/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 SingleStatement --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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_15-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:46:01,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:46:01,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:46:01,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:46:01,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:46:01,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:46:01,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:46:01,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:46:01,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:46:01,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:46:01,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:46:01,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:46:01,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:46:01,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:46:01,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:46:01,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:46:01,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:46:01,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:46:01,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:46:01,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:46:01,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:46:01,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:46:01,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:46:01,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:46:01,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:46:01,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:46:01,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:46:01,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:46:01,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:46:01,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:46:01,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:46:01,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:46:01,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:46:01,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:46:01,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:46:01,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:46:01,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:46:01,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:46:01,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:46:01,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:46:01,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:46:01,178 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 [2020-09-24 23:46:01,207 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:46:01,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:46:01,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:46:01,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:46:01,209 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:46:01,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:46:01,209 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:46:01,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:46:01,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:46:01,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:46:01,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:46:01,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:46:01,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:46:01,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:46:01,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:46:01,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:46:01,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:46:01,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:46:01,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:46:01,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:46:01,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:46:01,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:46:01,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:46:01,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:46:01,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:46:01,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:46:01,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:46:01,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:46:01,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:46:01,215 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 -> SingleStatement 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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:46:01,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:46:01,725 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:46:01,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:46:01,732 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:46:01,732 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:46:01,733 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_15-2.c [2020-09-24 23:46:01,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c701fc2b/e4804036b2934f1c83aca886062918c6/FLAG38018d35d [2020-09-24 23:46:02,413 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:46:02,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_15-2.c [2020-09-24 23:46:02,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c701fc2b/e4804036b2934f1c83aca886062918c6/FLAG38018d35d [2020-09-24 23:46:02,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c701fc2b/e4804036b2934f1c83aca886062918c6 [2020-09-24 23:46:02,803 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:46:02,810 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:46:02,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:46:02,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:46:02,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:46:02,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:46:02" (1/1) ... [2020-09-24 23:46:02,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec1211b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02, skipping insertion in model container [2020-09-24 23:46:02,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:46:02" (1/1) ... [2020-09-24 23:46:02,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:46:02,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:46:03,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:46:03,075 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:46:03,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:46:03,119 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:46:03,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:03 WrapperNode [2020-09-24 23:46:03,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:46:03,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:46:03,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:46:03,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:46:03,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:03" (1/1) ... [2020-09-24 23:46:03,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:03" (1/1) ... [2020-09-24 23:46:03,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:03" (1/1) ... [2020-09-24 23:46:03,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:03" (1/1) ... [2020-09-24 23:46:03,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:03" (1/1) ... [2020-09-24 23:46:03,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:03" (1/1) ... [2020-09-24 23:46:03,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:03" (1/1) ... [2020-09-24 23:46:03,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:46:03,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:46:03,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:46:03,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:46:03,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:03" (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 [2020-09-24 23:46:03,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:46:03,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:46:03,335 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-24 23:46:03,335 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:46:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:46:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:46:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-24 23:46:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:46:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:46:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:46:03,612 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:46:03,613 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:46:03,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:46:03 BoogieIcfgContainer [2020-09-24 23:46:03,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:46:03,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:46:03,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:46:03,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:46:03,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:46:02" (1/3) ... [2020-09-24 23:46:03,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7d5814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:46:03, skipping insertion in model container [2020-09-24 23:46:03,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:03" (2/3) ... [2020-09-24 23:46:03,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7d5814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:46:03, skipping insertion in model container [2020-09-24 23:46:03,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:46:03" (3/3) ... [2020-09-24 23:46:03,636 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_15-2.c [2020-09-24 23:46:03,658 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:46:03,670 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:46:03,690 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:46:03,720 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:46:03,720 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:46:03,720 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:46:03,721 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:46:03,721 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:46:03,721 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:46:03,721 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:46:03,721 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:46:03,741 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-24 23:46:03,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 23:46:03,748 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:03,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:03,750 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:03,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:03,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-24 23:46:03,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:03,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143976793] [2020-09-24 23:46:03,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:03,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:03,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:04,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 23:46:04,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:04,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-24 23:46:04,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:46:04,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:46:04,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:04,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:04,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:04,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:04,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:46:04,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:04,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:04,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:04,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:04,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:04,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 23:46:04,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:04,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:04,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:04,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:46:04,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143976793] [2020-09-24 23:46:04,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:46:04,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:46:04,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563243112] [2020-09-24 23:46:04,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:46:04,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:04,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:46:04,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:46:04,353 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-24 23:46:04,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:04,464 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-24 23:46:04,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:46:04,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 23:46:04,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:04,481 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:46:04,481 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 23:46:04,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:46:04,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 23:46:04,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 23:46:04,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:46:04,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:46:04,541 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-24 23:46:04,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:04,542 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:46:04,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:46:04,542 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:46:04,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 23:46:04,545 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:04,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:04,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:46:04,546 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:04,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:04,546 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-24 23:46:04,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:04,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603291170] [2020-09-24 23:46:04,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:04,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:04,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:46:04,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:04,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-24 23:46:04,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:04,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:04,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:04,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:04,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:04,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:04,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:04,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:46:04,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:04,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:04,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:04,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:04,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:04,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:04,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:04,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:04,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:04,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:46:04,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:04,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:04,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:04,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:04,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:04,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:46:04,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603291170] [2020-09-24 23:46:04,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:46:04,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:46:04,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848391077] [2020-09-24 23:46:04,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:46:04,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:04,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:46:04,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:46:04,841 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-24 23:46:04,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:04,927 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-24 23:46:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:46:04,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 23:46:04,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:04,932 INFO L225 Difference]: With dead ends: 36 [2020-09-24 23:46:04,932 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 23:46:04,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:46:04,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 23:46:04,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-24 23:46:04,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:46:04,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:46:04,950 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-24 23:46:04,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:04,951 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:46:04,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:46:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:46:04,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 23:46:04,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:04,955 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:04,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:46:04,956 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:04,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:04,956 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-24 23:46:04,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:04,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070377766] [2020-09-24 23:46:04,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:04,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 23:46:06,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:06,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1939 [2020-09-24 23:46:06,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:46:06,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:06,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:06,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:06,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:06,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:06,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:06,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:06,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:06,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:07,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:07,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:07,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 23:46:07,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:07,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:07,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:07,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:46:07,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:07,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:07,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:07,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:07,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:07,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:46:07,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:07,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:07,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:07,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:07,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:07,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:07,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:07,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:46:07,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:07,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:07,282 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 23:46:07,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070377766] [2020-09-24 23:46:07,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:07,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:46:07,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121228910] [2020-09-24 23:46:07,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:46:07,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:07,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:46:07,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:46:07,292 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-24 23:46:07,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:07,511 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-24 23:46:07,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:46:07,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 23:46:07,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:07,515 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:46:07,516 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 23:46:07,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:46:07,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 23:46:07,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-24 23:46:07,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 23:46:07,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 23:46:07,539 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-24 23:46:07,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:07,541 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 23:46:07,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:46:07,541 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 23:46:07,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 23:46:07,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:07,546 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:07,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:46:07,547 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:07,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:07,548 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-24 23:46:07,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:07,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071172275] [2020-09-24 23:46:07,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:07,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:09,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 23:46:09,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:46:09,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1833 [2020-09-24 23:46:09,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:09,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:09,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:09,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:46:09,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:09,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:09,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:09,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:09,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:09,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:46:09,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:09,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:09,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:09,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:10,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:10,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:46:10,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-09-24 23:46:10,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:46:10,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:10,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:10,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:10,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:10,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:10,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:10,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:46:10,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:10,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:10,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:10,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:10,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:10,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:10,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:10,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:10,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:46:10,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:10,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:10,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:10,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:10,107 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:46:10,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071172275] [2020-09-24 23:46:10,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:10,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 23:46:10,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091955655] [2020-09-24 23:46:10,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:46:10,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:10,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:46:10,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:46:10,112 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 6 states. [2020-09-24 23:46:10,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:10,218 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-09-24 23:46:10,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:46:10,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 23:46:10,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:10,224 INFO L225 Difference]: With dead ends: 52 [2020-09-24 23:46:10,224 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 23:46:10,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:46:10,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 23:46:10,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-09-24 23:46:10,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 23:46:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 23:46:10,241 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 35 [2020-09-24 23:46:10,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:10,242 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 23:46:10,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:46:10,245 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 23:46:10,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 23:46:10,251 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:10,253 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:10,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:46:10,253 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:10,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:10,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1767822624, now seen corresponding path program 2 times [2020-09-24 23:46:10,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:10,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928977898] [2020-09-24 23:46:10,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:10,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:10,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:10,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:10,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:10,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:10,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:10,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:10,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:15,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-24 23:46:15,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 23:46:15,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 23:46:15,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:46:15,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:15,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:15,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:15,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:15,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:15,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:15,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:15,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:15,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:15,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:15,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:15,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:15,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:16,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:16,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:16,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:20,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:20,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-24 23:46:20,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 23:46:20,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 23:46:20,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:20,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:20,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:46:20,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 23:46:20,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:20,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:20,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:20,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:20,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:20,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:20,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:20,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 23:46:20,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:20,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:46:20,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:20,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:46:20,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:20,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:20,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:20,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:20,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:20,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:20,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:46:20,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:20,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:20,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:20,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:20,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:20,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:20,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:20,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:46:20,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:20,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:20,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:46:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:20,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:20,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:20,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:20,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:21,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 23:46:21,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:46:21,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 776 [2020-09-24 23:46:21,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:46:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 23:46:21,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:21,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:21,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:21,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:21,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:21,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 23:46:21,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:46:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:46:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:21,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:21,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:21,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:21,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:21,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:46:21,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:21,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:21,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:21,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:21,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:21,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:21,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:21,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:21,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:21,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:46:21,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:21,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:21,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:21,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:21,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:21,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:46:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:21,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:21,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:21,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:21,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:46:21,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:46:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:21,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:21,541 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 72 proven. 42 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-09-24 23:46:21,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928977898] [2020-09-24 23:46:21,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:21,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 23:46:21,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093501726] [2020-09-24 23:46:21,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:46:21,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:21,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:46:21,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:46:21,546 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 9 states. [2020-09-24 23:46:21,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:21,685 INFO L93 Difference]: Finished difference Result 68 states and 92 transitions. [2020-09-24 23:46:21,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:46:21,686 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-09-24 23:46:21,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:21,688 INFO L225 Difference]: With dead ends: 68 [2020-09-24 23:46:21,688 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 23:46:21,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:46:21,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 23:46:21,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 23:46:21,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 23:46:21,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2020-09-24 23:46:21,698 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 84 [2020-09-24 23:46:21,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:21,698 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2020-09-24 23:46:21,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:46:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2020-09-24 23:46:21,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-24 23:46:21,701 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:21,701 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:21,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:46:21,701 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:21,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:21,702 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 1 times [2020-09-24 23:46:21,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:21,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641130599] [2020-09-24 23:46:21,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:21,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:22,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:26,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 23:46:26,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 23:46:26,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:46:26,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:26,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:26,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:26,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 23:46:26,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:26,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:26,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:26,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:26,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:26,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:26,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:26,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:26,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:26,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:26,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:26,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:26,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:30,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:31,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:31,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 23:46:31,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 23:46:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 23:46:31,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:46:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:46:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 23:46:31,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:31,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:31,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:31,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:31,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:32,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:46:32,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:32,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 529 [2020-09-24 23:46:32,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:32,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:32,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:32,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:46:32,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:32,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:32,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:32,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:32,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:32,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:46:32,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:32,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:32,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:32,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:32,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:32,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:32,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:32,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:32,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:32,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:46:32,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:32,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:32,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:32,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:32,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:32,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 23:46:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:32,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:33,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:33,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 23:46:33,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:46:33,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 676 [2020-09-24 23:46:33,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:33,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:33,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:33,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:46:33,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:33,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:33,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:33,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:33,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:33,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:33,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:46:33,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-24 23:46:33,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:33,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:46:33,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:33,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:46:33,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:33,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:33,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:33,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:33,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:33,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:33,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:33,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:46:33,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:33,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:33,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:33,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:33,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:33,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:33,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:33,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:33,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:33,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:33,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:46:33,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:33,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:33,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:33,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:33,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:33,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 23:46:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:33,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:33,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:33,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:33,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:33,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:46:33,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:33,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:33,630 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 76 proven. 83 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-09-24 23:46:33,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641130599] [2020-09-24 23:46:33,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:33,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 23:46:33,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172221428] [2020-09-24 23:46:33,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 23:46:33,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:33,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 23:46:33,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:46:33,634 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand 17 states. [2020-09-24 23:46:33,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:33,920 INFO L93 Difference]: Finished difference Result 93 states and 141 transitions. [2020-09-24 23:46:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:46:33,921 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 87 [2020-09-24 23:46:33,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:33,924 INFO L225 Difference]: With dead ends: 93 [2020-09-24 23:46:33,924 INFO L226 Difference]: Without dead ends: 61 [2020-09-24 23:46:33,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2020-09-24 23:46:33,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-24 23:46:33,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2020-09-24 23:46:33,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 23:46:33,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2020-09-24 23:46:33,936 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 87 [2020-09-24 23:46:33,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:33,936 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2020-09-24 23:46:33,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 23:46:33,937 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2020-09-24 23:46:33,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-24 23:46:33,938 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:33,938 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:33,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:46:33,939 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:33,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:33,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1068467993, now seen corresponding path program 2 times [2020-09-24 23:46:33,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:33,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239169545] [2020-09-24 23:46:33,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:33,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:33,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:33,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:34,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:34,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:34,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:38,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:38,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-24 23:46:38,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:46:38,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:46:38,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:38,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:38,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:38,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:46:38,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:38,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:38,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:38,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:38,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:38,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:38,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:38,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:38,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:38,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:38,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:38,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:40,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:40,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:43,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 23:46:43,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-24 23:46:43,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 23:46:43,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:46:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:46:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:46:43,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:44,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:44,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:44,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:46:44,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:44,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-24 23:46:44,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:46:44,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:44,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:44,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:44,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:44,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:44,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:46:44,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:44,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:44,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:44,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:44,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:44,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:44,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:44,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:44,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:44,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:46:44,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:44,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 23:46:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:44,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:44,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:49,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:46:49,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:46:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:46:49,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:49,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:49,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 23:46:49,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:49,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:49,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:49,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:46:49,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:49,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-24 23:46:49,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:49,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:49,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:49,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:46:49,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:49,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:49,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:49,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:49,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:49,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:49,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:49,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:49,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:49,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:49,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:49,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:49,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:49,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:49,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:49,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:49,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:49,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:49,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:49,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:49,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:49,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 23:46:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:49,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:49,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:49,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:49,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:46:49,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:49,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:49,538 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 56 proven. 83 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-09-24 23:46:49,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239169545] [2020-09-24 23:46:49,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:49,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 23:46:49,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815156583] [2020-09-24 23:46:49,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:46:49,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:49,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:46:49,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:46:49,542 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand 11 states. [2020-09-24 23:46:49,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:49,839 INFO L93 Difference]: Finished difference Result 100 states and 131 transitions. [2020-09-24 23:46:49,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 23:46:49,840 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 89 [2020-09-24 23:46:49,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:49,841 INFO L225 Difference]: With dead ends: 100 [2020-09-24 23:46:49,841 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 23:46:49,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:46:49,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 23:46:49,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-24 23:46:49,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 23:46:49,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2020-09-24 23:46:49,862 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 89 [2020-09-24 23:46:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:49,862 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2020-09-24 23:46:49,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:46:49,863 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2020-09-24 23:46:49,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-24 23:46:49,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:49,864 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:49,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 23:46:49,865 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:49,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:49,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 2 times [2020-09-24 23:46:49,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:49,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493968100] [2020-09-24 23:46:49,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:49,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:51,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:51,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:54,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:54,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-24 23:46:54,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 23:46:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 23:46:54,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:46:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 23:46:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:54,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:54,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:54,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:54,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:54,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:54,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:54,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:54,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:54,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:54,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:55,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:56,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:57,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking...