/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Addition03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:58:35,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:58:35,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:58:35,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:58:35,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:58:35,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:58:35,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:58:35,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:58:35,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:58:35,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:58:35,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:58:35,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:58:35,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:58:35,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:58:35,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:58:35,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:58:35,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:58:35,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:58:35,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:58:35,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:58:35,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:58:35,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:58:35,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:58:35,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:58:35,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:58:35,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:58:35,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:58:35,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:58:35,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:58:35,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:58:35,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:58:35,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:58:35,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:58:35,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:58:35,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:58:35,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:58:35,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:58:35,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:58:35,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:58:35,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:58:35,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:58:35,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:58:35,308 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:58:35,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:58:35,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:58:35,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:58:35,314 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:58:35,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:58:35,315 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:58:35,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:58:35,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:58:35,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:58:35,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:58:35,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:58:35,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:58:35,316 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:58:35,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:58:35,316 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:58:35,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:58:35,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:58:35,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:58:35,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:58:35,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:58:35,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:58:35,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:58:35,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:58:35,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:58:35,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:58:35,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:58:35,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:58:35,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:58:35,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:58:35,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:58:35,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:58:35,816 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:58:35,818 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:58:35,820 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:58:35,821 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-25 09:58:35,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa397b6d3/37b09dea10d9470dbd51cc1e00246279/FLAG2ed6b3d3a [2020-09-25 09:58:36,546 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:58:36,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-25 09:58:36,556 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa397b6d3/37b09dea10d9470dbd51cc1e00246279/FLAG2ed6b3d3a [2020-09-25 09:58:36,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa397b6d3/37b09dea10d9470dbd51cc1e00246279 [2020-09-25 09:58:36,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:58:36,908 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:58:36,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:36,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:58:36,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:58:36,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:36" (1/1) ... [2020-09-25 09:58:36,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446f26ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:36, skipping insertion in model container [2020-09-25 09:58:36,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:36" (1/1) ... [2020-09-25 09:58:36,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:58:36,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:58:37,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:37,183 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:58:37,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:37,219 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:58:37,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:37 WrapperNode [2020-09-25 09:58:37,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:37,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:58:37,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:58:37,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:58:37,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:37" (1/1) ... [2020-09-25 09:58:37,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:37" (1/1) ... [2020-09-25 09:58:37,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:37" (1/1) ... [2020-09-25 09:58:37,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:37" (1/1) ... [2020-09-25 09:58:37,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:37" (1/1) ... [2020-09-25 09:58:37,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:37" (1/1) ... [2020-09-25 09:58:37,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:37" (1/1) ... [2020-09-25 09:58:37,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:58:37,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:58:37,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:58:37,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:58:37,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:58:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:58:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:58:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-09-25 09:58:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:58:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:58:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:58:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-09-25 09:58:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:58:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:58:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:58:37,668 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:58:37,668 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 09:58:37,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:37 BoogieIcfgContainer [2020-09-25 09:58:37,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:58:37,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:58:37,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:58:37,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:58:37,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:58:36" (1/3) ... [2020-09-25 09:58:37,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49365e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:37, skipping insertion in model container [2020-09-25 09:58:37,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:37" (2/3) ... [2020-09-25 09:58:37,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49365e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:37, skipping insertion in model container [2020-09-25 09:58:37,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:37" (3/3) ... [2020-09-25 09:58:37,684 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2020-09-25 09:58:37,694 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:58:37,706 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:58:37,728 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:58:37,759 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:58:37,759 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:58:37,759 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:58:37,759 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:58:37,759 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:58:37,760 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:58:37,760 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:58:37,760 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:58:37,783 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-25 09:58:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 09:58:37,793 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:37,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:37,795 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:37,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:37,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1218957033, now seen corresponding path program 1 times [2020-09-25 09:58:37,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:37,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049991605] [2020-09-25 09:58:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:37,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:38,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:38,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 09:58:38,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:38,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-25 09:58:38,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:38,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:38,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:38,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:58:38,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 09:58:38,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:58:38,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:38,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:38,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:38,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:38,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:38,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:38,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:38,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:38,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:38,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:38,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:38,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:38,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:38,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:38,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 