,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:49,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-13 23:13:49,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:13:49,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52312 [2020-10-13 23:13:49,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:49,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 23:13:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:13:49,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-13 23:13:49,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:49,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:13:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:49,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:49,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:49,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:13:49,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:49,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:13:49,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:49,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:49,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:13:49,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:49,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:13:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:49,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:49,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:49,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:49,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:49,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:49,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:49,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:49,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:49,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:49,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:49,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:49,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:13:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:49,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:49,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:49,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:49,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:49,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:49,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:49,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:49,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:49,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:13:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:49,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:49,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:49,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:49,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:49,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:49,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:49,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:49,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:49,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:49,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:49,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:49,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 23:13:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:49,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:49,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:49,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:49,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:49,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:49,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:49,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:49,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:49,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:49,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:49,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:49,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:13:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:49,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:49,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:49,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:49,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:49,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:13:49,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:49,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:49,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:49,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 23:13:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:49,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:49,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:49,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:49,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:49,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:49,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:49,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:49,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:49,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:49,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:49,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:49,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 23:13:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:49,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:49,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:49,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:49,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:49,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:49,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:49,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:49,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:49,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:50,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:50,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:50,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 23:13:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:50,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:50,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:50,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:50,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:50,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:50,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:50,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:50,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:50,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:50,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:50,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:50,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 23:13:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:50,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:50,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:50,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:50,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:50,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:50,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:50,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:50,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:50,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 23:13:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:50,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:50,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:50,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:50,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:50,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:50,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:50,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:50,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:50,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 23:13:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:50,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:50,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:50,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:50,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:50,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:50,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:50,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:50,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:50,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 23:13:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:50,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:50,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:50,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:50,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:50,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:50,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:50,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:50,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:50,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:50,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:50,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:50,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 23:13:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:50,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:50,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:50,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:50,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:50,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:50,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:50,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:50,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:50,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:50,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:50,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:50,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 23:13:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:50,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:50,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:50,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:50,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:50,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:50,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:50,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:50,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:50,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-13 23:13:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:50,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:50,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:13:50,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:13:50,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:13:50,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:13:50,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:13:50,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:13:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:13:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:13:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:13:50,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:13:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2020-10-13 23:13:50,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316912094] [2020-10-13 23:13:50,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:13:50,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-13 23:13:50,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587900745] [2020-10-13 23:13:50,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 23:13:50,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:13:50,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 23:13:50,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=223, Unknown=0, NotChecked=0, Total=380 [2020-10-13 23:13:50,054 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 20 states. [2020-10-13 23:13:51,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:13:51,046 INFO L93 Difference]: Finished difference Result 227 states and 263 transitions. [2020-10-13 23:13:51,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 23:13:51,046 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 165 [2020-10-13 23:13:51,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:13:51,049 INFO L225 Difference]: With dead ends: 227 [2020-10-13 23:13:51,049 INFO L226 Difference]: Without dead ends: 184 [2020-10-13 23:13:51,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=867, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 23:13:51,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-13 23:13:51,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 120. [2020-10-13 23:13:51,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-13 23:13:51,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 137 transitions. [2020-10-13 23:13:51,061 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 137 transitions. Word has length 165 [2020-10-13 23:13:51,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:13:51,062 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 137 transitions. [2020-10-13 23:13:51,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 23:13:51,062 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 137 transitions. [2020-10-13 23:13:51,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 23:13:51,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:13:51,064 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:13:51,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 23:13:51,065 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:13:51,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:13:51,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1967960734, now seen corresponding path program 16 times [2020-10-13 23:13:51,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:13:51,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693226257] [2020-10-13 23:13:51,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:13:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:13:51,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:55,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:13:56,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking...