/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/standard_copyInit_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 09:54:50,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 09:54:50,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 09:54:50,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 09:54:50,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 09:54:50,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 09:54:50,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 09:54:50,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 09:54:50,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 09:54:50,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 09:54:50,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 09:54:50,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 09:54:50,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 09:54:50,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 09:54:50,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 09:54:50,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 09:54:50,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 09:54:50,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 09:54:50,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 09:54:50,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 09:54:50,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 09:54:50,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 09:54:50,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 09:54:50,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 09:54:50,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 09:54:50,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 09:54:50,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 09:54:50,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 09:54:50,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 09:54:50,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 09:54:50,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 09:54:50,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 09:54:50,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 09:54:50,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 09:54:50,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 09:54:50,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 09:54:50,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 09:54:50,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 09:54:50,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 09:54:50,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 09:54:50,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 09:54:50,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 09:54:50,248 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 09:54:50,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 09:54:50,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 09:54:50,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 09:54:50,249 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 09:54:50,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 09:54:50,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 09:54:50,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 09:54:50,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 09:54:50,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 09:54:50,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 09:54:50,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 09:54:50,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 09:54:50,251 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 09:54:50,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 09:54:50,252 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 09:54:50,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 09:54:50,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 09:54:50,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 09:54:50,252 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 09:54:50,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 09:54:50,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 09:54:50,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 09:54:50,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 09:54:50,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 09:54:50,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 09:54:50,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 09:54:50,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 09:54:50,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 09:54:50,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 09:54:50,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 09:54:50,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 09:54:50,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 09:54:50,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 09:54:50,574 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 09:54:50,575 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copyInit_ground.i [2020-10-12 09:54:50,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88587ac8f/e743dcb422c34b57a0388c1d3a182fc1/FLAG0592c8f0c [2020-10-12 09:54:51,067 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 09:54:51,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/standard_copyInit_ground.i [2020-10-12 09:54:51,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88587ac8f/e743dcb422c34b57a0388c1d3a182fc1/FLAG0592c8f0c [2020-10-12 09:54:51,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88587ac8f/e743dcb422c34b57a0388c1d3a182fc1 [2020-10-12 09:54:51,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 09:54:51,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 09:54:51,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 09:54:51,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 09:54:51,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 09:54:51,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:54:51" (1/1) ... [2020-10-12 09:54:51,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@530cd126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:51, skipping insertion in model container [2020-10-12 09:54:51,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:54:51" (1/1) ... [2020-10-12 09:54:51,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 09:54:51,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 09:54:51,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 09:54:51,769 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 09:54:51,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 09:54:51,804 INFO L208 MainTranslator]: Completed translation [2020-10-12 09:54:51,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:51 WrapperNode [2020-10-12 09:54:51,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 09:54:51,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 09:54:51,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 09:54:51,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 09:54:51,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:51" (1/1) ... [2020-10-12 09:54:51,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:51" (1/1) ... [2020-10-12 09:54:51,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:51" (1/1) ... [2020-10-12 09:54:51,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:51" (1/1) ... [2020-10-12 09:54:51,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:51" (1/1) ... [2020-10-12 09:54:51,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:51" (1/1) ... [2020-10-12 09:54:51,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:51" (1/1) ... [2020-10-12 09:54:51,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 09:54:51,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 09:54:51,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 09:54:51,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 09:54:51,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 09:54:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 09:54:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 09:54:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 09:54:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 09:54:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 09:54:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 09:54:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 09:54:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 09:54:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 09:54:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 09:54:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 09:54:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 09:54:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 09:54:52,219 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 09:54:52,220 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-12 09:54:52,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:54:52 BoogieIcfgContainer [2020-10-12 09:54:52,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 09:54:52,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 09:54:52,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 09:54:52,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 09:54:52,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 09:54:51" (1/3) ... [2020-10-12 09:54:52,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be8d6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:54:52, skipping insertion in model container [2020-10-12 09:54:52,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:54:51" (2/3) ... [2020-10-12 09:54:52,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be8d6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:54:52, skipping insertion in model container [2020-10-12 09:54:52,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:54:52" (3/3) ... [2020-10-12 09:54:52,239 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copyInit_ground.i [2020-10-12 09:54:52,250 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 09:54:52,261 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 09:54:52,276 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 09:54:52,295 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 09:54:52,295 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 09:54:52,295 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 09:54:52,295 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 09:54:52,295 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 09:54:52,296 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 09:54:52,296 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 09:54:52,296 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 09:54:52,311 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-12 09:54:52,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-12 09:54:52,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:54:52,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:54:52,319 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:54:52,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:54:52,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1085876810, now seen corresponding path program 1 times [2020-10-12 09:54:52,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:54:52,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113237662] [2020-10-12 09:54:52,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:54:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:52,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:52,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:52,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:52,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 09:54:52,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:54:52,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-12 09:54:52,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:52,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:54:52,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:54:52,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 09:54:52,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 09:54:52,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:54:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:52,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:52,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:52,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:54:52,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:52,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 09:54:52,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:54:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:52,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:54:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 09:54:52,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113237662] [2020-10-12 09:54:52,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 09:54:52,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 09:54:52,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471918834] [2020-10-12 09:54:52,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 09:54:52,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:54:52,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 09:54:52,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 09:54:52,808 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 4 states. [2020-10-12 09:54:53,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:54:53,011 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2020-10-12 09:54:53,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 09:54:53,013 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-12 09:54:53,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:54:53,024 INFO L225 Difference]: With dead ends: 48 [2020-10-12 09:54:53,025 INFO L226 Difference]: Without dead ends: 24 [2020-10-12 09:54:53,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 09:54:53,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-12 09:54:53,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-10-12 09:54:53,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-12 09:54:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2020-10-12 09:54:53,065 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 15 [2020-10-12 09:54:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:54:53,066 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2020-10-12 09:54:53,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 09:54:53,066 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-10-12 09:54:53,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-12 09:54:53,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:54:53,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:54:53,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 09:54:53,068 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:54:53,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:54:53,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1258895644, now seen corresponding path program 1 times [2020-10-12 09:54:53,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:54:53,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596256469] [2020-10-12 09:54:53,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:54:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:53,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:53,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:53,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:53,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:53,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 09:54:53,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:54:53,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567 [2020-10-12 09:54:53,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 09:54:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:54:53,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 09:54:53,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:54:53,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:54:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:53,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:53,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:53,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:54:53,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:53,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 09:54:53,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:53,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:53,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:54:53,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:53,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:53,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 09:54:54,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596256469] [2020-10-12 09:54:54,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:54:54,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 09:54:54,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423463501] [2020-10-12 09:54:54,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 09:54:54,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:54:54,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 09:54:54,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-12 09:54:54,006 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 11 states. [2020-10-12 09:54:54,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:54:54,347 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-10-12 09:54:54,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 09:54:54,348 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-10-12 09:54:54,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:54:54,350 INFO L225 Difference]: With dead ends: 34 [2020-10-12 09:54:54,350 INFO L226 Difference]: Without dead ends: 32 [2020-10-12 09:54:54,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2020-10-12 09:54:54,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-12 09:54:54,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2020-10-12 09:54:54,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-12 09:54:54,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-10-12 09:54:54,361 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 18 [2020-10-12 09:54:54,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:54:54,361 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-10-12 09:54:54,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 09:54:54,362 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-10-12 09:54:54,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-12 09:54:54,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:54:54,363 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:54:54,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 09:54:54,363 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:54:54,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:54:54,364 INFO L82 PathProgramCache]: Analyzing trace with hash -943488101, now seen corresponding path program 1 times [2020-10-12 09:54:54,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:54:54,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457058309] [2020-10-12 09:54:54,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:54:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:54,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:54,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:54,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:54,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 09:54:54,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:54:54,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-12 09:54:54,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:54,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 09:54:54,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:54:54,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 09:54:54,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:54:54,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:54:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:54,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:54,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:54,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:54:54,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:54,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:54:54,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:54:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:54,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:54:54,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-12 09:54:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:54,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:54,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:54,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:54:54,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:54,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:54:54,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:54,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:54,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:54:54,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:54,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:54:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 09:54:54,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457058309] [2020-10-12 09:54:54,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:54:54,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 09:54:54,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409187315] [2020-10-12 09:54:54,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 09:54:54,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:54:54,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 09:54:54,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 09:54:54,618 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 5 states. [2020-10-12 09:54:54,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:54:54,680 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2020-10-12 09:54:54,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 09:54:54,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-12 09:54:54,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:54:54,684 INFO L225 Difference]: With dead ends: 54 [2020-10-12 09:54:54,684 INFO L226 Difference]: Without dead ends: 33 [2020-10-12 09:54:54,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 09:54:54,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-12 09:54:54,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-12 09:54:54,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-12 09:54:54,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2020-10-12 09:54:54,701 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 26 [2020-10-12 09:54:54,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:54:54,702 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2020-10-12 09:54:54,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 09:54:54,702 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2020-10-12 09:54:54,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-12 09:54:54,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:54:54,703 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:54:54,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 09:54:54,703 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:54:54,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:54:54,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1427172601, now seen corresponding path program 2 times [2020-10-12 09:54:54,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:54:54,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732112462] [2020-10-12 09:54:54,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:54:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:54,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:54,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:54,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:55,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:55,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-12 09:54:55,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:54:55,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-10-12 09:54:55,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:55,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 09:54:55,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:54:55,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 09:54:55,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:55,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:54:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:55,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:55,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:55,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:54:55,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:55,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:54:55,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:55,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:55,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:54:55,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:55,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:54:55,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 09:54:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:55,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:55,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:55,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:54:55,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:55,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:54:55,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:54:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:54:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:54:55,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:54:55,585 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 09:54:55,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732112462] [2020-10-12 09:54:55,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:54:55,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 09:54:55,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089109659] [2020-10-12 09:54:55,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 09:54:55,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:54:55,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 09:54:55,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-12 09:54:55,588 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 14 states. [2020-10-12 09:54:56,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:54:56,168 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2020-10-12 09:54:56,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 09:54:56,168 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 29 [2020-10-12 09:54:56,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:54:56,170 INFO L225 Difference]: With dead ends: 45 [2020-10-12 09:54:56,170 INFO L226 Difference]: Without dead ends: 43 [2020-10-12 09:54:56,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2020-10-12 09:54:56,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-12 09:54:56,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2020-10-12 09:54:56,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-12 09:54:56,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2020-10-12 09:54:56,180 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 29 [2020-10-12 09:54:56,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:54:56,180 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2020-10-12 09:54:56,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 09:54:56,180 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2020-10-12 09:54:56,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-12 09:54:56,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:54:56,182 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:54:56,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 09:54:56,182 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:54:56,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:54:56,183 INFO L82 PathProgramCache]: Analyzing trace with hash -736080, now seen corresponding path program 3 times [2020-10-12 09:54:56,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:54:56,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891632443] [2020-10-12 09:54:56,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:54:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:56,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:56,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:56,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:56,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 09:54:56,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:54:56,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-10-12 09:54:56,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:56,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 09:54:56,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:54:56,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 09:54:56,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:56,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:54:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:56,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:56,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:56,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:54:56,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:56,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:54:56,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:56,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:56,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:54:56,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:56,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:54:56,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 09:54:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:56,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:56,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:56,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:54:56,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:56,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:54:56,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:56,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:56,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:54:56,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:56,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:54:56,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 09:54:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:56,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:56,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:56,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:54:56,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:56,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:54:56,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:56,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:54:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:54:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-12 09:54:56,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891632443] [2020-10-12 09:54:56,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:54:56,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 09:54:56,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898117992] [2020-10-12 09:54:56,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 09:54:56,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:54:56,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 09:54:56,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 09:54:56,613 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 6 states. [2020-10-12 09:54:56,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:54:56,713 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2020-10-12 09:54:56,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 09:54:56,713 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-10-12 09:54:56,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:54:56,715 INFO L225 Difference]: With dead ends: 75 [2020-10-12 09:54:56,715 INFO L226 Difference]: Without dead ends: 44 [2020-10-12 09:54:56,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 09:54:56,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-12 09:54:56,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2020-10-12 09:54:56,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-12 09:54:56,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2020-10-12 09:54:56,725 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 37 [2020-10-12 09:54:56,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:54:56,725 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2020-10-12 09:54:56,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 09:54:56,726 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2020-10-12 09:54:56,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 09:54:56,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:54:56,727 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:54:56,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 09:54:56,727 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:54:56,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:54:56,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1512925774, now seen corresponding path program 4 times [2020-10-12 09:54:56,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:54:56,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207164387] [2020-10-12 09:54:56,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:54:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:56,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:56,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:57,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:57,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:57,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 09:54:57,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:54:57,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1140 [2020-10-12 09:54:57,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:57,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 09:54:57,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:54:57,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 09:54:57,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:58,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:54:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:58,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:58,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:58,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:54:58,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:58,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:54:58,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:54:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:58,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:58,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 09:54:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:58,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:58,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:58,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:54:58,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:58,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:54:58,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:54:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:54:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:54:58,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:58,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 09:54:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:58,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:58,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:58,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:54:58,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:58,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:54:58,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:54:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:54:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:54:58,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:58,337 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 09:54:58,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207164387] [2020-10-12 09:54:58,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:54:58,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 09:54:58,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546028591] [2020-10-12 09:54:58,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 09:54:58,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:54:58,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 09:54:58,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2020-10-12 09:54:58,339 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 17 states. [2020-10-12 09:54:59,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:54:59,052 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2020-10-12 09:54:59,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 09:54:59,053 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 40 [2020-10-12 09:54:59,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:54:59,054 INFO L225 Difference]: With dead ends: 56 [2020-10-12 09:54:59,054 INFO L226 Difference]: Without dead ends: 54 [2020-10-12 09:54:59,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2020-10-12 09:54:59,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-12 09:54:59,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2020-10-12 09:54:59,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-12 09:54:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-10-12 09:54:59,065 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 40 [2020-10-12 09:54:59,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:54:59,066 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-10-12 09:54:59,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 09:54:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-10-12 09:54:59,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-12 09:54:59,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:54:59,068 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:54:59,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 09:54:59,069 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:54:59,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:54:59,069 INFO L82 PathProgramCache]: Analyzing trace with hash -839049979, now seen corresponding path program 5 times [2020-10-12 09:54:59,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:54:59,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021205798] [2020-10-12 09:54:59,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:54:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:59,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:59,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:59,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:59,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 09:54:59,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:54:59,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 655 [2020-10-12 09:54:59,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 09:54:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 09:54:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 09:54:59,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:59,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:54:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:59,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:59,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:59,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:54:59,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:59,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:54:59,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:59,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:54:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:59,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:59,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 09:54:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:59,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:59,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:59,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:54:59,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:59,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:54:59,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:54:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:59,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:59,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 09:54:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:59,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:59,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:59,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:54:59,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:59,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:54:59,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:54:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:59,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:59,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 09:54:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:59,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:59,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:54:59,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:54:59,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:54:59,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:54:59,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:54:59,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:54:59,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:54:59,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:54:59,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:54:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-12 09:54:59,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021205798] [2020-10-12 09:54:59,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:54:59,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 09:54:59,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847831291] [2020-10-12 09:54:59,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 09:54:59,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:54:59,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 09:54:59,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 09:54:59,806 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 7 states. [2020-10-12 09:54:59,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:54:59,887 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2020-10-12 09:54:59,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 09:54:59,888 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-10-12 09:54:59,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:54:59,889 INFO L225 Difference]: With dead ends: 96 [2020-10-12 09:54:59,889 INFO L226 Difference]: Without dead ends: 55 [2020-10-12 09:54:59,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 09:54:59,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-12 09:54:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2020-10-12 09:54:59,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-12 09:54:59,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-10-12 09:54:59,900 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 48 [2020-10-12 09:54:59,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:54:59,900 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-10-12 09:54:59,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 09:54:59,901 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-10-12 09:54:59,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 09:54:59,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:54:59,902 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:54:59,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 09:54:59,902 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:54:59,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:54:59,903 INFO L82 PathProgramCache]: Analyzing trace with hash -316972189, now seen corresponding path program 6 times [2020-10-12 09:54:59,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:54:59,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809192841] [2020-10-12 09:54:59,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:54:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:54:59,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:54:59,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:00,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:01,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:01,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 09:55:01,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:55:01,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1726 [2020-10-12 09:55:01,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:01,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 09:55:01,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:55:01,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 09:55:01,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:02,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:02,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:02,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:02,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:02,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:02,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:02,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:02,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:02,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 09:55:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:02,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:02,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:02,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:02,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:02,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:55:02,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:02,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:02,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:02,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:02,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:02,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 09:55:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:02,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:02,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:02,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:02,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:02,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:55:02,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:02,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:02,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:02,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:02,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:55:02,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:55:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:02,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:02,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:02,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:02,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:02,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:55:02,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:02,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:02,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:02,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:02,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:02,148 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 09:55:02,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809192841] [2020-10-12 09:55:02,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:02,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 09:55:02,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5401297] [2020-10-12 09:55:02,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 09:55:02,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:02,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 09:55:02,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-10-12 09:55:02,152 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand 20 states. [2020-10-12 09:55:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:02,956 INFO L93 Difference]: Finished difference Result 67 states and 69 transitions. [2020-10-12 09:55:02,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 09:55:02,957 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 51 [2020-10-12 09:55:02,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:02,958 INFO L225 Difference]: With dead ends: 67 [2020-10-12 09:55:02,958 INFO L226 Difference]: Without dead ends: 65 [2020-10-12 09:55:02,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2020-10-12 09:55:02,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-12 09:55:02,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2020-10-12 09:55:02,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-12 09:55:02,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2020-10-12 09:55:02,969 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 51 [2020-10-12 09:55:02,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:02,969 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2020-10-12 09:55:02,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 09:55:02,970 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2020-10-12 09:55:02,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-12 09:55:02,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:02,971 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:02,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 09:55:02,971 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:02,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:02,972 INFO L82 PathProgramCache]: Analyzing trace with hash -578866918, now seen corresponding path program 7 times [2020-10-12 09:55:02,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:02,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979907766] [2020-10-12 09:55:02,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:02,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:03,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:03,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:03,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 09:55:03,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:55:03,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-10-12 09:55:03,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:03,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 09:55:03,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:55:03,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:03,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:03,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:03,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:03,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:03,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:03,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:03,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:03,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:03,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:03,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:03,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:03,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:03,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 09:55:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:03,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:03,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:03,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:03,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:03,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:03,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:03,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:03,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 09:55:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:03,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:03,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:03,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:03,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:03,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:03,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:03,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:03,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:03,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:03,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:55:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:03,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:03,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:03,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:03,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:03,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:03,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:03,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:03,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:03,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:03,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:03,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:55:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:03,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:03,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:03,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:03,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:03,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:03,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-12 09:55:03,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979907766] [2020-10-12 09:55:03,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:03,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 09:55:03,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009758202] [2020-10-12 09:55:03,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 09:55:03,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:03,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 09:55:03,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 09:55:03,874 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 8 states. [2020-10-12 09:55:03,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:03,976 INFO L93 Difference]: Finished difference Result 117 states and 122 transitions. [2020-10-12 09:55:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 09:55:03,977 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-10-12 09:55:03,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:03,979 INFO L225 Difference]: With dead ends: 117 [2020-10-12 09:55:03,979 INFO L226 Difference]: Without dead ends: 66 [2020-10-12 09:55:03,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 09:55:03,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-12 09:55:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2020-10-12 09:55:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-12 09:55:04,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2020-10-12 09:55:04,008 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 59 [2020-10-12 09:55:04,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:04,008 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2020-10-12 09:55:04,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 09:55:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2020-10-12 09:55:04,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-12 09:55:04,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:04,014 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:04,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 09:55:04,014 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:04,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:04,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1141726280, now seen corresponding path program 8 times [2020-10-12 09:55:04,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:04,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55766231] [2020-10-12 09:55:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:04,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:04,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:05,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:06,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:06,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-12 09:55:06,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:55:06,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2704 [2020-10-12 09:55:06,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:06,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 09:55:06,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:55:06,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 09:55:06,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:55:07,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:07,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:07,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:07,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:07,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:07,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:55:07,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:07,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:07,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:07,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-12 09:55:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:07,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:07,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:07,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:07,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:07,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:55:07,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:07,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:07,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:07,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:07,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:55:07,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 09:55:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:07,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:07,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:07,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:07,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:07,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:55:07,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:07,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:07,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 09:55:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:07,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:08,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:08,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:08,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:08,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 09:55:08,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:08,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:08,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:08,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:08,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 09:55:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:08,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:08,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:08,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:08,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:08,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 09:55:08,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:08,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:08,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:08,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:08,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:08,037 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 8 proven. 72 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-12 09:55:08,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55766231] [2020-10-12 09:55:08,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:08,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-12 09:55:08,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068853867] [2020-10-12 09:55:08,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 09:55:08,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:08,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 09:55:08,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2020-10-12 09:55:08,040 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand 23 states. [2020-10-12 09:55:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:09,048 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2020-10-12 09:55:09,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 09:55:09,049 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 62 [2020-10-12 09:55:09,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:09,051 INFO L225 Difference]: With dead ends: 78 [2020-10-12 09:55:09,051 INFO L226 Difference]: Without dead ends: 76 [2020-10-12 09:55:09,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=112, Invalid=1010, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 09:55:09,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-12 09:55:09,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2020-10-12 09:55:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-12 09:55:09,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2020-10-12 09:55:09,081 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 62 [2020-10-12 09:55:09,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:09,082 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2020-10-12 09:55:09,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 09:55:09,082 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2020-10-12 09:55:09,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-12 09:55:09,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:09,088 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:09,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 09:55:09,088 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:09,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:09,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1003441263, now seen corresponding path program 9 times [2020-10-12 09:55:09,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:09,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270953347] [2020-10-12 09:55:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:09,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:09,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:10,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:10,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-12 09:55:10,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:55:10,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1588 [2020-10-12 09:55:10,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 09:55:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:55:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 09:55:10,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:10,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:10,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:10,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:10,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:10,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:10,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:10,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:10,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:10,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-12 09:55:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:10,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:10,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:10,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:10,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:10,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:10,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:10,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:10,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 09:55:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:10,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:10,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:10,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:10,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:10,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:10,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:10,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:10,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:10,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:10,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:10,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 09:55:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:10,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:10,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:10,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:10,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:10,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:10,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:10,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:10,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:10,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:10,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:10,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 09:55:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:10,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:10,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:10,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:10,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:10,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:10,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:10,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:10,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:10,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:10,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:10,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 09:55:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:10,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:10,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:10,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:10,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:10,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:10,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:10,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:10,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:55:10,812 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-12 09:55:10,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270953347] [2020-10-12 09:55:10,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:10,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 09:55:10,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769041471] [2020-10-12 09:55:10,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 09:55:10,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:10,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 09:55:10,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-12 09:55:10,816 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand 9 states. [2020-10-12 09:55:10,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:10,920 INFO L93 Difference]: Finished difference Result 138 states and 143 transitions. [2020-10-12 09:55:10,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 09:55:10,920 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-12 09:55:10,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:10,921 INFO L225 Difference]: With dead ends: 138 [2020-10-12 09:55:10,921 INFO L226 Difference]: Without dead ends: 77 [2020-10-12 09:55:10,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-12 09:55:10,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-12 09:55:10,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-10-12 09:55:10,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-12 09:55:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2020-10-12 09:55:10,943 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 70 [2020-10-12 09:55:10,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:10,943 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2020-10-12 09:55:10,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 09:55:10,943 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-10-12 09:55:10,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-12 09:55:10,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:10,947 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:10,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 09:55:10,947 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:10,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:10,948 INFO L82 PathProgramCache]: Analyzing trace with hash 343142349, now seen corresponding path program 10 times [2020-10-12 09:55:10,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:10,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965487737] [2020-10-12 09:55:10,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:10,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:10,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:12,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:13,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:13,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 09:55:13,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:55:13,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2802 [2020-10-12 09:55:13,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:13,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 09:55:13,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:55:13,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 09:55:13,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:55:14,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:14,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:14,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:14,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:14,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:14,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:14,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:14,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:14,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:14,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 09:55:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:14,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:14,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:14,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:14,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:14,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:55:14,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:14,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:14,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:14,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:14,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:14,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 09:55:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:14,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:14,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:14,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:14,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:14,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:55:14,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:14,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:14,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:55:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:14,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:14,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:14,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:14,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:14,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:55:14,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:14,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:14,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:14,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:55:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:14,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:14,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:14,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:14,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:14,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:55:14,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:14,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:14,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:14,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:14,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:14,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:55:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:14,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:14,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:14,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:14,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:14,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:14,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:14,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:14,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 10 proven. 107 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-12 09:55:14,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965487737] [2020-10-12 09:55:14,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:14,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-12 09:55:14,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407818772] [2020-10-12 09:55:14,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-12 09:55:14,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:14,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-12 09:55:14,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2020-10-12 09:55:14,753 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand 27 states. [2020-10-12 09:55:16,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:16,406 INFO L93 Difference]: Finished difference Result 89 states and 91 transitions. [2020-10-12 09:55:16,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 09:55:16,407 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 73 [2020-10-12 09:55:16,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:16,408 INFO L225 Difference]: With dead ends: 89 [2020-10-12 09:55:16,408 INFO L226 Difference]: Without dead ends: 87 [2020-10-12 09:55:16,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=131, Invalid=1429, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 09:55:16,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-12 09:55:16,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2020-10-12 09:55:16,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-12 09:55:16,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 86 transitions. [2020-10-12 09:55:16,420 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 86 transitions. Word has length 73 [2020-10-12 09:55:16,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:16,420 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 86 transitions. [2020-10-12 09:55:16,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-12 09:55:16,420 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2020-10-12 09:55:16,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 09:55:16,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:16,421 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:16,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 09:55:16,422 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:16,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:16,422 INFO L82 PathProgramCache]: Analyzing trace with hash -35540092, now seen corresponding path program 11 times [2020-10-12 09:55:16,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:16,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618669563] [2020-10-12 09:55:16,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:16,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:16,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:18,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:18,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 09:55:18,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:55:18,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1721 [2020-10-12 09:55:18,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:18,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 09:55:18,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 09:55:18,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 09:55:18,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:18,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:18,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:18,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:18,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:18,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:18,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:18,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:18,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:18,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:18,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:18,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:18,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 09:55:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:18,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:18,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:18,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:18,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:18,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:18,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:18,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:18,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 09:55:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:18,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:18,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:18,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:18,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:18,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:18,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:18,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:18,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:18,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:18,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:18,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:55:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:18,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:18,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:18,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:18,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:18,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:18,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:18,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:18,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:55:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:18,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:18,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:18,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:18,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:18,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:18,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:18,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:18,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:18,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:18,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:55:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:18,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:18,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:18,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:18,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:18,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:18,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:18,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:18,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:18,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 09:55:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:18,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:18,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:18,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:18,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:18,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:18,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:18,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:18,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:18,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:18,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-10-12 09:55:18,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618669563] [2020-10-12 09:55:18,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:18,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 09:55:18,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805881877] [2020-10-12 09:55:18,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 09:55:18,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:18,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 09:55:18,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-12 09:55:18,260 INFO L87 Difference]: Start difference. First operand 84 states and 86 transitions. Second operand 10 states. [2020-10-12 09:55:18,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:18,351 INFO L93 Difference]: Finished difference Result 159 states and 164 transitions. [2020-10-12 09:55:18,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 09:55:18,352 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-12 09:55:18,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:18,353 INFO L225 Difference]: With dead ends: 159 [2020-10-12 09:55:18,353 INFO L226 Difference]: Without dead ends: 88 [2020-10-12 09:55:18,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-12 09:55:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-12 09:55:18,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2020-10-12 09:55:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-12 09:55:18,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 89 transitions. [2020-10-12 09:55:18,365 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 89 transitions. Word has length 81 [2020-10-12 09:55:18,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:18,365 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 89 transitions. [2020-10-12 09:55:18,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 09:55:18,365 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 89 transitions. [2020-10-12 09:55:18,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-12 09:55:18,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:18,366 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:18,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 09:55:18,366 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:18,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:18,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1621193506, now seen corresponding path program 12 times [2020-10-12 09:55:18,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:18,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951028538] [2020-10-12 09:55:18,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:18,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:18,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:19,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:22,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:22,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-12 09:55:22,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:55:22,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4063 [2020-10-12 09:55:22,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:22,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-12 09:55:22,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:55:22,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 09:55:22,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:23,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:23,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:23,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:23,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:23,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:23,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:23,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:23,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 09:55:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:23,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:23,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:23,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:23,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:23,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:23,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:23,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:23,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 09:55:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:23,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:23,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:23,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:23,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:23,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:23,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:23,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:23,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 09:55:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:23,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:23,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:23,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:23,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:23,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:23,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 09:55:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:23,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:23,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:23,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:23,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:23,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:23,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:23,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:23,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 09:55:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:23,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:23,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:23,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:23,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:23,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:23,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:23,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:23,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:23,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:23,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:23,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 09:55:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:23,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:23,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:23,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:23,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:23,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:23,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:23,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:23,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:23,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 12 proven. 149 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-12 09:55:23,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951028538] [2020-10-12 09:55:23,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:23,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-12 09:55:23,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742821994] [2020-10-12 09:55:23,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-12 09:55:23,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:23,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-12 09:55:23,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2020-10-12 09:55:23,743 INFO L87 Difference]: Start difference. First operand 87 states and 89 transitions. Second operand 29 states. [2020-10-12 09:55:25,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:25,450 INFO L93 Difference]: Finished difference Result 100 states and 102 transitions. [2020-10-12 09:55:25,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-12 09:55:25,451 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 84 [2020-10-12 09:55:25,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:25,452 INFO L225 Difference]: With dead ends: 100 [2020-10-12 09:55:25,452 INFO L226 Difference]: Without dead ends: 98 [2020-10-12 09:55:25,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 17 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=145, Invalid=1577, Unknown=0, NotChecked=0, Total=1722 [2020-10-12 09:55:25,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-12 09:55:25,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 95. [2020-10-12 09:55:25,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-12 09:55:25,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 97 transitions. [2020-10-12 09:55:25,472 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 97 transitions. Word has length 84 [2020-10-12 09:55:25,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:25,472 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 97 transitions. [2020-10-12 09:55:25,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-12 09:55:25,473 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 97 transitions. [2020-10-12 09:55:25,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 09:55:25,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:25,474 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:25,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 09:55:25,474 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:25,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:25,475 INFO L82 PathProgramCache]: Analyzing trace with hash 211096025, now seen corresponding path program 13 times [2020-10-12 09:55:25,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:25,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514779597] [2020-10-12 09:55:25,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:25,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:25,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:27,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:27,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 09:55:27,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:55:27,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2113 [2020-10-12 09:55:27,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 09:55:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:55:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 09:55:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:27,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:27,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:27,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:27,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:27,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:27,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:27,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:27,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:27,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:27,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:27,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:27,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 09:55:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:27,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:27,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:27,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:27,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:27,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:27,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:27,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:27,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:27,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:27,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 09:55:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:27,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:27,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:27,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:27,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:27,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:27,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:27,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:27,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:27,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:27,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:27,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 09:55:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:27,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:27,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:27,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:27,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:27,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:27,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:27,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:27,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 09:55:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:27,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:27,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:27,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:27,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:27,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:27,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:27,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:27,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:27,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:27,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:27,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 09:55:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:27,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:27,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:27,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:27,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:27,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:27,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:27,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:27,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:27,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:27,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:27,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 09:55:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:27,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:27,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:27,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:27,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:27,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:27,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:27,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:27,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 09:55:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:27,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:27,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:27,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:27,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:27,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:27,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:27,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:27,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:27,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:27,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:27,731 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 14 proven. 28 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-10-12 09:55:27,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514779597] [2020-10-12 09:55:27,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:27,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 09:55:27,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191261997] [2020-10-12 09:55:27,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 09:55:27,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:27,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 09:55:27,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-12 09:55:27,734 INFO L87 Difference]: Start difference. First operand 95 states and 97 transitions. Second operand 11 states. [2020-10-12 09:55:27,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:27,884 INFO L93 Difference]: Finished difference Result 180 states and 185 transitions. [2020-10-12 09:55:27,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 09:55:27,886 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2020-10-12 09:55:27,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:27,887 INFO L225 Difference]: With dead ends: 180 [2020-10-12 09:55:27,887 INFO L226 Difference]: Without dead ends: 99 [2020-10-12 09:55:27,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-12 09:55:27,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-12 09:55:27,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2020-10-12 09:55:27,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-12 09:55:27,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2020-10-12 09:55:27,912 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 100 transitions. Word has length 92 [2020-10-12 09:55:27,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:27,912 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 100 transitions. [2020-10-12 09:55:27,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 09:55:27,913 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 100 transitions. [2020-10-12 09:55:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-12 09:55:27,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:27,914 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:27,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 09:55:27,915 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:27,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:27,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1674210761, now seen corresponding path program 14 times [2020-10-12 09:55:27,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:27,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070386920] [2020-10-12 09:55:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:27,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:27,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:30,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:31,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:31,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 09:55:31,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:55:31,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3671 [2020-10-12 09:55:31,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:31,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-12 09:55:31,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:55:31,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 09:55:31,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:32,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:32,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:32,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:32,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:32,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:32,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:32,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:32,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:32,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:32,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:32,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:32,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 09:55:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:32,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:32,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:32,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:32,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:32,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 09:55:32,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:32,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:32,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:32,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:32,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:32,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:55:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:32,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:32,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:32,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:32,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:32,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:32,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:32,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:32,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 09:55:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:32,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:32,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:32,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:32,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:32,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:32,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:32,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:32,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:32,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:32,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:32,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:55:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:32,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:32,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:32,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:32,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:32,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:32,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:32,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:32,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:55:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:32,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:32,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:32,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:32,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:32,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:32,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:32,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 09:55:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:32,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:32,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:32,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:32,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:55:32,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:32,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:32,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 09:55:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:32,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:32,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:32,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:32,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:32,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:32,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:33,024 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 14 proven. 198 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-12 09:55:33,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070386920] [2020-10-12 09:55:33,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:33,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-12 09:55:33,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190584600] [2020-10-12 09:55:33,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-12 09:55:33,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:33,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-12 09:55:33,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=922, Unknown=0, NotChecked=0, Total=992 [2020-10-12 09:55:33,029 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. Second operand 32 states. [2020-10-12 09:55:35,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:35,160 INFO L93 Difference]: Finished difference Result 111 states and 113 transitions. [2020-10-12 09:55:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 09:55:35,160 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 95 [2020-10-12 09:55:35,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:35,161 INFO L225 Difference]: With dead ends: 111 [2020-10-12 09:55:35,162 INFO L226 Difference]: Without dead ends: 109 [2020-10-12 09:55:35,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=151, Invalid=1919, Unknown=0, NotChecked=0, Total=2070 [2020-10-12 09:55:35,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-12 09:55:35,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2020-10-12 09:55:35,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-12 09:55:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 108 transitions. [2020-10-12 09:55:35,184 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 108 transitions. Word has length 95 [2020-10-12 09:55:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:35,185 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 108 transitions. [2020-10-12 09:55:35,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-12 09:55:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 108 transitions. [2020-10-12 09:55:35,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 09:55:35,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:35,186 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:35,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 09:55:35,190 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:35,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:35,191 INFO L82 PathProgramCache]: Analyzing trace with hash -415806482, now seen corresponding path program 15 times [2020-10-12 09:55:35,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:35,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699780828] [2020-10-12 09:55:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:35,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:35,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:37,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:37,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 09:55:37,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:55:37,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2357 [2020-10-12 09:55:37,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:37,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 09:55:37,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 09:55:37,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 09:55:37,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:37,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:37,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:37,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:37,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:37,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:37,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:37,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:37,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:37,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:37,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:37,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:37,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 09:55:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:37,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:37,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:37,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:37,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:37,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:37,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:37,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:37,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:55:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:37,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:37,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:37,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:37,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:37,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:37,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:37,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:37,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:37,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:37,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:37,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 09:55:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:37,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:37,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:37,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:37,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:37,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:37,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:37,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:37,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:37,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:37,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:37,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:55:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:37,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:37,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:37,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:37,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:37,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:37,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:37,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:37,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:55:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:37,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:37,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:37,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:37,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:37,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:37,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:37,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:37,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:37,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:37,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:37,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 09:55:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:37,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:37,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:37,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:37,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:37,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:37,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:37,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:37,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:37,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:37,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:37,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 09:55:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:37,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:37,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:37,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:37,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:37,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:37,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:37,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:37,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:37,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:37,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:37,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 09:55:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:37,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:37,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:37,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:37,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:37,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 09:55:37,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:37,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 16 proven. 64 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2020-10-12 09:55:37,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699780828] [2020-10-12 09:55:37,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:37,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 09:55:37,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017366363] [2020-10-12 09:55:37,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 09:55:37,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:37,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 09:55:37,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-12 09:55:37,702 INFO L87 Difference]: Start difference. First operand 106 states and 108 transitions. Second operand 12 states. [2020-10-12 09:55:37,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:37,861 INFO L93 Difference]: Finished difference Result 201 states and 206 transitions. [2020-10-12 09:55:37,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 09:55:37,862 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 103 [2020-10-12 09:55:37,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:37,863 INFO L225 Difference]: With dead ends: 201 [2020-10-12 09:55:37,863 INFO L226 Difference]: Without dead ends: 110 [2020-10-12 09:55:37,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-12 09:55:37,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-12 09:55:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2020-10-12 09:55:37,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-12 09:55:37,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 111 transitions. [2020-10-12 09:55:37,883 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 111 transitions. Word has length 103 [2020-10-12 09:55:37,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:37,883 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 111 transitions. [2020-10-12 09:55:37,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 09:55:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 111 transitions. [2020-10-12 09:55:37,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-12 09:55:37,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:37,884 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:37,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 09:55:37,885 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:37,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:37,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1626023796, now seen corresponding path program 16 times [2020-10-12 09:55:37,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:37,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327059278] [2020-10-12 09:55:37,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:37,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:37,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:40,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:42,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:42,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 09:55:42,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:55:42,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4833 [2020-10-12 09:55:42,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-12 09:55:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:55:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 09:55:42,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:44,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:44,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:44,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:44,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:44,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:44,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:44,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:44,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:44,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:44,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:44,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:44,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 09:55:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:44,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:44,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:44,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:44,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:44,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:44,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:44,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:44,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:44,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:44,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:44,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 09:55:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:44,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:44,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:44,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:44,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:44,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:44,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:44,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:44,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 09:55:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:44,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:44,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:44,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:44,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:44,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:44,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:44,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:44,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:44,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:44,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:44,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 09:55:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:44,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:44,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:44,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:44,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:44,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:44,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:44,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:44,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 09:55:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:44,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:44,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:44,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:44,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:44,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:44,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:44,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:44,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:44,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 09:55:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:44,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:44,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:44,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:44,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:44,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:44,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:44,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:44,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:44,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 09:55:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:44,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:44,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:44,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:44,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:44,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:44,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:44,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:44,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 09:55:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:44,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:44,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:44,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:44,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:44,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 16 proven. 254 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-12 09:55:44,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327059278] [2020-10-12 09:55:44,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:44,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-12 09:55:44,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672530180] [2020-10-12 09:55:44,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-12 09:55:44,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:44,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-12 09:55:44,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1105, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 09:55:44,438 INFO L87 Difference]: Start difference. First operand 109 states and 111 transitions. Second operand 35 states. [2020-10-12 09:55:46,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:46,409 INFO L93 Difference]: Finished difference Result 122 states and 124 transitions. [2020-10-12 09:55:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 09:55:46,410 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 106 [2020-10-12 09:55:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:46,412 INFO L225 Difference]: With dead ends: 122 [2020-10-12 09:55:46,412 INFO L226 Difference]: Without dead ends: 120 [2020-10-12 09:55:46,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=173, Invalid=2277, Unknown=0, NotChecked=0, Total=2450 [2020-10-12 09:55:46,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-12 09:55:46,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2020-10-12 09:55:46,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-12 09:55:46,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2020-10-12 09:55:46,435 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 106 [2020-10-12 09:55:46,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:46,436 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2020-10-12 09:55:46,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-12 09:55:46,436 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2020-10-12 09:55:46,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-12 09:55:46,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:46,439 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:46,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 09:55:46,440 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:46,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:46,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1943442109, now seen corresponding path program 17 times [2020-10-12 09:55:46,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:46,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489689932] [2020-10-12 09:55:46,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:46,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:46,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:49,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-12 09:55:49,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:55:49,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3074 [2020-10-12 09:55:49,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:49,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 09:55:49,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:55:49,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 09:55:49,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:49,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:49,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:49,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:49,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:49,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:49,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:49,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:49,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:49,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:49,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:49,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 09:55:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:49,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:49,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:49,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:49,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:49,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:49,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:49,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:49,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:49,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:49,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 09:55:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:49,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:49,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:49,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:49,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:49,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:49,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 09:55:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:49,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:49,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:49,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:49,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:49,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:49,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:49,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 09:55:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:49,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:49,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:49,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:49,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:49,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:49,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:49,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 09:55:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:49,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:49,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:49,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:49,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:49,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:49,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:49,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 09:55:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:49,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:49,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:49,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:49,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:49,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:49,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:49,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:49,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 09:55:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:49,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:49,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:49,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:49,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:49,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:49,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:49,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:49,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:49,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:49,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 09:55:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:49,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:49,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:49,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:49,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:55:49,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:49,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:49,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 09:55:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:49,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:49,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:49,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:49,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:49,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:55:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:49,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 18 proven. 45 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2020-10-12 09:55:49,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489689932] [2020-10-12 09:55:49,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:49,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 09:55:49,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431904208] [2020-10-12 09:55:49,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 09:55:49,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:49,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 09:55:49,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-12 09:55:49,677 INFO L87 Difference]: Start difference. First operand 117 states and 119 transitions. Second operand 13 states. [2020-10-12 09:55:49,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:49,828 INFO L93 Difference]: Finished difference Result 222 states and 227 transitions. [2020-10-12 09:55:49,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 09:55:49,829 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 114 [2020-10-12 09:55:49,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:49,830 INFO L225 Difference]: With dead ends: 222 [2020-10-12 09:55:49,830 INFO L226 Difference]: Without dead ends: 121 [2020-10-12 09:55:49,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-12 09:55:49,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-12 09:55:49,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2020-10-12 09:55:49,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-12 09:55:49,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions. [2020-10-12 09:55:49,844 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 114 [2020-10-12 09:55:49,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:49,844 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 122 transitions. [2020-10-12 09:55:49,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 09:55:49,844 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions. [2020-10-12 09:55:49,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 09:55:49,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:49,845 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:49,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 09:55:49,846 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:49,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:49,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1510258015, now seen corresponding path program 18 times [2020-10-12 09:55:49,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:49,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064685284] [2020-10-12 09:55:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:49,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:49,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:52,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:54,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:54,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 09:55:54,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:55:54,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 09:55:54,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-12 09:55:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:55:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-12 09:55:54,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:57,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:55:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:57,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:57,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:57,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:55:57,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:57,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:57,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:55:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:55:57,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:57,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 09:55:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:57,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:57,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:57,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:57,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:57,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:57,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:57,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:57,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:55:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:57,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:57,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:57,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:57,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:57,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:57,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:57,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:57,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:55:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:57,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:57,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:57,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:57,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:57,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:57,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:57,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:57,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:55:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:57,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:57,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:57,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:57,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:57,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:57,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:57,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:57,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:57,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 09:55:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:57,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:57,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:57,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:57,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:57,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:57,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:57,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:57,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:57,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:57,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 09:55:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:57,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:57,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:57,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:57,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:57,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:57,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:57,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:57,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 09:55:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:57,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:57,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:57,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:57,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:57,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:57,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:57,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:57,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:57,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:57,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:57,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 09:55:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:57,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:57,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:57,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:57,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:55:57,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:57,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:57,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:57,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:57,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 09:55:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:57,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:57,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:55:57,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:55:57,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:55:57,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:55:57,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:55:57,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:55:57,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:55:57,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:55:57,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:55:57,228 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 18 proven. 317 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-12 09:55:57,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064685284] [2020-10-12 09:55:57,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:55:57,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-12 09:55:57,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381622970] [2020-10-12 09:55:57,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-12 09:55:57,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:55:57,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-12 09:55:57,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1313, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 09:55:57,230 INFO L87 Difference]: Start difference. First operand 120 states and 122 transitions. Second operand 38 states. [2020-10-12 09:55:59,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:55:59,610 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2020-10-12 09:55:59,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-12 09:55:59,611 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 117 [2020-10-12 09:55:59,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:55:59,612 INFO L225 Difference]: With dead ends: 133 [2020-10-12 09:55:59,612 INFO L226 Difference]: Without dead ends: 131 [2020-10-12 09:55:59,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 23 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=187, Invalid=2675, Unknown=0, NotChecked=0, Total=2862 [2020-10-12 09:55:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-12 09:55:59,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2020-10-12 09:55:59,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-12 09:55:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 130 transitions. [2020-10-12 09:55:59,628 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 130 transitions. Word has length 117 [2020-10-12 09:55:59,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:55:59,629 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 130 transitions. [2020-10-12 09:55:59,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-12 09:55:59,629 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 130 transitions. [2020-10-12 09:55:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-12 09:55:59,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:55:59,631 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:55:59,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 09:55:59,631 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:55:59,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:55:59,632 INFO L82 PathProgramCache]: Analyzing trace with hash -266667432, now seen corresponding path program 19 times [2020-10-12 09:55:59,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:55:59,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347122546] [2020-10-12 09:55:59,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:55:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:55:59,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:55:59,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-12 09:56:04,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:56:04,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-12 09:56:04,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 09:56:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 09:56:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 09:56:04,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:04,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:56:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:04,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:56:04,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:04,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:04,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:56:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:04,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:04,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 09:56:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:04,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:04,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:04,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:04,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:04,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:04,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:56:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:04,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:04,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:04,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:04,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:04,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:04,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:04,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:56:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:04,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:04,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:04,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:04,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:04,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:56:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:04,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:04,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:04,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:04,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:04,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:04,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 09:56:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:04,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:04,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:04,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:04,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 09:56:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:04,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:04,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:04,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:04,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:04,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:04,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:04,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:04,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 09:56:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:04,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:04,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:04,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:04,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:04,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:04,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 09:56:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:04,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:04,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:04,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:04,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:04,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:04,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:04,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:04,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 09:56:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:04,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:04,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:04,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:04,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:04,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:04,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:04,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:04,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 09:56:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:04,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:04,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:04,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:04,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:04,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:04,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:04,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 20 proven. 100 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2020-10-12 09:56:04,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347122546] [2020-10-12 09:56:04,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:56:04,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 09:56:04,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562766233] [2020-10-12 09:56:04,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 09:56:04,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:56:04,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 09:56:04,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-12 09:56:04,862 INFO L87 Difference]: Start difference. First operand 128 states and 130 transitions. Second operand 14 states. [2020-10-12 09:56:05,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:56:05,078 INFO L93 Difference]: Finished difference Result 243 states and 248 transitions. [2020-10-12 09:56:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 09:56:05,078 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 125 [2020-10-12 09:56:05,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:56:05,080 INFO L225 Difference]: With dead ends: 243 [2020-10-12 09:56:05,080 INFO L226 Difference]: Without dead ends: 132 [2020-10-12 09:56:05,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-12 09:56:05,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-12 09:56:05,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2020-10-12 09:56:05,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-12 09:56:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 133 transitions. [2020-10-12 09:56:05,113 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 133 transitions. Word has length 125 [2020-10-12 09:56:05,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:56:05,114 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 133 transitions. [2020-10-12 09:56:05,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 09:56:05,114 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 133 transitions. [2020-10-12 09:56:05,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-12 09:56:05,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:56:05,117 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:56:05,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 09:56:05,118 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:56:05,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:56:05,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1588057078, now seen corresponding path program 20 times [2020-10-12 09:56:05,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:56:05,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706133244] [2020-10-12 09:56:05,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:56:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:05,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:05,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-12 09:56:10,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:56:10,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 09:56:10,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 09:56:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:56:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 09:56:10,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:10,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:56:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:56:10,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:10,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:10,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:10,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:56:10,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:10,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:10,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 09:56:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:10,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:10,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:10,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:10,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:10,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:10,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:10,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 09:56:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:10,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:10,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:10,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:10,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:10,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:10,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:10,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 09:56:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:10,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:10,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:10,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:10,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:10,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 09:56:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:10,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:10,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:10,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:10,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:10,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:10,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:10,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 09:56:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:10,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:10,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:10,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:10,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:10,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 09:56:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:10,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:10,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:10,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:10,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:10,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:10,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:10,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 09:56:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:10,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:10,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:10,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:10,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:10,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 09:56:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:10,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:10,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:10,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:10,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:10,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:10,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:10,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 09:56:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:10,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:10,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:56:10,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:10,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:10,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-12 09:56:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:10,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:10,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:10,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:10,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:10,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 20 proven. 66 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2020-10-12 09:56:10,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706133244] [2020-10-12 09:56:10,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:56:10,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 09:56:10,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977075953] [2020-10-12 09:56:10,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 09:56:10,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:56:10,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 09:56:10,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-12 09:56:10,457 INFO L87 Difference]: Start difference. First operand 131 states and 133 transitions. Second operand 15 states. [2020-10-12 09:56:10,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:56:10,703 INFO L93 Difference]: Finished difference Result 248 states and 253 transitions. [2020-10-12 09:56:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 09:56:10,706 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 128 [2020-10-12 09:56:10,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:56:10,708 INFO L225 Difference]: With dead ends: 248 [2020-10-12 09:56:10,708 INFO L226 Difference]: Without dead ends: 135 [2020-10-12 09:56:10,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-12 09:56:10,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-12 09:56:10,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 134. [2020-10-12 09:56:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-12 09:56:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 136 transitions. [2020-10-12 09:56:10,744 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 136 transitions. Word has length 128 [2020-10-12 09:56:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:56:10,744 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 136 transitions. [2020-10-12 09:56:10,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 09:56:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 136 transitions. [2020-10-12 09:56:10,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-12 09:56:10,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:56:10,748 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:56:10,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 09:56:10,748 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:56:10,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:56:10,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1376269228, now seen corresponding path program 21 times [2020-10-12 09:56:10,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:56:10,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770841028] [2020-10-12 09:56:10,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:56:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:10,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:10,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:15,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:15,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 09:56:15,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:56:15,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 09:56:15,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:15,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 09:56:15,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 09:56:15,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 09:56:15,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:15,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:56:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:15,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:15,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:15,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:56:15,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:15,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:15,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:15,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:15,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:56:15,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:15,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:15,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:56:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:15,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:15,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:15,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:15,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:15,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:15,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:15,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:15,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:15,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:15,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:15,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:56:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:15,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:15,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:15,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:15,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:15,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:15,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:15,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:15,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 09:56:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:15,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:15,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:15,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:15,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:15,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:15,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:15,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:15,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:15,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:15,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:15,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 09:56:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:15,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:15,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:15,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:15,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:15,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:15,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:15,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:15,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:15,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:15,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 09:56:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:15,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:15,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:15,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:15,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:15,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:15,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:15,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:15,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 09:56:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:15,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:15,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:15,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:15,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:15,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:15,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:15,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:15,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 09:56:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:15,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:15,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:15,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:15,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:15,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:15,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:15,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:15,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:15,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 09:56:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:15,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:15,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:15,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:15,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:15,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:15,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:15,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:15,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 09:56:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:15,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:15,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:15,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:15,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:15,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:15,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:15,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:16,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 09:56:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:16,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:16,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:16,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:16,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:16,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:16,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:16,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:16,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:16,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:56:16,026 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 20 proven. 144 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2020-10-12 09:56:16,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770841028] [2020-10-12 09:56:16,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:56:16,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 09:56:16,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136654283] [2020-10-12 09:56:16,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 09:56:16,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:56:16,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 09:56:16,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-12 09:56:16,041 INFO L87 Difference]: Start difference. First operand 134 states and 136 transitions. Second operand 16 states. [2020-10-12 09:56:16,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:56:16,276 INFO L93 Difference]: Finished difference Result 253 states and 258 transitions. [2020-10-12 09:56:16,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 09:56:16,277 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 131 [2020-10-12 09:56:16,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:56:16,279 INFO L225 Difference]: With dead ends: 253 [2020-10-12 09:56:16,279 INFO L226 Difference]: Without dead ends: 138 [2020-10-12 09:56:16,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-12 09:56:16,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-12 09:56:16,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2020-10-12 09:56:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-12 09:56:16,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 139 transitions. [2020-10-12 09:56:16,311 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 139 transitions. Word has length 131 [2020-10-12 09:56:16,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:56:16,312 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 139 transitions. [2020-10-12 09:56:16,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 09:56:16,312 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 139 transitions. [2020-10-12 09:56:16,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-12 09:56:16,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:56:16,315 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:56:16,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 09:56:16,316 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:56:16,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:56:16,316 INFO L82 PathProgramCache]: Analyzing trace with hash -231575822, now seen corresponding path program 22 times [2020-10-12 09:56:16,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:56:16,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488171199] [2020-10-12 09:56:16,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:56:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:16,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-12 09:56:21,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:56:21,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 09:56:21,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 09:56:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:56:21,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 09:56:21,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:56:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:56:21,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:21,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:56:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:21,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 09:56:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:21,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:21,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:21,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:21,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:21,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:21,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 09:56:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:21,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:21,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:21,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:21,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:21,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:21,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 09:56:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:21,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:21,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:21,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:21,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 09:56:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:21,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:21,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:21,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:21,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:21,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:21,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 09:56:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:21,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:21,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:21,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:21,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:21,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:21,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 09:56:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:21,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:21,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:21,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:21,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:21,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:21,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 09:56:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:21,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:21,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:21,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:21,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:21,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:21,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 09:56:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:21,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:21,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:21,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:21,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-12 09:56:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:21,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:21,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:21,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:21,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:21,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:21,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 09:56:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:21,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:21,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:21,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:21,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:21,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:21,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:21,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:21,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:21,562 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 20 proven. 91 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2020-10-12 09:56:21,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488171199] [2020-10-12 09:56:21,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:56:21,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 09:56:21,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035837766] [2020-10-12 09:56:21,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 09:56:21,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:56:21,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 09:56:21,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-12 09:56:21,564 INFO L87 Difference]: Start difference. First operand 137 states and 139 transitions. Second operand 17 states. [2020-10-12 09:56:21,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:56:21,722 INFO L93 Difference]: Finished difference Result 258 states and 263 transitions. [2020-10-12 09:56:21,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 09:56:21,722 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 134 [2020-10-12 09:56:21,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:56:21,724 INFO L225 Difference]: With dead ends: 258 [2020-10-12 09:56:21,724 INFO L226 Difference]: Without dead ends: 141 [2020-10-12 09:56:21,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-12 09:56:21,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-10-12 09:56:21,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2020-10-12 09:56:21,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-12 09:56:21,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 142 transitions. [2020-10-12 09:56:21,740 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 142 transitions. Word has length 134 [2020-10-12 09:56:21,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:56:21,741 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 142 transitions. [2020-10-12 09:56:21,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 09:56:21,741 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 142 transitions. [2020-10-12 09:56:21,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-12 09:56:21,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:56:21,743 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:56:21,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 09:56:21,743 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:56:21,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:56:21,743 INFO L82 PathProgramCache]: Analyzing trace with hash 963526736, now seen corresponding path program 23 times [2020-10-12 09:56:21,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:56:21,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429639588] [2020-10-12 09:56:21,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:56:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:21,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:21,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-12 09:56:26,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:56:26,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 09:56:26,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 09:56:26,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-12 09:56:26,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 09:56:26,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:26,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:56:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:26,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:56:26,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:26,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:26,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:26,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:56:26,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:26,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:26,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:56:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:26,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:26,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:26,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:26,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:26,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:26,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:56:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:26,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:26,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:26,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:26,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:26,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:26,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 09:56:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:26,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:26,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:26,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:26,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 09:56:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:26,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:26,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:26,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:26,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:26,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:26,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 09:56:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:26,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:26,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:26,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:26,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:26,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:26,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 09:56:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:26,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:26,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:26,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:26,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:26,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:26,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:26,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:26,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 09:56:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:26,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:26,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:26,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:26,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:26,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:26,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:26,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:26,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 09:56:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:26,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:26,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:26,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:26,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:26,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:26,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:26,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:26,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 09:56:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:26,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:26,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:26,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:26,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:26,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:26,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:26,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:26,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 09:56:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:26,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:26,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:26,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:26,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:26,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:26,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:26,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:27,002 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 20 proven. 196 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2020-10-12 09:56:27,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429639588] [2020-10-12 09:56:27,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:56:27,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-12 09:56:27,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241790415] [2020-10-12 09:56:27,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 09:56:27,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:56:27,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 09:56:27,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-12 09:56:27,003 INFO L87 Difference]: Start difference. First operand 140 states and 142 transitions. Second operand 18 states. [2020-10-12 09:56:27,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:56:27,166 INFO L93 Difference]: Finished difference Result 263 states and 268 transitions. [2020-10-12 09:56:27,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 09:56:27,167 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 137 [2020-10-12 09:56:27,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:56:27,169 INFO L225 Difference]: With dead ends: 263 [2020-10-12 09:56:27,169 INFO L226 Difference]: Without dead ends: 144 [2020-10-12 09:56:27,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-12 09:56:27,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-12 09:56:27,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 143. [2020-10-12 09:56:27,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-12 09:56:27,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 145 transitions. [2020-10-12 09:56:27,187 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 145 transitions. Word has length 137 [2020-10-12 09:56:27,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:56:27,187 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 145 transitions. [2020-10-12 09:56:27,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 09:56:27,187 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 145 transitions. [2020-10-12 09:56:27,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-12 09:56:27,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:56:27,189 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:56:27,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 09:56:27,189 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:56:27,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:56:27,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1549020142, now seen corresponding path program 24 times [2020-10-12 09:56:27,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:56:27,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606008137] [2020-10-12 09:56:27,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:56:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:27,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:27,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 09:56:32,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:56:32,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 09:56:32,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 09:56:32,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:56:32,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 09:56:32,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:56:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:56:32,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:32,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:32,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:32,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:56:32,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:32,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 09:56:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:32,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:32,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:32,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:32,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 09:56:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:32,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:32,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:32,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:32,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 09:56:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:32,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:32,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:32,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:32,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 09:56:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:32,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:32,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:32,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 09:56:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:32,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:32,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:32,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:32,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 09:56:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:32,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:32,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:32,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:32,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 09:56:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:32,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:32,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:32,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:32,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 09:56:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:32,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:32,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 09:56:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:32,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:32,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:32,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:32,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:32,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:32,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 09:56:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:32,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:32,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:32,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:32,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:32,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:32,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:32,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:32,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:32,472 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 20 proven. 120 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2020-10-12 09:56:32,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606008137] [2020-10-12 09:56:32,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:56:32,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-12 09:56:32,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529625822] [2020-10-12 09:56:32,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 09:56:32,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:56:32,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 09:56:32,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-12 09:56:32,474 INFO L87 Difference]: Start difference. First operand 143 states and 145 transitions. Second operand 19 states. [2020-10-12 09:56:32,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:56:32,700 INFO L93 Difference]: Finished difference Result 268 states and 273 transitions. [2020-10-12 09:56:32,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 09:56:32,701 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 140 [2020-10-12 09:56:32,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:56:32,703 INFO L225 Difference]: With dead ends: 268 [2020-10-12 09:56:32,703 INFO L226 Difference]: Without dead ends: 147 [2020-10-12 09:56:32,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-12 09:56:32,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-12 09:56:32,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2020-10-12 09:56:32,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-12 09:56:32,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 148 transitions. [2020-10-12 09:56:32,720 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 148 transitions. Word has length 140 [2020-10-12 09:56:32,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:56:32,720 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 148 transitions. [2020-10-12 09:56:32,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 09:56:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 148 transitions. [2020-10-12 09:56:32,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-12 09:56:32,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:56:32,722 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:56:32,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-12 09:56:32,722 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:56:32,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:56:32,723 INFO L82 PathProgramCache]: Analyzing trace with hash 882726476, now seen corresponding path program 25 times [2020-10-12 09:56:32,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:56:32,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339980416] [2020-10-12 09:56:32,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:56:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:32,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:32,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:37,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:37,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 09:56:37,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:56:37,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 09:56:37,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:37,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 09:56:37,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-12 09:56:37,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 09:56:37,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:37,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:56:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:37,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:37,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:37,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:56:37,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:37,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:37,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:37,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:37,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:56:37,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:37,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:37,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:56:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:37,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:37,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:37,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:37,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:37,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:38,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:38,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:56:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:38,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:38,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:38,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:38,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:38,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:38,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:38,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:38,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:38,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:38,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:38,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 09:56:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:38,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:38,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:38,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:38,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:38,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:38,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 09:56:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:38,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:38,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:38,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:38,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:38,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:38,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:38,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:38,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:38,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:38,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:38,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 09:56:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:38,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:38,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:38,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:38,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:38,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:38,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:38,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:38,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 09:56:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:38,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:38,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:38,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:38,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:38,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:38,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:38,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:38,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 09:56:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:38,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:38,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:38,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:38,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:38,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:38,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:38,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:38,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 09:56:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:38,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:38,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:38,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:38,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:38,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:38,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:38,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:38,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:38,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:38,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:38,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 09:56:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:38,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:38,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:38,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:38,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:38,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:38,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:38,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:38,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:38,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:38,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:38,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 09:56:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:38,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:38,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:38,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:38,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:38,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:38,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:38,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:38,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:38,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:38,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:38,033 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 20 proven. 256 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2020-10-12 09:56:38,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339980416] [2020-10-12 09:56:38,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:56:38,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 09:56:38,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630995192] [2020-10-12 09:56:38,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 09:56:38,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:56:38,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 09:56:38,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2020-10-12 09:56:38,035 INFO L87 Difference]: Start difference. First operand 146 states and 148 transitions. Second operand 20 states. [2020-10-12 09:56:38,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:56:38,241 INFO L93 Difference]: Finished difference Result 273 states and 278 transitions. [2020-10-12 09:56:38,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 09:56:38,242 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 143 [2020-10-12 09:56:38,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:56:38,243 INFO L225 Difference]: With dead ends: 273 [2020-10-12 09:56:38,243 INFO L226 Difference]: Without dead ends: 150 [2020-10-12 09:56:38,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2020-10-12 09:56:38,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-12 09:56:38,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2020-10-12 09:56:38,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-12 09:56:38,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 151 transitions. [2020-10-12 09:56:38,261 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 151 transitions. Word has length 143 [2020-10-12 09:56:38,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:56:38,261 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 151 transitions. [2020-10-12 09:56:38,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 09:56:38,261 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 151 transitions. [2020-10-12 09:56:38,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-12 09:56:38,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:56:38,262 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:56:38,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-12 09:56:38,262 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:56:38,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:56:38,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1796470038, now seen corresponding path program 26 times [2020-10-12 09:56:38,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:56:38,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585929253] [2020-10-12 09:56:38,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:56:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:38,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:38,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 09:56:43,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:56:43,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 09:56:43,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 09:56:43,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:56:43,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 09:56:43,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:56:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:56:43,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:43,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:43,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:56:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:43,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 09:56:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:43,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:43,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:43,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 09:56:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:43,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:43,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:43,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:43,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:43,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:43,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 09:56:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:43,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:43,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:43,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:43,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 09:56:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:43,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:43,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:43,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:43,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:43,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:43,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 09:56:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:43,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:43,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:43,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:43,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:43,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 09:56:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:43,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:43,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-12 09:56:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:43,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:43,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:43,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:43,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:43,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:43,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 09:56:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:43,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:43,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:43,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:43,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:43,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:43,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-12 09:56:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:43,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:43,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:43,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:43,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:43,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 09:56:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:43,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:43,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:43,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:43,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:43,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:43,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:43,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:43,599 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 20 proven. 153 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2020-10-12 09:56:43,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585929253] [2020-10-12 09:56:43,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:56:43,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 09:56:43,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294358579] [2020-10-12 09:56:43,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 09:56:43,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:56:43,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 09:56:43,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2020-10-12 09:56:43,600 INFO L87 Difference]: Start difference. First operand 149 states and 151 transitions. Second operand 21 states. [2020-10-12 09:56:43,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:56:43,849 INFO L93 Difference]: Finished difference Result 278 states and 283 transitions. [2020-10-12 09:56:43,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 09:56:43,849 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 146 [2020-10-12 09:56:43,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:56:43,851 INFO L225 Difference]: With dead ends: 278 [2020-10-12 09:56:43,851 INFO L226 Difference]: Without dead ends: 153 [2020-10-12 09:56:43,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2020-10-12 09:56:43,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-12 09:56:43,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 152. [2020-10-12 09:56:43,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-12 09:56:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 154 transitions. [2020-10-12 09:56:43,868 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 154 transitions. Word has length 146 [2020-10-12 09:56:43,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:56:43,869 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 154 transitions. [2020-10-12 09:56:43,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 09:56:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 154 transitions. [2020-10-12 09:56:43,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-12 09:56:43,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:56:43,870 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:56:43,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-12 09:56:43,871 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:56:43,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:56:43,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1243876936, now seen corresponding path program 27 times [2020-10-12 09:56:43,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:56:43,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390455814] [2020-10-12 09:56:43,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:56:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:43,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:43,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:48,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:48,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-12 09:56:48,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:56:48,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-12 09:56:48,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 09:56:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-12 09:56:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 09:56:48,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:56:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:49,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:56:49,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:49,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:49,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:49,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:49,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:56:49,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:49,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:56:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:49,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:49,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:49,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:49,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:49,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:49,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:49,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 09:56:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:49,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:49,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:49,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:49,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:49,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 09:56:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:49,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:49,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:49,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:49,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:49,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:49,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:49,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:49,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 09:56:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:49,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:49,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:49,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:49,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:49,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 09:56:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:49,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:49,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:49,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:49,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:49,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 09:56:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:49,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:49,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:49,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 09:56:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:49,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:49,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:49,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:49,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:49,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 09:56:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:49,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:49,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:49,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:49,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:49,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:49,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:49,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:49,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 09:56:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:49,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:49,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:49,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:49,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:49,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:49,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:49,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:49,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 09:56:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:49,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:49,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:49,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:49,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:49,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:49,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:49,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:49,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:49,257 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 20 proven. 324 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-10-12 09:56:49,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390455814] [2020-10-12 09:56:49,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:56:49,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-12 09:56:49,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142664794] [2020-10-12 09:56:49,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 09:56:49,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:56:49,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 09:56:49,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2020-10-12 09:56:49,259 INFO L87 Difference]: Start difference. First operand 152 states and 154 transitions. Second operand 22 states. [2020-10-12 09:56:49,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:56:49,495 INFO L93 Difference]: Finished difference Result 283 states and 288 transitions. [2020-10-12 09:56:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 09:56:49,496 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 149 [2020-10-12 09:56:49,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:56:49,498 INFO L225 Difference]: With dead ends: 283 [2020-10-12 09:56:49,498 INFO L226 Difference]: Without dead ends: 156 [2020-10-12 09:56:49,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2020-10-12 09:56:49,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-12 09:56:49,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2020-10-12 09:56:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-12 09:56:49,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 157 transitions. [2020-10-12 09:56:49,513 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 157 transitions. Word has length 149 [2020-10-12 09:56:49,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:56:49,514 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 157 transitions. [2020-10-12 09:56:49,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 09:56:49,514 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 157 transitions. [2020-10-12 09:56:49,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-12 09:56:49,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:56:49,515 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:56:49,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-12 09:56:49,516 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:56:49,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:56:49,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1549339622, now seen corresponding path program 28 times [2020-10-12 09:56:49,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:56:49,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715794659] [2020-10-12 09:56:49,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:56:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:49,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:49,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 09:56:54,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:56:54,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 09:56:54,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 09:56:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:56:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 09:56:54,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:56:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:54,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:56:54,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:54,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:54,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:54,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:56:54,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:54,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 09:56:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:54,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:54,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:54,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:54,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:54,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:54,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:54,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 09:56:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:54,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:54,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:54,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:54,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:54,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 09:56:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:54,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:54,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:54,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 09:56:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:54,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:54,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:54,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:54,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:54,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 09:56:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:54,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:54,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:54,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:54,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:54,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:54,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 09:56:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:54,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:54,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:54,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:54,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:54,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-12 09:56:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:54,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:54,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:54,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:54,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:54,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:54,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:54,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 09:56:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:54,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:54,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:54,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:54,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-12 09:56:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:54,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:54,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:54,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:56:54,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:54,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 09:56:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:54,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:54,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:56:54,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:56:54,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:56:54,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:56:54,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:56:54,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:56:54,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:56:54,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:56:54,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:56:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 20 proven. 190 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2020-10-12 09:56:54,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715794659] [2020-10-12 09:56:54,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:56:54,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-12 09:56:54,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461235583] [2020-10-12 09:56:54,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 09:56:54,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:56:54,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 09:56:54,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2020-10-12 09:56:54,918 INFO L87 Difference]: Start difference. First operand 155 states and 157 transitions. Second operand 23 states. [2020-10-12 09:56:55,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:56:55,171 INFO L93 Difference]: Finished difference Result 288 states and 293 transitions. [2020-10-12 09:56:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 09:56:55,172 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 152 [2020-10-12 09:56:55,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:56:55,173 INFO L225 Difference]: With dead ends: 288 [2020-10-12 09:56:55,174 INFO L226 Difference]: Without dead ends: 159 [2020-10-12 09:56:55,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2020-10-12 09:56:55,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-12 09:56:55,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2020-10-12 09:56:55,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-12 09:56:55,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 160 transitions. [2020-10-12 09:56:55,190 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 160 transitions. Word has length 152 [2020-10-12 09:56:55,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:56:55,190 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 160 transitions. [2020-10-12 09:56:55,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 09:56:55,190 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 160 transitions. [2020-10-12 09:56:55,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-12 09:56:55,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:56:55,191 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:56:55,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-12 09:56:55,192 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:56:55,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:56:55,192 INFO L82 PathProgramCache]: Analyzing trace with hash -316577724, now seen corresponding path program 29 times [2020-10-12 09:56:55,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:56:55,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221559756] [2020-10-12 09:56:55,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:56:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:56:55,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:56:55,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 09:57:00,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:57:00,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 09:57:00,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 09:57:00,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-12 09:57:00,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 09:57:00,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:57:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:57:00,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:00,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:00,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:00,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:57:00,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:00,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 09:57:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:00,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:00,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:00,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:00,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 09:57:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:00,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:00,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 09:57:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:00,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:00,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:00,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:00,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 09:57:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:00,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:00,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:00,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:00,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 09:57:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:00,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:00,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:00,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:00,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:00,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:00,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 09:57:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:00,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:00,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:00,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:00,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 09:57:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:00,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:00,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:00,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:00,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:00,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:00,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 09:57:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:00,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:00,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:00,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:00,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:00,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:00,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 09:57:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:00,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:00,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:00,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:00,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:00,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:00,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 09:57:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:00,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:00,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:00,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:00,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:00,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:00,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 20 proven. 400 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2020-10-12 09:57:00,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221559756] [2020-10-12 09:57:00,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:57:00,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-12 09:57:00,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871620261] [2020-10-12 09:57:00,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-12 09:57:00,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:57:00,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-12 09:57:00,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2020-10-12 09:57:00,620 INFO L87 Difference]: Start difference. First operand 158 states and 160 transitions. Second operand 24 states. [2020-10-12 09:57:00,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:57:00,838 INFO L93 Difference]: Finished difference Result 293 states and 298 transitions. [2020-10-12 09:57:00,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 09:57:00,838 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 155 [2020-10-12 09:57:00,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:57:00,840 INFO L225 Difference]: With dead ends: 293 [2020-10-12 09:57:00,840 INFO L226 Difference]: Without dead ends: 162 [2020-10-12 09:57:00,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2020-10-12 09:57:00,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-12 09:57:00,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2020-10-12 09:57:00,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-12 09:57:00,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 163 transitions. [2020-10-12 09:57:00,858 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 163 transitions. Word has length 155 [2020-10-12 09:57:00,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:57:00,858 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 163 transitions. [2020-10-12 09:57:00,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-12 09:57:00,859 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 163 transitions. [2020-10-12 09:57:00,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-12 09:57:00,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:57:00,860 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:57:00,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-12 09:57:00,860 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:57:00,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:57:00,861 INFO L82 PathProgramCache]: Analyzing trace with hash -75878686, now seen corresponding path program 30 times [2020-10-12 09:57:00,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:57:00,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747781344] [2020-10-12 09:57:00,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:57:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:00,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:00,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:05,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:05,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-12 09:57:05,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:57:05,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-12 09:57:05,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-12 09:57:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:57:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 09:57:05,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:57:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:06,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:57:06,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:06,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:06,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:06,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:57:06,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:06,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 09:57:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:06,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:06,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:06,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:06,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:06,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:06,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:06,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:06,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 09:57:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:06,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:06,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:06,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:06,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:06,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:06,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:06,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:06,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 09:57:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:06,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:06,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:06,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:06,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:06,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:06,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:06,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:06,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 09:57:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:06,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:06,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:06,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:06,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:06,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:06,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:06,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:06,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 09:57:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:06,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:06,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:06,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:06,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:06,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:06,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:06,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:06,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-12 09:57:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:06,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:06,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:06,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:06,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:06,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:06,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:06,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:06,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 09:57:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:06,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:06,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:06,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:57:06,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:06,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:06,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:06,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:06,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 09:57:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:06,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:06,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:06,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:06,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:06,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:06,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:06,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:06,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-12 09:57:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:06,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:06,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:06,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:06,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:06,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:06,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:06,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:06,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-12 09:57:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:06,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:06,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:06,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:06,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:06,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:06,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:06,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:06,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 20 proven. 231 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2020-10-12 09:57:06,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747781344] [2020-10-12 09:57:06,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:57:06,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-12 09:57:06,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098594028] [2020-10-12 09:57:06,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 09:57:06,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:57:06,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 09:57:06,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=322, Unknown=0, NotChecked=0, Total=600 [2020-10-12 09:57:06,322 INFO L87 Difference]: Start difference. First operand 161 states and 163 transitions. Second operand 25 states. [2020-10-12 09:57:06,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:57:06,556 INFO L93 Difference]: Finished difference Result 298 states and 303 transitions. [2020-10-12 09:57:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 09:57:06,557 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 158 [2020-10-12 09:57:06,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:57:06,558 INFO L225 Difference]: With dead ends: 298 [2020-10-12 09:57:06,558 INFO L226 Difference]: Without dead ends: 165 [2020-10-12 09:57:06,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=278, Invalid=322, Unknown=0, NotChecked=0, Total=600 [2020-10-12 09:57:06,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-12 09:57:06,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 164. [2020-10-12 09:57:06,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-12 09:57:06,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 166 transitions. [2020-10-12 09:57:06,575 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 166 transitions. Word has length 158 [2020-10-12 09:57:06,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:57:06,576 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 166 transitions. [2020-10-12 09:57:06,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 09:57:06,576 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 166 transitions. [2020-10-12 09:57:06,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-12 09:57:06,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:57:06,577 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:57:06,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-12 09:57:06,577 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:57:06,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:57:06,578 INFO L82 PathProgramCache]: Analyzing trace with hash 422863936, now seen corresponding path program 31 times [2020-10-12 09:57:06,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:57:06,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040564613] [2020-10-12 09:57:06,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:57:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:06,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:06,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:11,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:11,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 09:57:11,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:57:11,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 09:57:11,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:11,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-12 09:57:11,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:57:11,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 09:57:11,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:57:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:12,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:57:12,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:12,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:12,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:57:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:12,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 09:57:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:12,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:12,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:12,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:12,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:12,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 09:57:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:12,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:12,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:12,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:12,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:12,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 09:57:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:12,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:12,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:12,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:12,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:12,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:12,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:12,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:12,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 09:57:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:12,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:12,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:12,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:12,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 09:57:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:12,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:12,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:12,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:12,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:12,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 09:57:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:12,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:12,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:12,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:12,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:12,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:12,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:12,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:12,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 09:57:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:12,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:12,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:12,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:12,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:12,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 09:57:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:12,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:12,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:12,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:12,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:12,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-12 09:57:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:12,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:12,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:12,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:12,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:12,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-12 09:57:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:12,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:12,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:12,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:57:12,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:12,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:12,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 20 proven. 253 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2020-10-12 09:57:12,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040564613] [2020-10-12 09:57:12,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:57:12,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-12 09:57:12,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092883139] [2020-10-12 09:57:12,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-12 09:57:12,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:57:12,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-12 09:57:12,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2020-10-12 09:57:12,088 INFO L87 Difference]: Start difference. First operand 164 states and 166 transitions. Second operand 26 states. [2020-10-12 09:57:12,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:57:12,393 INFO L93 Difference]: Finished difference Result 303 states and 308 transitions. [2020-10-12 09:57:12,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 09:57:12,394 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 161 [2020-10-12 09:57:12,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:57:12,395 INFO L225 Difference]: With dead ends: 303 [2020-10-12 09:57:12,396 INFO L226 Difference]: Without dead ends: 168 [2020-10-12 09:57:12,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2020-10-12 09:57:12,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-12 09:57:12,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2020-10-12 09:57:12,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-12 09:57:12,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 169 transitions. [2020-10-12 09:57:12,415 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 169 transitions. Word has length 161 [2020-10-12 09:57:12,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:57:12,415 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 169 transitions. [2020-10-12 09:57:12,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-12 09:57:12,415 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 169 transitions. [2020-10-12 09:57:12,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-12 09:57:12,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:57:12,417 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:57:12,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-12 09:57:12,417 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:57:12,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:57:12,418 INFO L82 PathProgramCache]: Analyzing trace with hash 61764574, now seen corresponding path program 32 times [2020-10-12 09:57:12,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:57:12,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054592134] [2020-10-12 09:57:12,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:57:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:12,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:12,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-12 09:57:17,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:57:17,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-12 09:57:17,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 09:57:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-12 09:57:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 09:57:17,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:57:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:17,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:57:17,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:17,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:17,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:17,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:57:17,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:17,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 09:57:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:17,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:17,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:17,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:17,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:17,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 09:57:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:17,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:17,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:17,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:17,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:17,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:17,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:17,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 09:57:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:17,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:17,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:17,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:17,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:17,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:17,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:17,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 09:57:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:17,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:17,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:17,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:17,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:17,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:17,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:17,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 09:57:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:17,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:17,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:17,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:17,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:17,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:17,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:17,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 09:57:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:17,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:17,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:17,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:17,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:17,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:17,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:17,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 09:57:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:17,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:17,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:17,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:17,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:17,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:17,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:17,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-12 09:57:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:17,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:17,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:17,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:17,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:17,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:17,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:17,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-12 09:57:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:17,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:17,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:17,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:17,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:17,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:17,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:17,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-12 09:57:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:17,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:17,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:17,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:17,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:17,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:17,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:17,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 20 proven. 529 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2020-10-12 09:57:17,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054592134] [2020-10-12 09:57:17,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:57:17,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-12 09:57:17,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999534611] [2020-10-12 09:57:17,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-12 09:57:17,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:57:17,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-12 09:57:17,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2020-10-12 09:57:17,945 INFO L87 Difference]: Start difference. First operand 167 states and 169 transitions. Second operand 27 states. [2020-10-12 09:57:18,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:57:18,261 INFO L93 Difference]: Finished difference Result 308 states and 313 transitions. [2020-10-12 09:57:18,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 09:57:18,262 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 164 [2020-10-12 09:57:18,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:57:18,263 INFO L225 Difference]: With dead ends: 308 [2020-10-12 09:57:18,263 INFO L226 Difference]: Without dead ends: 171 [2020-10-12 09:57:18,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2020-10-12 09:57:18,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-12 09:57:18,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 170. [2020-10-12 09:57:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-12 09:57:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 172 transitions. [2020-10-12 09:57:18,282 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 172 transitions. Word has length 164 [2020-10-12 09:57:18,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:57:18,282 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 172 transitions. [2020-10-12 09:57:18,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-12 09:57:18,282 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 172 transitions. [2020-10-12 09:57:18,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-12 09:57:18,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:57:18,284 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:57:18,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-12 09:57:18,284 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:57:18,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:57:18,285 INFO L82 PathProgramCache]: Analyzing trace with hash 310116924, now seen corresponding path program 33 times [2020-10-12 09:57:18,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:57:18,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271653136] [2020-10-12 09:57:18,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:57:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:18,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:18,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-12 09:57:23,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:57:23,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 09:57:23,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 09:57:23,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-12 09:57:23,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 09:57:23,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:57:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:23,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:57:23,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:23,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:23,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:23,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:57:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 09:57:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:23,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:23,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:23,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:23,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:23,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 09:57:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:23,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:23,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:23,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:23,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:23,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:23,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:23,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 09:57:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:23,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:23,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:23,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:23,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:23,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:23,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:23,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 09:57:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:23,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:23,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:23,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:23,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 09:57:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:23,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:23,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:23,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:23,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:23,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:23,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:23,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 09:57:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:23,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:23,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:23,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:23,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:23,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:23,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:23,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 09:57:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:23,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:23,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:23,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:23,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:23,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:23,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:23,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 09:57:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:23,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:23,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:23,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:23,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:23,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:23,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 09:57:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:23,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:23,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:23,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 09:57:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:23,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:23,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:23,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:23,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:23,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:23,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:23,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:23,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1276 backedges. 20 proven. 576 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2020-10-12 09:57:23,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271653136] [2020-10-12 09:57:23,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:57:23,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-12 09:57:23,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408110725] [2020-10-12 09:57:23,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-12 09:57:23,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:57:23,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-12 09:57:23,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=403, Unknown=0, NotChecked=0, Total=756 [2020-10-12 09:57:23,831 INFO L87 Difference]: Start difference. First operand 170 states and 172 transitions. Second operand 28 states. [2020-10-12 09:57:24,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:57:24,152 INFO L93 Difference]: Finished difference Result 313 states and 318 transitions. [2020-10-12 09:57:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 09:57:24,153 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 167 [2020-10-12 09:57:24,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:57:24,154 INFO L225 Difference]: With dead ends: 313 [2020-10-12 09:57:24,154 INFO L226 Difference]: Without dead ends: 174 [2020-10-12 09:57:24,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=353, Invalid=403, Unknown=0, NotChecked=0, Total=756 [2020-10-12 09:57:24,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-12 09:57:24,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 173. [2020-10-12 09:57:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-12 09:57:24,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 175 transitions. [2020-10-12 09:57:24,174 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 175 transitions. Word has length 167 [2020-10-12 09:57:24,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:57:24,175 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 175 transitions. [2020-10-12 09:57:24,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-12 09:57:24,175 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 175 transitions. [2020-10-12 09:57:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-12 09:57:24,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:57:24,176 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:57:24,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-12 09:57:24,177 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:57:24,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:57:24,177 INFO L82 PathProgramCache]: Analyzing trace with hash 248830682, now seen corresponding path program 34 times [2020-10-12 09:57:24,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:57:24,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352463730] [2020-10-12 09:57:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:57:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:24,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:24,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-12 09:57:29,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:57:29,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-12 09:57:29,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-12 09:57:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:57:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 09:57:29,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:57:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:29,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:57:29,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:29,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:57:29,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:29,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:57:29,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:29,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 09:57:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:29,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:29,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:29,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:29,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:29,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 09:57:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:29,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:29,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:29,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:29,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:29,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:29,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:29,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 09:57:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:29,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:29,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:29,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:29,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:29,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:29,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:29,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-12 09:57:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:29,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:29,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:29,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:29,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:29,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:29,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:29,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 09:57:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:29,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:29,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:29,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:29,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:29,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-12 09:57:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:29,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:29,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:29,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:29,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:29,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:29,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:29,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 09:57:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:29,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:29,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:29,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:29,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:29,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-12 09:57:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:29,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:29,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:29,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:29,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:29,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:29,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:29,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-12 09:57:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:29,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:29,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:29,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:29,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:29,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:29,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:29,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-12 09:57:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:29,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:29,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:29,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:29,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:29,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:29,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:29,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:29,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1350 backedges. 20 proven. 325 refuted. 0 times theorem prover too weak. 1005 trivial. 0 not checked. [2020-10-12 09:57:29,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352463730] [2020-10-12 09:57:29,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:57:29,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-12 09:57:29,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126254873] [2020-10-12 09:57:29,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-12 09:57:29,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:57:29,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-12 09:57:29,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=432, Unknown=0, NotChecked=0, Total=812 [2020-10-12 09:57:29,755 INFO L87 Difference]: Start difference. First operand 173 states and 175 transitions. Second operand 29 states. [2020-10-12 09:57:30,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:57:30,077 INFO L93 Difference]: Finished difference Result 318 states and 323 transitions. [2020-10-12 09:57:30,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 09:57:30,078 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 170 [2020-10-12 09:57:30,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:57:30,079 INFO L225 Difference]: With dead ends: 318 [2020-10-12 09:57:30,079 INFO L226 Difference]: Without dead ends: 177 [2020-10-12 09:57:30,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=380, Invalid=432, Unknown=0, NotChecked=0, Total=812 [2020-10-12 09:57:30,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-12 09:57:30,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 176. [2020-10-12 09:57:30,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-10-12 09:57:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 178 transitions. [2020-10-12 09:57:30,098 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 178 transitions. Word has length 170 [2020-10-12 09:57:30,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:57:30,099 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 178 transitions. [2020-10-12 09:57:30,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-12 09:57:30,099 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 178 transitions. [2020-10-12 09:57:30,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-12 09:57:30,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:57:30,100 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:57:30,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-12 09:57:30,101 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:57:30,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:57:30,101 INFO L82 PathProgramCache]: Analyzing trace with hash 630669880, now seen corresponding path program 35 times [2020-10-12 09:57:30,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:57:30,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645768331] [2020-10-12 09:57:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:57:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:30,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:30,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:35,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:35,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 09:57:35,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:57:35,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5383 [2020-10-12 09:57:35,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:35,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-12 09:57:35,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:57:35,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 09:57:35,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:57:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:36,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:57:36,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:36,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:36,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:36,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:36,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:57:36,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:36,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 09:57:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:36,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:36,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:36,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:36,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:36,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:36,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:36,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:36,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 09:57:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:36,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:36,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:36,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:36,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:36,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:36,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:36,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:36,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 09:57:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:36,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:36,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:36,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:36,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:36,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 09:57:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:36,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:36,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:36,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:36,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:36,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:36,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:36,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:36,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 09:57:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:36,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:36,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:36,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:36,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:36,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:36,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:36,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:36,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 09:57:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:36,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:36,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:36,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:36,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:36,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:36,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:36,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:36,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 09:57:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:36,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:36,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:36,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-12 09:57:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:36,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:36,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:36,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:36,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:36,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:36,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:36,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-12 09:57:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:36,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:36,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:36,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:36,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:36,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-12 09:57:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:36,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:36,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:36,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:36,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:36,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:36,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1427 backedges. 20 proven. 351 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2020-10-12 09:57:36,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645768331] [2020-10-12 09:57:36,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:57:36,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-12 09:57:36,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151566060] [2020-10-12 09:57:36,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-12 09:57:36,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:57:36,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-12 09:57:36,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=462, Unknown=0, NotChecked=0, Total=870 [2020-10-12 09:57:36,081 INFO L87 Difference]: Start difference. First operand 176 states and 178 transitions. Second operand 30 states. [2020-10-12 09:57:36,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:57:36,420 INFO L93 Difference]: Finished difference Result 323 states and 328 transitions. [2020-10-12 09:57:36,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-12 09:57:36,420 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 173 [2020-10-12 09:57:36,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:57:36,422 INFO L225 Difference]: With dead ends: 323 [2020-10-12 09:57:36,422 INFO L226 Difference]: Without dead ends: 180 [2020-10-12 09:57:36,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=408, Invalid=462, Unknown=0, NotChecked=0, Total=870 [2020-10-12 09:57:36,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-12 09:57:36,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 179. [2020-10-12 09:57:36,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-12 09:57:36,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 181 transitions. [2020-10-12 09:57:36,443 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 181 transitions. Word has length 173 [2020-10-12 09:57:36,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:57:36,444 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 181 transitions. [2020-10-12 09:57:36,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-12 09:57:36,444 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 181 transitions. [2020-10-12 09:57:36,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-12 09:57:36,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:57:36,445 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:57:36,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-12 09:57:36,446 INFO L427 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:57:36,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:57:36,446 INFO L82 PathProgramCache]: Analyzing trace with hash 2135712726, now seen corresponding path program 36 times [2020-10-12 09:57:36,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:57:36,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95181430] [2020-10-12 09:57:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:57:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:36,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:36,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:41,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:41,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-12 09:57:41,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:57:41,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 09:57:41,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 09:57:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 09:57:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 09:57:41,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:57:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:42,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:57:42,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:42,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:42,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:57:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:42,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 09:57:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:42,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:42,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:42,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:42,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:42,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:42,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 09:57:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:42,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:42,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:42,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:42,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:42,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:42,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:42,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:42,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 09:57:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:42,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:42,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:42,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:42,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-12 09:57:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:42,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:42,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:42,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:42,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:42,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 09:57:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:42,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:42,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:42,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:42,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:42,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:42,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:42,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:42,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-12 09:57:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:42,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:42,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:42,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:42,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:42,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:42,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:42,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:42,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 09:57:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:42,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:42,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:42,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:42,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:42,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:42,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:42,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:42,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-12 09:57:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:42,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:42,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:42,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:42,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:42,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-12 09:57:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:42,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:42,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:42,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:42,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:42,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:42,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:42,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:42,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-12 09:57:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:42,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:42,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:42,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:42,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:42,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:42,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1507 backedges. 20 proven. 729 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2020-10-12 09:57:42,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95181430] [2020-10-12 09:57:42,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:57:42,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-12 09:57:42,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576406153] [2020-10-12 09:57:42,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-12 09:57:42,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:57:42,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-12 09:57:42,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=493, Unknown=0, NotChecked=0, Total=930 [2020-10-12 09:57:42,109 INFO L87 Difference]: Start difference. First operand 179 states and 181 transitions. Second operand 31 states. [2020-10-12 09:57:42,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:57:42,465 INFO L93 Difference]: Finished difference Result 328 states and 333 transitions. [2020-10-12 09:57:42,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-12 09:57:42,465 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 176 [2020-10-12 09:57:42,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:57:42,467 INFO L225 Difference]: With dead ends: 328 [2020-10-12 09:57:42,467 INFO L226 Difference]: Without dead ends: 183 [2020-10-12 09:57:42,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=437, Invalid=493, Unknown=0, NotChecked=0, Total=930 [2020-10-12 09:57:42,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-12 09:57:42,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2020-10-12 09:57:42,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-12 09:57:42,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 184 transitions. [2020-10-12 09:57:42,487 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 184 transitions. Word has length 176 [2020-10-12 09:57:42,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:57:42,488 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 184 transitions. [2020-10-12 09:57:42,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-12 09:57:42,488 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 184 transitions. [2020-10-12 09:57:42,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-12 09:57:42,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:57:42,489 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 28, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:57:42,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-12 09:57:42,490 INFO L427 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:57:42,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:57:42,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1738875956, now seen corresponding path program 37 times [2020-10-12 09:57:42,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:57:42,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056324804] [2020-10-12 09:57:42,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:57:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:42,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:42,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:47,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:47,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-12 09:57:47,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:57:47,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-12 09:57:47,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:47,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 09:57:47,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 09:57:47,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 09:57:47,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:57:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:48,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:57:48,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:48,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:48,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:57:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:48,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 09:57:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:48,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:48,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:48,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:48,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:48,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:48,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:48,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:48,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 09:57:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:48,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:48,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:48,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:48,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:48,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 09:57:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:48,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:48,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:48,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:48,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:48,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:48,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:48,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:48,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 09:57:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:48,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:48,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:48,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:48,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:48,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:48,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:48,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:48,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 09:57:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:48,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:48,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:48,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:48,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:48,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:48,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:48,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:48,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 09:57:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:48,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:48,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:48,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:48,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:48,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:48,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:48,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:48,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 09:57:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:48,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:48,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:48,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:48,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:48,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:48,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:48,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:48,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 09:57:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:48,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:48,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:48,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:48,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:48,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:48,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:48,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:48,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 09:57:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:48,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:48,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:48,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:48,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:48,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:48,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:48,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:48,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 09:57:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:48,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:48,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:48,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:48,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:48,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:48,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:48,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:48,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1590 backedges. 20 proven. 784 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2020-10-12 09:57:48,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056324804] [2020-10-12 09:57:48,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:57:48,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-12 09:57:48,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901196375] [2020-10-12 09:57:48,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-12 09:57:48,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:57:48,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-12 09:57:48,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=525, Unknown=0, NotChecked=0, Total=992 [2020-10-12 09:57:48,217 INFO L87 Difference]: Start difference. First operand 182 states and 184 transitions. Second operand 32 states. [2020-10-12 09:57:48,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:57:48,585 INFO L93 Difference]: Finished difference Result 333 states and 338 transitions. [2020-10-12 09:57:48,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 09:57:48,586 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 179 [2020-10-12 09:57:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:57:48,588 INFO L225 Difference]: With dead ends: 333 [2020-10-12 09:57:48,588 INFO L226 Difference]: Without dead ends: 186 [2020-10-12 09:57:48,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=467, Invalid=525, Unknown=0, NotChecked=0, Total=992 [2020-10-12 09:57:48,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-10-12 09:57:48,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 185. [2020-10-12 09:57:48,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-12 09:57:48,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 187 transitions. [2020-10-12 09:57:48,606 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 187 transitions. Word has length 179 [2020-10-12 09:57:48,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:57:48,607 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 187 transitions. [2020-10-12 09:57:48,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-12 09:57:48,607 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 187 transitions. [2020-10-12 09:57:48,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-12 09:57:48,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:57:48,608 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:57:48,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-12 09:57:48,608 INFO L427 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:57:48,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:57:48,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1072959186, now seen corresponding path program 38 times [2020-10-12 09:57:48,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:57:48,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257850122] [2020-10-12 09:57:48,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:57:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:48,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:48,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:53,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:53,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-12 09:57:53,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:57:53,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-12 09:57:53,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:53,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-12 09:57:53,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-12 09:57:53,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 09:57:53,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:57:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:54,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:57:54,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:54,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:54,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:57:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:54,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 09:57:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:54,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:54,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:54,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:54,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:54,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 09:57:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:54,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:54,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:54,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:54,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:54,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:54,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:54,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:54,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-12 09:57:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:54,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:54,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:54,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:54,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:54,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 09:57:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:54,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:54,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:54,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:54,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:54,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:54,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:54,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:54,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 09:57:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:54,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:54,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:54,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:54,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:54,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:54,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:54,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:54,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-12 09:57:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:54,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:54,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:54,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:54,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:54,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-12 09:57:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:54,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:54,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:54,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:57:54,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:54,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-12 09:57:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:54,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:54,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:54,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-12 09:57:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:54,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:54,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:54,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:54,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:54,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-12 09:57:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:54,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:57:54,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:57:54,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:57:54,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:54,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:57:54,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:57:54,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:57:54,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:57:54,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1676 backedges. 20 proven. 841 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2020-10-12 09:57:54,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257850122] [2020-10-12 09:57:54,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:57:54,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-12 09:57:54,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645342243] [2020-10-12 09:57:54,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-12 09:57:54,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:57:54,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-12 09:57:54,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=498, Invalid=558, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 09:57:54,382 INFO L87 Difference]: Start difference. First operand 185 states and 187 transitions. Second operand 33 states. [2020-10-12 09:57:54,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:57:54,768 INFO L93 Difference]: Finished difference Result 338 states and 343 transitions. [2020-10-12 09:57:54,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-12 09:57:54,769 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 182 [2020-10-12 09:57:54,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:57:54,771 INFO L225 Difference]: With dead ends: 338 [2020-10-12 09:57:54,771 INFO L226 Difference]: Without dead ends: 189 [2020-10-12 09:57:54,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=498, Invalid=558, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 09:57:54,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-10-12 09:57:54,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2020-10-12 09:57:54,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-12 09:57:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 190 transitions. [2020-10-12 09:57:54,787 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 190 transitions. Word has length 182 [2020-10-12 09:57:54,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:57:54,787 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 190 transitions. [2020-10-12 09:57:54,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-12 09:57:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 190 transitions. [2020-10-12 09:57:54,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-12 09:57:54,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:57:54,789 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:57:54,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-12 09:57:54,789 INFO L427 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:57:54,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:57:54,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1984210992, now seen corresponding path program 39 times [2020-10-12 09:57:54,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:57:54,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505955045] [2020-10-12 09:57:54,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:57:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:57:54,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:54,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:57:59,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:57:59,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-12 09:57:59,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:57:59,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-12 09:57:59,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:57:59,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-12 09:57:59,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-12 09:57:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 09:57:59,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:58:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:00,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:00,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:00,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:58:00,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:00,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:00,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:00,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:00,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:58:00,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:00,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 09:58:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:00,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:00,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:00,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:00,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:00,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:00,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:00,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:00,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:00,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:00,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 09:58:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:00,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:00,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:00,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:00,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:00,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:00,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:00,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:00,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:00,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:00,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 09:58:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:00,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:00,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:00,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:00,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:00,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:00,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:00,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 09:58:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:00,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:00,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:00,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:00,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:00,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:00,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:00,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:00,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 09:58:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:00,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:00,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:00,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:00,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:00,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:00,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:00,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-12 09:58:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:00,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:00,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:00,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:00,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:00,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:00,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:00,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:00,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:00,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:00,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-12 09:58:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:00,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:00,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:00,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:00,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:00,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:00,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:00,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-12 09:58:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:00,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:00,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:00,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:00,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:00,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:00,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:00,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:00,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:00,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:00,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-12 09:58:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:00,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:00,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:00,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:00,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:00,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:00,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:00,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-12 09:58:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:00,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:00,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:00,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:00,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:00,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:00,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:00,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:00,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 20 proven. 900 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2020-10-12 09:58:00,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505955045] [2020-10-12 09:58:00,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:58:00,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-12 09:58:00,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400530825] [2020-10-12 09:58:00,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-12 09:58:00,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:58:00,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-12 09:58:00,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=592, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 09:58:00,645 INFO L87 Difference]: Start difference. First operand 188 states and 190 transitions. Second operand 34 states. [2020-10-12 09:58:00,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:58:00,988 INFO L93 Difference]: Finished difference Result 343 states and 348 transitions. [2020-10-12 09:58:00,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 09:58:00,989 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 185 [2020-10-12 09:58:00,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:58:00,990 INFO L225 Difference]: With dead ends: 343 [2020-10-12 09:58:00,990 INFO L226 Difference]: Without dead ends: 192 [2020-10-12 09:58:00,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=530, Invalid=592, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 09:58:00,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-12 09:58:01,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2020-10-12 09:58:01,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-12 09:58:01,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 193 transitions. [2020-10-12 09:58:01,010 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 193 transitions. Word has length 185 [2020-10-12 09:58:01,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:58:01,011 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 193 transitions. [2020-10-12 09:58:01,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-12 09:58:01,011 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 193 transitions. [2020-10-12 09:58:01,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-12 09:58:01,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:58:01,012 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:58:01,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-12 09:58:01,013 INFO L427 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:58:01,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:58:01,013 INFO L82 PathProgramCache]: Analyzing trace with hash -2077566002, now seen corresponding path program 40 times [2020-10-12 09:58:01,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:58:01,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337861133] [2020-10-12 09:58:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:58:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:01,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:01,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:07,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:07,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 09:58:07,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:58:07,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6789 [2020-10-12 09:58:07,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:07,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-12 09:58:07,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:58:07,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 09:58:07,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:58:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:08,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:08,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:58:08,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:08,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:08,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:58:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 09:58:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:08,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:08,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:08,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:08,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:08,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:08,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 09:58:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:08,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:08,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:08,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:08,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 09:58:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:08,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:08,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:08,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:08,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:08,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:08,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:08,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:08,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:08,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 09:58:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:08,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:08,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:08,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:08,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:08,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:08,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:08,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:08,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:08,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-12 09:58:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:08,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:08,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:08,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:08,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:08,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:08,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-12 09:58:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:08,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:08,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:08,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:08,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:08,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:08,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:08,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:08,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:08,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-12 09:58:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:08,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:08,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:08,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:08,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:08,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:08,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-12 09:58:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:08,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:08,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:08,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:08,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:08,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:08,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:08,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:08,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:08,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-12 09:58:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:08,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:08,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:08,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:08,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:08,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:08,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:08,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:08,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:08,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-12 09:58:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:08,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:08,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:08,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:08,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 09:58:08,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:08,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:08,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1857 backedges. 20 proven. 496 refuted. 0 times theorem prover too weak. 1341 trivial. 0 not checked. [2020-10-12 09:58:08,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337861133] [2020-10-12 09:58:08,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:58:08,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-12 09:58:08,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904693150] [2020-10-12 09:58:08,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-12 09:58:08,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:58:08,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-12 09:58:08,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=627, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 09:58:08,604 INFO L87 Difference]: Start difference. First operand 191 states and 193 transitions. Second operand 35 states. [2020-10-12 09:58:08,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:58:08,876 INFO L93 Difference]: Finished difference Result 348 states and 353 transitions. [2020-10-12 09:58:08,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-12 09:58:08,877 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 188 [2020-10-12 09:58:08,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:58:08,879 INFO L225 Difference]: With dead ends: 348 [2020-10-12 09:58:08,879 INFO L226 Difference]: Without dead ends: 195 [2020-10-12 09:58:08,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=563, Invalid=627, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 09:58:08,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-10-12 09:58:08,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2020-10-12 09:58:08,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-12 09:58:08,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 196 transitions. [2020-10-12 09:58:08,897 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 196 transitions. Word has length 188 [2020-10-12 09:58:08,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:58:08,897 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 196 transitions. [2020-10-12 09:58:08,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-12 09:58:08,897 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 196 transitions. [2020-10-12 09:58:08,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-12 09:58:08,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:58:08,898 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 32, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:58:08,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-12 09:58:08,898 INFO L427 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:58:08,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:58:08,899 INFO L82 PathProgramCache]: Analyzing trace with hash 932498988, now seen corresponding path program 41 times [2020-10-12 09:58:08,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:58:08,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974956836] [2020-10-12 09:58:08,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:58:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:08,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:09,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:13,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:13,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-12 09:58:13,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:58:13,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-12 09:58:13,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 09:58:13,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-12 09:58:13,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 09:58:13,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:58:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:14,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:14,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:14,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:58:14,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:14,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:14,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:14,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:58:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:14,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 09:58:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:14,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:14,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:14,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:14,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:14,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:14,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 09:58:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:14,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:14,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:14,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:14,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:14,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:14,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:14,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 09:58:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:14,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:14,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:14,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:14,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:14,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:14,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:14,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:14,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:14,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:14,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 09:58:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:14,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:14,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:14,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:14,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:14,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:14,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:14,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:14,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:14,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:14,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 09:58:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:14,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:14,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:14,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:14,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:14,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:14,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:14,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:14,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:14,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:14,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 09:58:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:14,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:14,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:14,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:14,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:14,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:14,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:14,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:14,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:14,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:14,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 09:58:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:14,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:14,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:14,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:14,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:14,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:14,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:14,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 09:58:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:14,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:14,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:14,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:14,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:14,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:14,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:14,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:14,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 09:58:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:14,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:14,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:14,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:14,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:14,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-12 09:58:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:14,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:14,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:14,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:14,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:14,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:14,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:14,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:14,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1952 backedges. 20 proven. 1024 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2020-10-12 09:58:14,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974956836] [2020-10-12 09:58:14,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:58:14,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-12 09:58:14,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162098631] [2020-10-12 09:58:14,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-12 09:58:14,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:58:14,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-12 09:58:14,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=597, Invalid=663, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 09:58:14,778 INFO L87 Difference]: Start difference. First operand 194 states and 196 transitions. Second operand 36 states. [2020-10-12 09:58:15,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:58:15,211 INFO L93 Difference]: Finished difference Result 353 states and 358 transitions. [2020-10-12 09:58:15,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-12 09:58:15,211 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 191 [2020-10-12 09:58:15,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:58:15,213 INFO L225 Difference]: With dead ends: 353 [2020-10-12 09:58:15,213 INFO L226 Difference]: Without dead ends: 198 [2020-10-12 09:58:15,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=597, Invalid=663, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 09:58:15,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-12 09:58:15,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 197. [2020-10-12 09:58:15,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-12 09:58:15,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 199 transitions. [2020-10-12 09:58:15,231 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 199 transitions. Word has length 191 [2020-10-12 09:58:15,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:58:15,232 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 199 transitions. [2020-10-12 09:58:15,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-12 09:58:15,232 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 199 transitions. [2020-10-12 09:58:15,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-12 09:58:15,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:58:15,233 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 33, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:58:15,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-12 09:58:15,234 INFO L427 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:58:15,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:58:15,234 INFO L82 PathProgramCache]: Analyzing trace with hash -2016425270, now seen corresponding path program 42 times [2020-10-12 09:58:15,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:58:15,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753866614] [2020-10-12 09:58:15,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:58:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:15,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:15,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:20,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:20,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-12 09:58:20,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:58:20,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-12 09:58:20,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-12 09:58:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:58:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 09:58:20,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:58:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:21,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:58:21,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:21,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:58:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-12 09:58:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:21,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:21,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:21,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:21,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:21,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:21,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 09:58:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:21,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:21,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:21,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:21,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:21,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:21,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:21,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:21,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-12 09:58:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:21,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:21,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:21,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:21,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:21,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:21,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:21,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:21,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 09:58:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:21,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:21,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:21,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:21,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:21,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-12 09:58:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:21,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:21,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:21,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-12 09:58:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:21,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:21,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:21,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:21,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:21,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-12 09:58:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:21,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:21,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:21,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:21,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:21,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:21,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:21,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:21,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-12 09:58:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:21,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:21,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:21,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:21,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:21,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:21,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:21,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:21,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-12 09:58:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:21,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:21,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:21,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:21,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:21,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:21,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:21,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:21,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-12 09:58:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:21,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:21,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:21,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:21,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:21,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:21,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2050 backedges. 20 proven. 561 refuted. 0 times theorem prover too weak. 1469 trivial. 0 not checked. [2020-10-12 09:58:21,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753866614] [2020-10-12 09:58:21,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:58:21,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-12 09:58:21,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073531524] [2020-10-12 09:58:21,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-12 09:58:21,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:58:21,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-12 09:58:21,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=632, Invalid=700, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 09:58:21,204 INFO L87 Difference]: Start difference. First operand 197 states and 199 transitions. Second operand 37 states. [2020-10-12 09:58:21,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:58:21,555 INFO L93 Difference]: Finished difference Result 358 states and 363 transitions. [2020-10-12 09:58:21,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 09:58:21,556 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 194 [2020-10-12 09:58:21,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:58:21,558 INFO L225 Difference]: With dead ends: 358 [2020-10-12 09:58:21,558 INFO L226 Difference]: Without dead ends: 201 [2020-10-12 09:58:21,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=632, Invalid=700, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 09:58:21,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-10-12 09:58:21,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 200. [2020-10-12 09:58:21,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-12 09:58:21,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 202 transitions. [2020-10-12 09:58:21,577 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 202 transitions. Word has length 194 [2020-10-12 09:58:21,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:58:21,577 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 202 transitions. [2020-10-12 09:58:21,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-12 09:58:21,578 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 202 transitions. [2020-10-12 09:58:21,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-12 09:58:21,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:58:21,579 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 34, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:58:21,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-12 09:58:21,580 INFO L427 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:58:21,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:58:21,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1707829720, now seen corresponding path program 43 times [2020-10-12 09:58:21,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:58:21,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037167483] [2020-10-12 09:58:21,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:58:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:21,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:21,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:26,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:26,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-12 09:58:26,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:58:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-12 09:58:26,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-12 09:58:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:58:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 09:58:26,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:58:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:27,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:27,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:27,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:58:27,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:27,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:27,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:27,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:27,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:58:27,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:27,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 09:58:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:27,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:27,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:27,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:27,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:27,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:27,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:27,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:27,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 09:58:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:27,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:27,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:27,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:27,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:27,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:27,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:27,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 09:58:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:27,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:27,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:27,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:27,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:27,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:27,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:27,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 09:58:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:27,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:27,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:27,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:27,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:27,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:27,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:27,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:27,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:27,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:27,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-12 09:58:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:27,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:27,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:27,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:27,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:27,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:27,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:27,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:27,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:27,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:27,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-12 09:58:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:27,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:27,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:27,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:27,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:27,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:27,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-12 09:58:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:27,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:27,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:27,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:27,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:27,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:27,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:27,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:27,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:27,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:27,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-12 09:58:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:27,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:27,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:27,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:27,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:27,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:27,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:27,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:27,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-12 09:58:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:27,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:27,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:27,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:27,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:27,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:27,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:27,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:27,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-12 09:58:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:27,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:27,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:27,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:27,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:27,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:27,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:27,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:27,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:27,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:27,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:27,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2151 backedges. 20 proven. 595 refuted. 0 times theorem prover too weak. 1536 trivial. 0 not checked. [2020-10-12 09:58:27,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037167483] [2020-10-12 09:58:27,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:58:27,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-12 09:58:27,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622348318] [2020-10-12 09:58:27,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-12 09:58:27,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:58:27,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-12 09:58:27,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=738, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 09:58:27,596 INFO L87 Difference]: Start difference. First operand 200 states and 202 transitions. Second operand 38 states. [2020-10-12 09:58:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:58:28,092 INFO L93 Difference]: Finished difference Result 363 states and 368 transitions. [2020-10-12 09:58:28,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-12 09:58:28,092 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 197 [2020-10-12 09:58:28,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:58:28,094 INFO L225 Difference]: With dead ends: 363 [2020-10-12 09:58:28,094 INFO L226 Difference]: Without dead ends: 204 [2020-10-12 09:58:28,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=668, Invalid=738, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 09:58:28,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-12 09:58:28,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 203. [2020-10-12 09:58:28,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-12 09:58:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 205 transitions. [2020-10-12 09:58:28,118 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 205 transitions. Word has length 197 [2020-10-12 09:58:28,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:58:28,118 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 205 transitions. [2020-10-12 09:58:28,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-12 09:58:28,118 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 205 transitions. [2020-10-12 09:58:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-12 09:58:28,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:58:28,120 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 35, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:58:28,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-12 09:58:28,120 INFO L427 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:58:28,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:58:28,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1329716166, now seen corresponding path program 44 times [2020-10-12 09:58:28,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:58:28,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595652830] [2020-10-12 09:58:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:58:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:28,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:28,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:33,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:33,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-12 09:58:33,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:58:33,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-12 09:58:33,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-12 09:58:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:58:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 09:58:33,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:58:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:34,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:58:34,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:34,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:34,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:34,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:34,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:58:34,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:34,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-12 09:58:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:34,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:34,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:34,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:34,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:34,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:34,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:34,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:34,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 09:58:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:34,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:34,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:34,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:34,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-12 09:58:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:34,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:34,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:34,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:34,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:34,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:34,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 09:58:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:34,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:34,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:34,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:58:34,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:34,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:34,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:34,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:34,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-12 09:58:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:34,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:34,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:34,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:34,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:34,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:34,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:34,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:34,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-12 09:58:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:34,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:34,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:34,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:34,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:34,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:34,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:34,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:34,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-12 09:58:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:34,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:34,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:34,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:34,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:34,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:34,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:34,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:34,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-12 09:58:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:34,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:34,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:34,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:34,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:34,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:34,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:34,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:34,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-12 09:58:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:34,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:34,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:34,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:34,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:34,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:34,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:34,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:34,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-12 09:58:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:34,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:34,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:34,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:34,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:34,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:34,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2255 backedges. 20 proven. 630 refuted. 0 times theorem prover too weak. 1605 trivial. 0 not checked. [2020-10-12 09:58:34,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595652830] [2020-10-12 09:58:34,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:58:34,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-12 09:58:34,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928365633] [2020-10-12 09:58:34,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-12 09:58:34,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:58:34,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-12 09:58:34,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=705, Invalid=777, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 09:58:34,135 INFO L87 Difference]: Start difference. First operand 203 states and 205 transitions. Second operand 39 states. [2020-10-12 09:58:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:58:34,518 INFO L93 Difference]: Finished difference Result 368 states and 373 transitions. [2020-10-12 09:58:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 09:58:34,519 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 200 [2020-10-12 09:58:34,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:58:34,521 INFO L225 Difference]: With dead ends: 368 [2020-10-12 09:58:34,521 INFO L226 Difference]: Without dead ends: 207 [2020-10-12 09:58:34,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=705, Invalid=777, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 09:58:34,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-10-12 09:58:34,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 206. [2020-10-12 09:58:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-12 09:58:34,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 208 transitions. [2020-10-12 09:58:34,538 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 208 transitions. Word has length 200 [2020-10-12 09:58:34,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:58:34,539 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 208 transitions. [2020-10-12 09:58:34,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-12 09:58:34,539 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 208 transitions. [2020-10-12 09:58:34,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-12 09:58:34,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:58:34,540 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 36, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:58:34,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-12 09:58:34,540 INFO L427 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:58:34,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:58:34,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1430454308, now seen corresponding path program 45 times [2020-10-12 09:58:34,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:58:34,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610749555] [2020-10-12 09:58:34,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:58:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:34,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:34,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:39,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:39,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-12 09:58:39,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:58:39,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-12 09:58:39,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:39,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 09:58:39,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:58:39,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 09:58:39,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:58:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:40,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:40,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:40,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:58:40,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:40,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:58:40,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:58:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:40,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 09:58:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:40,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:40,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:40,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:40,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:40,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:40,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:40,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:40,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:40,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:40,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 09:58:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:40,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:40,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:40,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:40,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:40,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:40,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:40,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:40,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:40,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:40,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 09:58:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:40,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:40,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:40,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:40,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:40,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:40,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:40,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:40,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:40,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 09:58:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:40,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:40,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:40,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:40,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:40,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:40,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:40,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:40,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:40,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 09:58:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:40,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:40,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:40,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:40,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:40,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:40,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:40,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:40,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:40,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:40,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 09:58:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:40,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:40,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:40,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:40,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:40,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:40,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:40,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:40,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:40,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:40,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 09:58:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:40,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:40,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:40,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:40,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:40,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:40,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:40,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:40,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 09:58:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:40,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:40,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:40,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:40,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:40,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:40,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:40,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:40,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:40,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:40,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-12 09:58:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:40,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:40,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:40,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:40,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:40,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:40,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:40,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-12 09:58:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:40,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:40,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:40,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:58:40,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:58:40,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:58:40,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:58:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:58:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:58:40,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:58:40,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 20 proven. 666 refuted. 0 times theorem prover too weak. 1676 trivial. 0 not checked. [2020-10-12 09:58:40,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610749555] [2020-10-12 09:58:40,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:58:40,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-12 09:58:40,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840528748] [2020-10-12 09:58:40,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-12 09:58:40,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:58:40,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-12 09:58:40,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=743, Invalid=817, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 09:58:40,677 INFO L87 Difference]: Start difference. First operand 206 states and 208 transitions. Second operand 40 states. [2020-10-12 09:58:41,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:58:41,200 INFO L93 Difference]: Finished difference Result 373 states and 378 transitions. [2020-10-12 09:58:41,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-12 09:58:41,201 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 203 [2020-10-12 09:58:41,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:58:41,203 INFO L225 Difference]: With dead ends: 373 [2020-10-12 09:58:41,203 INFO L226 Difference]: Without dead ends: 210 [2020-10-12 09:58:41,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=743, Invalid=817, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 09:58:41,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-10-12 09:58:41,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2020-10-12 09:58:41,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-12 09:58:41,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 211 transitions. [2020-10-12 09:58:41,226 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 211 transitions. Word has length 203 [2020-10-12 09:58:41,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:58:41,227 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 211 transitions. [2020-10-12 09:58:41,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-12 09:58:41,227 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 211 transitions. [2020-10-12 09:58:41,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-12 09:58:41,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:58:41,229 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 37, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:58:41,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-12 09:58:41,229 INFO L427 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:58:41,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:58:41,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1734348482, now seen corresponding path program 46 times [2020-10-12 09:58:41,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:58:41,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842803541] [2020-10-12 09:58:41,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:58:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:58:41,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:41,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:58:46,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:58:46,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-12 09:58:46,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:58:46,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-12 09:58:46,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:58:46,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-12 09:58:46,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:58:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 09:58:46,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0