/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Fibonacci01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:24:09,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:24:09,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:24:09,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:24:09,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:24:09,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:24:09,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:24:09,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:24:09,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:24:09,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:24:09,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:24:09,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:24:09,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:24:09,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:24:09,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:24:09,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:24:09,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:24:09,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:24:09,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:24:09,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:24:09,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:24:09,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:24:09,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:24:09,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:24:09,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:24:09,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:24:09,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:24:09,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:24:09,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:24:09,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:24:09,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:24:09,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:24:09,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:24:09,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:24:09,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:24:09,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:24:09,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:24:09,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:24:09,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:24:09,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:24:09,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:24:09,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 07:24:09,191 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:24:09,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:24:09,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:24:09,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:24:09,193 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:24:09,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:24:09,194 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:24:09,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:24:09,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:24:09,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:24:09,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:24:09,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:24:09,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:24:09,195 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:24:09,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:24:09,195 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:24:09,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:24:09,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:24:09,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:24:09,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:24:09,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:24:09,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:24:09,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:24:09,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:24:09,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:24:09,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:24:09,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:24:09,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:24:09,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:24:09,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:24:09,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:24:09,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:24:09,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:24:09,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:24:09,517 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:24:09,518 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci01-1.c [2020-10-14 07:24:09,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9a2b62b0/90ffb9505e9c4834a579d689dbba6263/FLAG6b6d352ee [2020-10-14 07:24:10,048 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:24:10,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci01-1.c [2020-10-14 07:24:10,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9a2b62b0/90ffb9505e9c4834a579d689dbba6263/FLAG6b6d352ee [2020-10-14 07:24:10,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9a2b62b0/90ffb9505e9c4834a579d689dbba6263 [2020-10-14 07:24:10,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:24:10,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:24:10,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:24:10,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:24:10,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:24:10,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:24:10" (1/1) ... [2020-10-14 07:24:10,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ba14b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:10, skipping insertion in model container [2020-10-14 07:24:10,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:24:10" (1/1) ... [2020-10-14 07:24:10,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:24:10,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:24:10,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:24:10,697 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:24:10,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:24:10,724 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:24:10,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:10 WrapperNode [2020-10-14 07:24:10,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:24:10,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:24:10,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:24:10,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:24:10,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:10" (1/1) ... [2020-10-14 07:24:10,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:10" (1/1) ... [2020-10-14 07:24:10,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:10" (1/1) ... [2020-10-14 07:24:10,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:10" (1/1) ... [2020-10-14 07:24:10,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:10" (1/1) ... [2020-10-14 07:24:10,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:10" (1/1) ... [2020-10-14 07:24:10,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:10" (1/1) ... [2020-10-14 07:24:10,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:24:10,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:24:10,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:24:10,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:24:10,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:24:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:24:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:24:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-10-14 07:24:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:24:10,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:24:10,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:24:10,886 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-10-14 07:24:10,886 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:24:10,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:24:10,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:24:11,055 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:24:11,055 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 07:24:11,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:24:11 BoogieIcfgContainer [2020-10-14 07:24:11,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:24:11,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:24:11,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:24:11,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:24:11,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:24:10" (1/3) ... [2020-10-14 07:24:11,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed61b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:24:11, skipping insertion in model container [2020-10-14 07:24:11,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:10" (2/3) ... [2020-10-14 07:24:11,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed61b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:24:11, skipping insertion in model container [2020-10-14 07:24:11,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:24:11" (3/3) ... [2020-10-14 07:24:11,066 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci01-1.c [2020-10-14 07:24:11,076 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:24:11,083 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:24:11,096 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:24:11,115 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:24:11,115 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:24:11,115 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:24:11,115 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:24:11,115 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:24:11,115 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:24:11,116 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:24:11,116 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:24:11,130 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-14 07:24:11,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 07:24:11,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:24:11,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:24:11,136 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:24:11,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:24:11,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1900973920, now seen corresponding path program 1 times [2020-10-14 07:24:11,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:24:11,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279967993] [2020-10-14 07:24:11,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:24:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:11,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:11,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:11,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 07:24:11,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:11,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 07:24:11,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:11,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:24:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:24:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:24:11,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:24:11,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:24:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:11,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:11,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:11,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:24:11,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:11,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:24:11,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:11,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:11,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:24:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:11,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:11,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:11,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:11,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 07:24:11,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:11,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:24:11,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:11,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:24:11,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:11,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:24:11,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279967993] [2020-10-14 07:24:11,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:24:11,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 07:24:11,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106960293] [2020-10-14 07:24:11,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 07:24:11,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:24:11,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 07:24:11,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 07:24:11,640 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 6 states. [2020-10-14 07:24:11,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:24:11,813 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2020-10-14 07:24:11,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 07:24:11,815 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-14 07:24:11,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:24:11,826 INFO L225 Difference]: With dead ends: 36 [2020-10-14 07:24:11,826 INFO L226 Difference]: Without dead ends: 22 [2020-10-14 07:24:11,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:24:11,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-14 07:24:11,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-14 07:24:11,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-14 07:24:11,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-10-14 07:24:11,871 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 14 [2020-10-14 07:24:11,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:24:11,872 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-14 07:24:11,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 07:24:11,872 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-10-14 07:24:11,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-14 07:24:11,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:24:11,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:24:11,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:24:11,875 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:24:11,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:24:11,876 INFO L82 PathProgramCache]: Analyzing trace with hash -509871596, now seen corresponding path program 1 times [2020-10-14 07:24:11,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:24:11,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270413299] [2020-10-14 07:24:11,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:24:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:11,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:11,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:11,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 07:24:11,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:11,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 07:24:11,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:11,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:11,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:24:11,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:24:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 07:24:11,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:12,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:24:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:12,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:12,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:12,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:24:12,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:12,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:24:12,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:12,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:12,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:12,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:24:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:12,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:12,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:12,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:12,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:12,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 07:24:12,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:12,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:12,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:24:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:24:12,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:12,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:24:12,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270413299] [2020-10-14 07:24:12,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:24:12,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 07:24:12,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220856290] [2020-10-14 07:24:12,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 07:24:12,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:24:12,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 07:24:12,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 07:24:12,081 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 6 states. [2020-10-14 07:24:12,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:24:12,159 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2020-10-14 07:24:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 07:24:12,160 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-14 07:24:12,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:24:12,161 INFO L225 Difference]: With dead ends: 28 [2020-10-14 07:24:12,162 INFO L226 Difference]: Without dead ends: 24 [2020-10-14 07:24:12,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:24:12,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-14 07:24:12,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2020-10-14 07:24:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-14 07:24:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-10-14 07:24:12,171 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2020-10-14 07:24:12,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:24:12,171 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-14 07:24:12,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 07:24:12,172 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-10-14 07:24:12,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 07:24:12,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:24:12,173 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:24:12,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:24:12,174 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:24:12,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:24:12,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1203666899, now seen corresponding path program 1 times [2020-10-14 07:24:12,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:24:12,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802276288] [2020-10-14 07:24:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:24:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:12,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:12,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:12,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:12,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 07:24:12,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:24:12,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-14 07:24:12,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:12,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:24:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:24:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:24:12,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:12,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:24:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:12,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:12,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:12,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:24:12,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:12,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:24:12,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:12,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:12,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:12,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:12,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:24:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:12,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:12,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:12,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 07:24:12,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:12,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 07:24:12,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:12,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:24:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:24:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:24:12,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:12,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:12,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:12,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:12,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:12,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:12,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:24:12,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:12,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:12,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:24:12,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:24:12,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:24:12,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:12,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:24:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:12,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:12,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:12,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:12,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:12,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:24:12,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:12,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:12,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:12,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:24:12,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:12,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:24:12,652 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 07:24:12,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802276288] [2020-10-14 07:24:12,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:24:12,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 07:24:12,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31345035] [2020-10-14 07:24:12,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 07:24:12,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:24:12,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 07:24:12,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 07:24:12,660 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 6 states. [2020-10-14 07:24:12,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:24:12,789 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2020-10-14 07:24:12,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 07:24:12,792 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-10-14 07:24:12,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:24:12,795 INFO L225 Difference]: With dead ends: 39 [2020-10-14 07:24:12,796 INFO L226 Difference]: Without dead ends: 24 [2020-10-14 07:24:12,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:24:12,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-14 07:24:12,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-14 07:24:12,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-14 07:24:12,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2020-10-14 07:24:12,814 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 27 [2020-10-14 07:24:12,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:24:12,814 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-10-14 07:24:12,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 07:24:12,815 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-10-14 07:24:12,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 07:24:12,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:24:12,817 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:24:12,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:24:12,818 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:24:12,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:24:12,818 INFO L82 PathProgramCache]: Analyzing trace with hash -603082491, now seen corresponding path program 1 times [2020-10-14 07:24:12,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:24:12,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000303972] [2020-10-14 07:24:12,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:24:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:12,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:12,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:13,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:24:13,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:24:13,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-14 07:24:13,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:13,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:24:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:24:13,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 07:24:13,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:13,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:24:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:13,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:13,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:24:13,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:13,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:24:13,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:13,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:13,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:13,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:13,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:13,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:13,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:24:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:13,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:13,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:24:13,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:24:13,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-14 07:24:13,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:13,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:13,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:24:13,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:13,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:24:13,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:13,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:13,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:13,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:13,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:13,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:24:13,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:13,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:24:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:24:13,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:13,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:24:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:13,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:13,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:13,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:13,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:24:13,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:13,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:24:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:24:13,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 07:24:13,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000303972] [2020-10-14 07:24:13,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:24:13,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 07:24:13,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492348941] [2020-10-14 07:24:13,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:24:13,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:24:13,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:24:13,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:24:13,486 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 11 states. [2020-10-14 07:24:13,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:24:13,660 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2020-10-14 07:24:13,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 07:24:13,660 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2020-10-14 07:24:13,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:24:13,662 INFO L225 Difference]: With dead ends: 34 [2020-10-14 07:24:13,662 INFO L226 Difference]: Without dead ends: 30 [2020-10-14 07:24:13,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:24:13,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-14 07:24:13,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-10-14 07:24:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-14 07:24:13,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2020-10-14 07:24:13,671 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 28 [2020-10-14 07:24:13,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:24:13,672 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2020-10-14 07:24:13,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:24:13,672 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2020-10-14 07:24:13,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-14 07:24:13,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:24:13,674 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:24:13,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:24:13,674 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:24:13,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:24:13,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1116968431, now seen corresponding path program 1 times [2020-10-14 07:24:13,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:24:13,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303328502] [2020-10-14 07:24:13,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:24:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:13,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:13,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:24:13,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:24:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 07:24:13,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:13,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:24:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 07:24:13,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 07:24:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:13,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:24:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:13,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:13,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:24:13,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:13,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:24:13,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:13,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:13,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:13,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:13,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:13,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:13,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:24:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:13,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:13,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 07:24:13,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:24:13,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 07:24:13,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:13,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:13,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:24:13,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:24:13,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 07:24:13,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:13,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:13,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:13,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:13,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:13,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:24:13,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:13,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:24:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:24:13,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:13,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:24:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:13,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:13,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:14,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:14,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:14,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:24:14,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:24:14,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:14,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:24:14,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:24:14,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:24:14,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:14,026 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 07:24:14,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303328502] [2020-10-14 07:24:14,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:24:14,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 07:24:14,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779537929] [2020-10-14 07:24:14,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:24:14,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:24:14,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:24:14,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:24:14,029 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand 7 states. [2020-10-14 07:24:14,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:24:14,202 INFO L93 Difference]: Finished difference Result 54 states and 76 transitions. [2020-10-14 07:24:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:24:14,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-10-14 07:24:14,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:24:14,204 INFO L225 Difference]: With dead ends: 54 [2020-10-14 07:24:14,204 INFO L226 Difference]: Without dead ends: 31 [2020-10-14 07:24:14,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:24:14,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-14 07:24:14,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-14 07:24:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-14 07:24:14,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2020-10-14 07:24:14,214 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 29 [2020-10-14 07:24:14,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:24:14,214 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2020-10-14 07:24:14,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:24:14,215 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2020-10-14 07:24:14,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 07:24:14,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:24:14,217 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:24:14,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:24:14,217 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:24:14,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:24:14,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2046185202, now seen corresponding path program 2 times [2020-10-14 07:24:14,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:24:14,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561174290] [2020-10-14 07:24:14,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:24:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:14,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:14,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:14,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:14,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:14,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:15,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:15,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:24:15,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:24:15,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1543 [2020-10-14 07:24:15,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:15,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:24:15,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:24:15,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 07:24:15,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:24:15,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:24:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:15,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:15,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:15,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:24:15,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:15,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:24:15,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:15,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:15,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:15,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:15,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:15,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:15,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:24:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:15,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:15,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:15,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:15,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:16,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:16,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 07:24:16,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:24:16,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-10-14 07:24:16,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:16,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:24:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:24:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 07:24:16,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:16,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:16,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:16,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:16,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:16,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:16,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:16,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:24:16,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:24:16,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 07:24:16,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:16,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:16,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:24:16,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:16,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:24:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:16,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:16,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:16,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:16,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:16,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:16,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:24:16,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:16,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:16,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:24:16,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:16,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:24:16,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:16,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:24:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:16,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:16,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:16,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:16,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:16,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:24:16,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:16,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:16,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:24:16,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:16,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:24:16,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:16,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:24:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:16,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:16,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:16,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:16,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:16,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:24:16,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:16,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:24:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:24:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:24:16,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:16,518 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 07:24:16,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561174290] [2020-10-14 07:24:16,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:24:16,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:24:16,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947044094] [2020-10-14 07:24:16,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:24:16,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:24:16,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:24:16,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:24:16,521 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand 10 states. [2020-10-14 07:24:16,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:24:16,693 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2020-10-14 07:24:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:24:16,694 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2020-10-14 07:24:16,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:24:16,695 INFO L225 Difference]: With dead ends: 55 [2020-10-14 07:24:16,695 INFO L226 Difference]: Without dead ends: 31 [2020-10-14 07:24:16,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:24:16,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-14 07:24:16,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-14 07:24:16,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-14 07:24:16,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2020-10-14 07:24:16,711 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 41 [2020-10-14 07:24:16,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:24:16,712 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-10-14 07:24:16,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:24:16,712 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2020-10-14 07:24:16,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-14 07:24:16,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:24:16,713 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:24:16,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:24:16,714 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:24:16,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:24:16,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1391487784, now seen corresponding path program 3 times [2020-10-14 07:24:16,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:24:16,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913746026] [2020-10-14 07:24:16,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:24:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:16,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:16,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:16,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:17,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:17,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 07:24:17,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:24:17,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-10-14 07:24:17,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:17,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:17,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 07:24:17,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:24:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 07:24:17,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:17,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:24:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:17,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:17,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:17,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:24:17,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:17,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:24:17,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:17,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:17,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:24:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:17,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:17,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:17,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:18,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:18,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:24:18,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:24:18,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 892 [2020-10-14 07:24:18,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:18,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:24:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 07:24:18,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:18,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:18,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:18,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:18,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:24:18,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:18,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:24:18,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:18,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:24:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:18,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:24:18,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:18,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:18,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:18,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:18,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:18,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:18,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:24:18,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:18,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:24:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:24:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:18,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:24:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:18,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:18,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:18,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:18,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:18,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:24:18,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:18,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:18,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:24:18,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:18,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:24:18,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:18,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:24:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:18,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:18,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:18,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:18,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:18,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:24:18,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:18,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:24:18,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:18,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:24:18,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:18,909 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 31 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 07:24:18,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913746026] [2020-10-14 07:24:18,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:24:18,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 07:24:18,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68457173] [2020-10-14 07:24:18,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:24:18,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:24:18,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:24:18,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:24:18,912 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 15 states. [2020-10-14 07:24:19,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:24:19,160 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2020-10-14 07:24:19,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:24:19,161 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-10-14 07:24:19,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:24:19,162 INFO L225 Difference]: With dead ends: 41 [2020-10-14 07:24:19,162 INFO L226 Difference]: Without dead ends: 37 [2020-10-14 07:24:19,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:24:19,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-14 07:24:19,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2020-10-14 07:24:19,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-14 07:24:19,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2020-10-14 07:24:19,171 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 42 [2020-10-14 07:24:19,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:24:19,172 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2020-10-14 07:24:19,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:24:19,172 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2020-10-14 07:24:19,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 07:24:19,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:24:19,174 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:24:19,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:24:19,175 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:24:19,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:24:19,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1554048393, now seen corresponding path program 4 times [2020-10-14 07:24:19,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:24:19,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391665003] [2020-10-14 07:24:19,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:24:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:19,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:19,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:19,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:19,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:19,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:19,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:19,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:20,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:20,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:22,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:24,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:24,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 07:24:24,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 07:24:24,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 07:24:24,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:24,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:24,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:24:24,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 07:24:24,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:24:24,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:24,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:24:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:24,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:24,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:24,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:24:24,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:24,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:24:24,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:24,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:24,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:24,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:24:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:24,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:24,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:24,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:24,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:24,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:24,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:24,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:25,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:25,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:28,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:28,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 07:24:28,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 07:24:28,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4562 [2020-10-14 07:24:28,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:28,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:28,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:24:28,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:24:28,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:24:28,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:28,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:28,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:28,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:28,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:28,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:24:28,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:24:28,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 07:24:28,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:28,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:28,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:24:28,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:28,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:24:28,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:28,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:28,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:28,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:28,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:28,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:28,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:24:28,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:28,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:28,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:24:28,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:28,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:24:28,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:28,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:24:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:28,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:28,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:28,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:28,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:24:28,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:28,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:24:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:24:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:28,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:24:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:28,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:28,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:28,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:28,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:28,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:24:28,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:24:28,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 07:24:28,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:28,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:24:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:24:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:24:28,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:28,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:28,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:28,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:28,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:28,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:28,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:24:28,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:24:28,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:28,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:28,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:24:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:24:28,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:29,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:24:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:29,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:29,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:29,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:29,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:29,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:24:29,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:29,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:29,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:24:29,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:29,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:24:29,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 40 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-14 07:24:29,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391665003] [2020-10-14 07:24:29,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:24:29,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 07:24:29,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740763218] [2020-10-14 07:24:29,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:24:29,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:24:29,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:24:29,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:24:29,022 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand 9 states. [2020-10-14 07:24:29,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:24:29,254 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2020-10-14 07:24:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:24:29,254 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-10-14 07:24:29,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:24:29,258 INFO L225 Difference]: With dead ends: 77 [2020-10-14 07:24:29,258 INFO L226 Difference]: Without dead ends: 41 [2020-10-14 07:24:29,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:24:29,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-14 07:24:29,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-14 07:24:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-14 07:24:29,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-10-14 07:24:29,272 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 55 [2020-10-14 07:24:29,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:24:29,273 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-10-14 07:24:29,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:24:29,274 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-10-14 07:24:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 07:24:29,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:24:29,280 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:24:29,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:24:29,280 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:24:29,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:24:29,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1007952971, now seen corresponding path program 5 times [2020-10-14 07:24:29,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:24:29,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471136192] [2020-10-14 07:24:29,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:24:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:29,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:29,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:29,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:29,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:29,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:29,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:29,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:30,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:31,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:32,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:32,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 07:24:32,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 07:24:32,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2778 [2020-10-14 07:24:32,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:32,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:32,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:24:32,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 07:24:32,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 07:24:32,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:32,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:24:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:32,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:32,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:32,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:24:32,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:32,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:24:32,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:32,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:32,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:32,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:24:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:32,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:32,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:32,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:32,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:32,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:32,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:32,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 07:24:32,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:24:32,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805 [2020-10-14 07:24:32,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:32,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:24:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:24:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 07:24:32,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:32,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:32,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:32,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:32,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:32,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:32,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:33,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:33,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:24:33,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:24:33,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-14 07:24:33,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:33,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:24:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 07:24:33,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:33,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:33,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:33,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:33,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:24:33,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:33,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:24:33,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:33,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:24:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:24:33,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:33,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:33,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:33,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:33,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:33,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:33,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:24:33,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:33,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:33,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:33,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:33,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:33,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:33,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:24:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:33,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:33,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:33,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:33,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:33,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:24:33,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:33,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:33,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:33,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:33,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:33,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:33,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:24:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:33,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:33,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:33,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:33,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:33,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:24:33,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:24:33,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:33,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:24:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:24:33,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:33,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:24:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:33,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:33,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:33,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:33,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:33,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:24:33,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:33,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:33,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:24:33,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:24:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:24:33,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:33,395 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 59 proven. 13 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-14 07:24:33,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471136192] [2020-10-14 07:24:33,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:24:33,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 07:24:33,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890192458] [2020-10-14 07:24:33,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:24:33,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:24:33,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:24:33,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:24:33,401 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 8 states. [2020-10-14 07:24:33,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:24:33,563 INFO L93 Difference]: Finished difference Result 77 states and 96 transitions. [2020-10-14 07:24:33,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 07:24:33,563 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2020-10-14 07:24:33,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:24:33,564 INFO L225 Difference]: With dead ends: 77 [2020-10-14 07:24:33,564 INFO L226 Difference]: Without dead ends: 43 [2020-10-14 07:24:33,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:24:33,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-14 07:24:33,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-10-14 07:24:33,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-14 07:24:33,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2020-10-14 07:24:33,580 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 56 [2020-10-14 07:24:33,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:24:33,580 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2020-10-14 07:24:33,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:24:33,581 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2020-10-14 07:24:33,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 07:24:33,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:24:33,582 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:24:33,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:24:33,582 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:24:33,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:24:33,583 INFO L82 PathProgramCache]: Analyzing trace with hash -865837754, now seen corresponding path program 6 times [2020-10-14 07:24:33,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:24:33,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146124289] [2020-10-14 07:24:33,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:24:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:33,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:33,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:33,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:34,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:36,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:38,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:38,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 07:24:38,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:24:38,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 07:24:38,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:38,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 07:24:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:24:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:24:38,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:38,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:24:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:38,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:38,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:38,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:24:38,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:38,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:24:38,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:38,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:38,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:38,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:38,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:38,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:38,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:24:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:38,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:38,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:38,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:38,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:39,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:43,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:43,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 07:24:43,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:24:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 07:24:43,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:43,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:24:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:24:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:43,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:43,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:43,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:43,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:24:43,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:43,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 07:24:43,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:43,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:43,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:24:43,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:43,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 07:24:43,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:43,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:43,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:43,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:43,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:24:43,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:43,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:24:43,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:43,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:43,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:24:43,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:24:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:43,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:43,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:43,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:43,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:43,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:43,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:24:43,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:43,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:43,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:24:43,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:43,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:24:43,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:43,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:24:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:43,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:43,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:43,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:43,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:43,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:24:43,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:43,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:43,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:24:43,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:43,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:24:43,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:43,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:24:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:43,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:43,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:43,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:43,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:43,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:24:43,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:43,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:24:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:24:43,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:43,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:24:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:43,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:43,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:43,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:43,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:24:43,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:24:43,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 07:24:43,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:43,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:24:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:24:43,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:44,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:44,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:44,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:44,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:44,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:24:44,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:44,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:24:44,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:44,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:24:44,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:44,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:24:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:44,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:44,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:44,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:44,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:24:44,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:44,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:44,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:24:44,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:44,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:24:44,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:44,056 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 35 proven. 82 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-14 07:24:44,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146124289] [2020-10-14 07:24:44,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:24:44,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 07:24:44,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742920354] [2020-10-14 07:24:44,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 07:24:44,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:24:44,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 07:24:44,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:24:44,060 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 18 states. [2020-10-14 07:24:44,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:24:44,427 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2020-10-14 07:24:44,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:24:44,427 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 69 [2020-10-14 07:24:44,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:24:44,429 INFO L225 Difference]: With dead ends: 51 [2020-10-14 07:24:44,429 INFO L226 Difference]: Without dead ends: 47 [2020-10-14 07:24:44,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=663, Unknown=0, NotChecked=0, Total=812 [2020-10-14 07:24:44,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-14 07:24:44,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2020-10-14 07:24:44,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-14 07:24:44,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2020-10-14 07:24:44,439 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 69 [2020-10-14 07:24:44,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:24:44,439 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2020-10-14 07:24:44,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 07:24:44,440 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2020-10-14 07:24:44,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-14 07:24:44,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:24:44,443 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:24:44,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:24:44,444 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:24:44,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:24:44,444 INFO L82 PathProgramCache]: Analyzing trace with hash 551748881, now seen corresponding path program 7 times [2020-10-14 07:24:44,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:24:44,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335107231] [2020-10-14 07:24:44,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:24:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:44,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:44,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:45,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:45,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:45,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:45,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:45,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:48,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:48,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:48,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:48,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:48,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:48,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:48,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:48,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:48,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:49,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:49,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 07:24:49,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 26 [2020-10-14 07:24:49,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 07:24:49,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:49,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:49,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:24:49,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 07:24:49,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 07:24:49,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:49,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:24:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:49,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:49,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:49,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:24:49,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:49,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:24:49,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:49,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:49,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:49,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:24:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:49,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:49,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:49,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:49,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:49,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:49,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:54,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-14 07:24:54,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 07:24:54,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 07:24:54,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:54,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 07:24:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:24:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 07:24:54,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:54,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:54,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:54,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:55,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:55,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:55,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:55,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:55,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:55,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:55,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:55,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:55,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:55,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:55,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:56,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:59,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 07:24:59,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 25 [2020-10-14 07:24:59,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 07:24:59,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:59,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:59,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:24:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:24:59,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:59,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:59,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:59,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:24:59,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:59,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:24:59,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:59,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:24:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 07:24:59,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:59,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:59,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:59,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:24:59,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:59,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:24:59,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:59,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:59,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:59,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:59,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:59,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:59,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:59,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:24:59,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:59,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:59,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:59,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:24:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:59,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:59,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:59,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:59,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:24:59,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:59,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:59,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:59,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:59,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:59,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:59,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:24:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:59,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:59,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:59,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:59,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:24:59,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:59,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:24:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:24:59,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:59,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:24:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:59,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:59,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:24:59,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:24:59,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 07:24:59,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:59,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:59,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:24:59,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:59,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:24:59,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:24:59,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:24:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:59,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:59,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:24:59,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:59,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:24:59,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:59,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:59,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:24:59,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:59,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:24:59,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:59,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:24:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:24:59,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:24:59,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:24:59,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:24:59,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:24:59,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:24:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:24:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:24:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:24:59,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:24:59,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:24:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:24:59,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:24:59,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:00,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:03,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:03,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 07:25:03,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 07:25:03,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4149 [2020-10-14 07:25:03,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:03,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:25:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:25:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:25:03,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:03,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:25:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:03,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:03,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:03,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:25:03,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:03,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:25:03,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:03,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:03,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:25:03,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:03,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 07:25:03,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:03,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:25:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:03,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:03,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:03,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:25:03,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:03,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:25:03,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:03,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:03,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:25:03,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:03,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:25:03,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:03,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:25:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:03,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:03,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:03,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:25:03,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:25:03,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:03,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:25:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:03,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:25:03,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:03,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:25:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:03,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:03,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:03,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:25:03,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:03,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:25:03,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:03,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:03,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:25:03,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:03,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:25:03,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:03,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:25:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:03,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:03,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:03,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:25:03,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:03,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:25:03,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:03,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:03,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:25:03,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:03,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:25:03,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:25:03,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:25:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:03,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:03,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:03,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:04,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:04,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:25:04,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:25:04,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 07:25:04,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:04,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:25:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:25:04,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:04,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:25:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:04,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:04,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:04,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:04,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:25:04,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:25:04,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:25:04,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:04,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:04,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:25:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:25:04,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:25:04,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:25:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:04,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:04,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:04,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:25:04,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:04,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:25:04,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:04,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:25:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:04,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:25:04,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:04,107 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 285 proven. 191 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2020-10-14 07:25:04,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335107231] [2020-10-14 07:25:04,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:25:04,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 07:25:04,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247815937] [2020-10-14 07:25:04,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:25:04,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:25:04,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:25:04,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:25:04,109 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand 11 states. [2020-10-14 07:25:04,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:25:04,355 INFO L93 Difference]: Finished difference Result 99 states and 142 transitions. [2020-10-14 07:25:04,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:25:04,356 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 137 [2020-10-14 07:25:04,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:25:04,358 INFO L225 Difference]: With dead ends: 99 [2020-10-14 07:25:04,358 INFO L226 Difference]: Without dead ends: 62 [2020-10-14 07:25:04,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:25:04,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-14 07:25:04,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2020-10-14 07:25:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-14 07:25:04,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2020-10-14 07:25:04,369 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 137 [2020-10-14 07:25:04,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:25:04,369 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2020-10-14 07:25:04,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:25:04,370 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2020-10-14 07:25:04,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 07:25:04,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:25:04,371 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:25:04,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:25:04,372 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:25:04,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:25:04,372 INFO L82 PathProgramCache]: Analyzing trace with hash 946234379, now seen corresponding path program 8 times [2020-10-14 07:25:04,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:25:04,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765969996] [2020-10-14 07:25:04,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:25:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:04,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:04,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:04,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:04,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:04,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:06,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:09,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:09,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 07:25:09,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:25:09,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 07:25:09,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:09,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:09,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-14 07:25:09,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:25:09,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 07:25:09,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:09,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:25:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:09,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:09,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:09,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:25:09,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:09,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:25:09,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:09,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:09,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:25:09,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:09,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:25:09,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:09,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:25:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:09,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:09,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:09,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:09,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:09,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:14,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:14,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 07:25:14,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:25:14,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 07:25:14,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:14,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:14,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-14 07:25:14,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:14,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 07:25:14,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:14,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:25:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:14,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:14,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:14,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:14,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:16,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 07:25:19,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:25:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 07:25:19,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 07:25:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:25:19,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:25:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:25:19,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:25:19,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:25:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 07:25:19,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:25:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:25:19,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:25:19,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:25:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:25:19,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:25:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:25:19,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:25:19,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:25:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:25:19,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:25:19,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:25:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:25:19,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:25:19,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:25:19,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:25:19,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:25:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:25:19,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:25:19,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:25:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:25:19,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:25:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:25:19,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:25:19,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 07:25:19,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:25:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:25:19,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:25:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:25:19,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:25:19,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:25:19,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:25:19,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:25:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:25:19,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:25:19,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:25:19,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:25:19,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:25:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:25:19,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 07:25:19,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:25:19,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 07:25:19,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:25:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:25:19,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:25:19,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:25:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:25:19,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:25:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:25:19,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:25:19,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:25:19,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:25:19,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:25:19,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:25:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:25:19,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:25:19,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:25:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:25:19,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:25:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:25:19,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:25:19,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:25:19,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:25:19,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:25:19,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:25:19,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:25:19,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:25:19,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:25:19,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:25:19,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:25:19,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:25:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 95 proven. 248 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2020-10-14 07:25:19,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765969996] [2020-10-14 07:25:20,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:25:20,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 07:25:20,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773198939] [2020-10-14 07:25:20,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 07:25:20,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:25:20,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 07:25:20,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2020-10-14 07:25:20,002 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand 24 states. [2020-10-14 07:25:20,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:25:20,713 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2020-10-14 07:25:20,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 07:25:20,713 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 110 [2020-10-14 07:25:20,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:25:20,714 INFO L225 Difference]: With dead ends: 61 [2020-10-14 07:25:20,714 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 07:25:20,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=251, Invalid=1471, Unknown=0, NotChecked=0, Total=1722 [2020-10-14 07:25:20,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 07:25:20,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 07:25:20,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 07:25:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 07:25:20,717 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2020-10-14 07:25:20,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:25:20,717 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 07:25:20,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 07:25:20,717 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 07:25:20,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 07:25:20,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 07:25:20,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 07:25:21,227 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 17 [2020-10-14 07:25:21,233 INFO L268 CegarLoopResult]: For program point fibonacciFINAL(lines 14 22) no Hoare annotation was computed. [2020-10-14 07:25:21,233 INFO L271 CegarLoopResult]: At program point fibonacciENTRY(lines 14 22) the Hoare annotation is: true [2020-10-14 07:25:21,234 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (= fibonacci_~n |fibonacci_#in~n|) (<= 2 |fibonacci_#in~n|)) [2020-10-14 07:25:21,234 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-10-14 07:25:21,234 INFO L264 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: (let ((.cse0 (= fibonacci_~n |fibonacci_#in~n|))) (or (and (<= |fibonacci_#in~n| (+ |fibonacci_#t~ret0| 2)) (<= 4 fibonacci_~n) .cse0) (and .cse0 (= |fibonacci_#t~ret0| 1) (<= fibonacci_~n 3) (<= 2 |fibonacci_#in~n|)))) [2020-10-14 07:25:21,234 INFO L268 CegarLoopResult]: For program point fibonacciEXIT(lines 14 22) no Hoare annotation was computed. [2020-10-14 07:25:21,234 INFO L268 CegarLoopResult]: For program point L17(lines 17 21) no Hoare annotation was computed. [2020-10-14 07:25:21,234 INFO L268 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2020-10-14 07:25:21,235 INFO L268 CegarLoopResult]: For program point L15(lines 15 21) no Hoare annotation was computed. [2020-10-14 07:25:21,235 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-14 07:25:21,235 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 07:25:21,235 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 07:25:21,235 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 07:25:21,235 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 07:25:21,235 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 07:25:21,236 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 34) no Hoare annotation was computed. [2020-10-14 07:25:21,236 INFO L268 CegarLoopResult]: For program point L31(lines 31 35) no Hoare annotation was computed. [2020-10-14 07:25:21,236 INFO L271 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: true [2020-10-14 07:25:21,236 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 25 36) the Hoare annotation is: true [2020-10-14 07:25:21,236 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-10-14 07:25:21,236 INFO L268 CegarLoopResult]: For program point L27(lines 27 29) no Hoare annotation was computed. [2020-10-14 07:25:21,236 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 25 36) no Hoare annotation was computed. [2020-10-14 07:25:21,237 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 25 36) no Hoare annotation was computed. [2020-10-14 07:25:21,237 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-14 07:25:21,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:25:21 BoogieIcfgContainer [2020-10-14 07:25:21,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:25:21,251 INFO L168 Benchmark]: Toolchain (without parser) took 70760.74 ms. Allocated memory was 145.8 MB in the beginning and 890.2 MB in the end (delta: 744.5 MB). Free memory was 101.9 MB in the beginning and 419.9 MB in the end (delta: -318.0 MB). Peak memory consumption was 426.5 MB. Max. memory is 7.1 GB. [2020-10-14 07:25:21,256 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 07:25:21,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.70 ms. Allocated memory is still 145.8 MB. Free memory was 101.5 MB in the beginning and 92.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-10-14 07:25:21,258 INFO L168 Benchmark]: Boogie Preprocessor took 104.88 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 92.4 MB in the beginning and 179.7 MB in the end (delta: -87.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-10-14 07:25:21,259 INFO L168 Benchmark]: RCFGBuilder took 228.68 ms. Allocated memory is still 201.3 MB. Free memory was 179.7 MB in the beginning and 167.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-10-14 07:25:21,266 INFO L168 Benchmark]: TraceAbstraction took 70184.56 ms. Allocated memory was 201.3 MB in the beginning and 890.2 MB in the end (delta: 688.9 MB). Free memory was 167.3 MB in the beginning and 419.9 MB in the end (delta: -252.6 MB). Peak memory consumption was 436.3 MB. Max. memory is 7.1 GB. [2020-10-14 07:25:21,272 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 237.70 ms. Allocated memory is still 145.8 MB. Free memory was 101.5 MB in the beginning and 92.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.88 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 92.4 MB in the beginning and 179.7 MB in the end (delta: -87.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 228.68 ms. Allocated memory is still 201.3 MB. Free memory was 179.7 MB in the beginning and 167.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 70184.56 ms. Allocated memory was 201.3 MB in the beginning and 890.2 MB in the end (delta: 688.9 MB). Free memory was 167.3 MB in the beginning and 419.9 MB in the end (delta: -252.6 MB). Peak memory consumption was 436.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 34]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 69.6s, OverallIterations: 12, TraceHistogramMax: 19, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 224 SDtfs, 216 SDslu, 917 SDs, 0 SdLazy, 1560 SolverSat, 275 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 400 GetRequests, 213 SyntacticMatches, 3 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 12 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 98 PreInvPairs, 151 NumberOfFragments, 39 HoareAnnotationTreeSize, 98 FomulaSimplifications, 764 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 8 FomulaSimplificationsInter, 940 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 66.0s InterpolantComputationTime, 623 NumberOfCodeBlocks, 623 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 611 ConstructedInterpolants, 0 QuantifiedInterpolants, 114847 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 1413/2046 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...