09:58:38,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:38,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:38,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:38,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:58:38,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049991605] [2020-09-25 09:58:38,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:38,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:58:38,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954544598] [2020-09-25 09:58:38,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:58:38,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:38,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:58:38,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:58:38,418 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-09-25 09:58:38,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:38,616 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2020-09-25 09:58:38,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:58:38,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-25 09:58:38,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:38,633 INFO L225 Difference]: With dead ends: 53 [2020-09-25 09:58:38,634 INFO L226 Difference]: Without dead ends: 35 [2020-09-25 09:58:38,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:58:38,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-25 09:58:38,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-25 09:58:38,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 09:58:38,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2020-09-25 09:58:38,697 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 22 [2020-09-25 09:58:38,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:38,698 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2020-09-25 09:58:38,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:58:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2020-09-25 09:58:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 09:58:38,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:38,702 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:38,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:58:38,703 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:38,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:38,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1438677315, now seen corresponding path program 1 times [2020-09-25 09:58:38,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:38,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007858739] [2020-09-25 09:58:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:38,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:39,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:39,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 09:58:39,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:39,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-09-25 09:58:39,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:39,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:39,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:58:39,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 09:58:39,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:58:39,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:39,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:39,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:39,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:39,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:39,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:58:39,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:39,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:39,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:39,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:39,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:39,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:39,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:39,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:39,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:39,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:58:39,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:39,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 09:58:39,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:39,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:39,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:39,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:39,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:58:39,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:39,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:39,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:39,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:39,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:39,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:39,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:58:39,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:39,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:39,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:39,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:39,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:39,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:39,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 09:58:39,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007858739] [2020-09-25 09:58:39,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:39,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:58:39,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184325394] [2020-09-25 09:58:39,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:58:39,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:39,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:58:39,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:58:39,339 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 6 states. [2020-09-25 09:58:39,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:39,480 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2020-09-25 09:58:39,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 09:58:39,480 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-09-25 09:58:39,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:39,482 INFO L225 Difference]: With dead ends: 48 [2020-09-25 09:58:39,483 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 09:58:39,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:58:39,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 09:58:39,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-09-25 09:58:39,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 09:58:39,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-09-25 09:58:39,495 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 32 [2020-09-25 09:58:39,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:39,495 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-09-25 09:58:39,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:58:39,496 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-09-25 09:58:39,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 09:58:39,498 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:39,498 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:39,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:58:39,498 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:39,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:39,499 INFO L82 PathProgramCache]: Analyzing trace with hash -305631715, now seen corresponding path program 1 times [2020-09-25 09:58:39,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:39,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581257029] [2020-09-25 09:58:39,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:39,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:39,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:39,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:39,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:39,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:58:39,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:39,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-25 09:58:39,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:39,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:39,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:39,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:58:39,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 09:58:39,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:39,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:39,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:39,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:39,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:39,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:39,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:39,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:39,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:39,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:39,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:39,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:39,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:39,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:39,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:39,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:39,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:58:40,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:40,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 09:58:40,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:58:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:58:40,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:40,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 09:58:40,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:58:40,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,167 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 09:58:40,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581257029] [2020-09-25 09:58:40,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:40,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:58:40,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245387648] [2020-09-25 09:58:40,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:58:40,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:40,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:58:40,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:58:40,171 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 7 states. [2020-09-25 09:58:40,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:40,332 INFO L93 Difference]: Finished difference Result 89 states and 115 transitions. [2020-09-25 09:58:40,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 09:58:40,333 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 09:58:40,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:40,335 INFO L225 Difference]: With dead ends: 89 [2020-09-25 09:58:40,335 INFO L226 Difference]: Without dead ends: 56 [2020-09-25 09:58:40,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:58:40,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-25 09:58:40,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2020-09-25 09:58:40,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-25 09:58:40,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2020-09-25 09:58:40,349 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 33 [2020-09-25 09:58:40,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:40,350 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2020-09-25 09:58:40,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:58:40,350 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2020-09-25 09:58:40,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 09:58:40,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:40,352 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:40,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:58:40,353 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:40,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:40,354 INFO L82 PathProgramCache]: Analyzing trace with hash 967575145, now seen corresponding path program 2 times [2020-09-25 09:58:40,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:40,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707397299] [2020-09-25 09:58:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 09:58:40,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:40,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 09:58:40,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:58:40,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:58:40,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 09:58:40,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:40,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:40,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:40,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:40,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:58:40,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:40,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 09:58:40,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:58:40,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:40,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:58:40,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:58:40,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:40,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 09:58:40,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:58:40,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:40,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:58:40,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:40,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:40,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:58:40,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:40,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:40,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:40,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 09:58:40,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707397299] [2020-09-25 09:58:40,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:40,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 09:58:40,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953650188] [2020-09-25 09:58:40,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:58:40,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:40,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:58:40,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:58:40,868 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand 8 states. [2020-09-25 09:58:41,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:41,059 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2020-09-25 09:58:41,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 09:58:41,061 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-09-25 09:58:41,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:41,065 INFO L225 Difference]: With dead ends: 67 [2020-09-25 09:58:41,065 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 09:58:41,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:58:41,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 09:58:41,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-25 09:58:41,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 09:58:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2020-09-25 09:58:41,088 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 42 [2020-09-25 09:58:41,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:41,094 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2020-09-25 09:58:41,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:58:41,094 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2020-09-25 09:58:41,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 09:58:41,096 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:41,097 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:41,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:58:41,097 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:41,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:41,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1539519487, now seen corresponding path program 2 times [2020-09-25 09:58:41,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:41,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117504975] [2020-09-25 09:58:41,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:41,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:41,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:41,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:41,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:41,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:41,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 09:58:41,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:58:41,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 684 [2020-09-25 09:58:41,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:41,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:41,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:58:41,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:58:41,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 09:58:41,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:41,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:41,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:41,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:41,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:41,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:41,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:41,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:41,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:41,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:41,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:41,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:41,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:41,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:41,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:41,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:41,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:42,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:42,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:42,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:58:42,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:58:42,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 622 [2020-09-25 09:58:42,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:42,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:58:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 09:58:42,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:42,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:42,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:42,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:42,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:42,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:42,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:58:42,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:42,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 09:58:42,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:42,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:42,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:58:42,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:42,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:58:42,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:42,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:42,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:42,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:42,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:42,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:58:42,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:42,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 09:58:42,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:42,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:42,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:42,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:42,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:58:42,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 09:58:42,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117504975] [2020-09-25 09:58:42,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:42,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 09:58:42,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941054173] [2020-09-25 09:58:42,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:58:42,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:42,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:58:42,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:58:42,760 INFO L87 Difference]: Start difference. First operand 61 states and 73 transitions. Second operand 8 states. [2020-09-25 09:58:42,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:42,899 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2020-09-25 09:58:42,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 09:58:42,900 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 09:58:42,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:42,905 INFO L225 Difference]: With dead ends: 72 [2020-09-25 09:58:42,906 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 09:58:42,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:58:42,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 09:58:42,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 09:58:42,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 09:58:42,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2020-09-25 09:58:42,924 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 43 [2020-09-25 09:58:42,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:42,926 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2020-09-25 09:58:42,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:58:42,926 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2020-09-25 09:58:42,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 09:58:42,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:42,934 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:42,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:58:42,934 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:42,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:42,935 INFO L82 PathProgramCache]: Analyzing trace with hash -321617853, now seen corresponding path program 3 times [2020-09-25 09:58:42,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:42,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621757785] [2020-09-25 09:58:42,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:42,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:43,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:43,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 09:58:43,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:43,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 09:58:43,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:43,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:43,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:58:43,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:58:43,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 09:58:43,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:43,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:43,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:43,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:43,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:43,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:43,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:58:43,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:43,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:43,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:43,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:43,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:43,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 09:58:43,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:43,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 09:58:43,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:43,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:58:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 09:58:43,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:43,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:43,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:43,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:43,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:58:43,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:43,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 09:58:43,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:43,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 09:58:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:58:43,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:43,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:43,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:43,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:43,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:58:43,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:43,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 09:58:43,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:43,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:43,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:58:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:58:43,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:43,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:43,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:43,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:43,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:43,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:43,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:58:43,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:43,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:43,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:43,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:43,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:43,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:43,787 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 09:58:43,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621757785] [2020-09-25 09:58:43,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:43,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 09:58:43,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408583960] [2020-09-25 09:58:43,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:58:43,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:43,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:58:43,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:58:43,793 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 10 states. [2020-09-25 09:58:43,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:43,965 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2020-09-25 09:58:43,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 09:58:43,966 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-09-25 09:58:43,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:43,967 INFO L225 Difference]: With dead ends: 77 [2020-09-25 09:58:43,967 INFO L226 Difference]: Without dead ends: 71 [2020-09-25 09:58:43,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:58:43,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-25 09:58:43,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2020-09-25 09:58:43,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-25 09:58:43,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2020-09-25 09:58:43,990 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 52 [2020-09-25 09:58:43,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:43,990 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2020-09-25 09:58:43,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:58:43,990 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2020-09-25 09:58:43,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 09:58:43,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:43,995 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:43,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 09:58:43,995 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:43,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:43,996 INFO L82 PathProgramCache]: Analyzing trace with hash 259499357, now seen corresponding path program 3 times [2020-09-25 09:58:43,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:43,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436167567] [2020-09-25 09:58:43,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:44,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:44,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 09:58:44,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:58:44,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 964 [2020-09-25 09:58:44,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:44,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:44,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:58:44,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:58:44,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 09:58:44,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:58:44,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:44,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:44,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:44,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:44,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:44,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:58:44,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:44,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:44,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:44,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:44,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:44,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:45,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:45,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 09:58:46,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:58:46,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1061 [2020-09-25 09:58:46,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:58:46,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 09:58:46,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:58:46,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:58:46,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-09-25 09:58:46,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 09:58:46,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 09:58:46,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:58:46,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:46,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 09:58:46,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:58:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:58:46,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:58:46,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:46,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 09:58:46,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:58:46,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,853 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 09:58:46,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436167567] [2020-09-25 09:58:46,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:46,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 09:58:46,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505638388] [2020-09-25 09:58:46,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:58:46,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:46,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:58:46,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:58:46,856 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 9 states. [2020-09-25 09:58:46,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:46,982 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2020-09-25 09:58:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 09:58:46,983 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2020-09-25 09:58:46,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:46,984 INFO L225 Difference]: With dead ends: 82 [2020-09-25 09:58:46,985 INFO L226 Difference]: Without dead ends: 76 [2020-09-25 09:58:46,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:58:46,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-25 09:58:46,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2020-09-25 09:58:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 09:58:46,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2020-09-25 09:58:46,993 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 53 [2020-09-25 09:58:46,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:46,994 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2020-09-25 09:58:46,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:58:46,994 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2020-09-25 09:58:46,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 09:58:46,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:46,995 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:46,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 09:58:46,996 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:46,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:46,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1776668137, now seen corresponding path program 4 times [2020-09-25 09:58:46,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:46,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495830006] [2020-09-25 09:58:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:47,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:47,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 09:58:47,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:47,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 09:58:47,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:47,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:47,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:58:47,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:58:47,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 09:58:47,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:58:47,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:47,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:47,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:47,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:47,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:58:47,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:47,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:47,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:47,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:47,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:47,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:58:47,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:47,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:47,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 09:58:47,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:47,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-25 09:58:47,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:47,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:47,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:58:47,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:47,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 09:58:47,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:47,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:47,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:47,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 09:58:47,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:47,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 09:58:47,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:47,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:47,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 09:58:47,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:47,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 09:58:47,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:58:47,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:47,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:47,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:58:47,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:47,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 09:58:47,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:47,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:47,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 09:58:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:58:47,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:47,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:47,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:47,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:58:47,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:47,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 09:58:47,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:47,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:58:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:58:47,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:47,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:47,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:47,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:47,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:47,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:47,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:58:47,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:47,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:47,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:47,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 12 proven. 38 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 09:58:47,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495830006] [2020-09-25 09:58:48,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:48,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 09:58:48,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138881426] [2020-09-25 09:58:48,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:58:48,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:48,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:58:48,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:58:48,002 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand 10 states. [2020-09-25 09:58:48,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:48,145 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2020-09-25 09:58:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:58:48,145 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-09-25 09:58:48,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:48,146 INFO L225 Difference]: With dead ends: 87 [2020-09-25 09:58:48,147 INFO L226 Difference]: Without dead ends: 81 [2020-09-25 09:58:48,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 09:58:48,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-25 09:58:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2020-09-25 09:58:48,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-25 09:58:48,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2020-09-25 09:58:48,156 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 62 [2020-09-25 09:58:48,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:48,157 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2020-09-25 09:58:48,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:58:48,157 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2020-09-25 09:58:48,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 09:58:48,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:48,158 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:48,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 09:58:48,159 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:48,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:48,159 INFO L82 PathProgramCache]: Analyzing trace with hash 318406209, now seen corresponding path program 4 times [2020-09-25 09:58:48,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:48,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527995137] [2020-09-25 09:58:48,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:48,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:48,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:48,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:48,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:48,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:48,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:50,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 09:58:50,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:58:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2133 [2020-09-25 09:58:50,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:50,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:58:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:58:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 09:58:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:50,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:50,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:50,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:50,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:50,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:50,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:50,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:50,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:50,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:50,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:50,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:50,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:51,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:52,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 09:58:52,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:58:52,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1732 [2020-09-25 09:58:52,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:52,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:52,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:58:52,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:52,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 09:58:52,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:52,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:52,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:52,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:53,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 09:58:53,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:58:53,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 996 [2020-09-25 09:58:53,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:53,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 09:58:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:53,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 09:58:53,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:53,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:53,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:53,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:58:53,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:58:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-09-25 09:58:53,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:53,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 09:58:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 09:58:53,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:53,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:53,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:53,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:58:53,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:53,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 09:58:53,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:53,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:53,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:58:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:58:53,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:53,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:53,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:53,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:53,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:58:53,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:53,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 09:58:53,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:53,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:53,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:58:53,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:58:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-09-25 09:58:53,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527995137] [2020-09-25 09:58:53,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:53,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 09:58:53,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673249835] [2020-09-25 09:58:53,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:58:53,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:53,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:58:53,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:58:53,840 INFO L87 Difference]: Start difference. First operand 71 states and 83 transitions. Second operand 10 states. [2020-09-25 09:58:54,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:54,035 INFO L93 Difference]: Finished difference Result 92 states and 104 transitions. [2020-09-25 09:58:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:58:54,036 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-25 09:58:54,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:54,039 INFO L225 Difference]: With dead ends: 92 [2020-09-25 09:58:54,039 INFO L226 Difference]: Without dead ends: 86 [2020-09-25 09:58:54,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 09:58:54,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-25 09:58:54,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 64. [2020-09-25 09:58:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-25 09:58:54,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2020-09-25 09:58:54,065 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 63 [2020-09-25 09:58:54,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:54,066 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2020-09-25 09:58:54,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:58:54,066 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2020-09-25 09:58:54,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 09:58:54,069 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:54,069 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:54,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 09:58:54,070 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:54,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:54,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1043024061, now seen corresponding path program 5 times [2020-09-25 09:58:54,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:54,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701487213] [2020-09-25 09:58:54,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:54,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:54,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:54,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 09:58:54,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:54,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-09-25 09:58:54,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:54,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:54,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 09:58:54,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:58:54,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 09:58:54,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:54,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:54,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:54,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:54,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:54,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:54,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:58:54,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:54,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:54,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:54,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:54,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:54,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 09:58:54,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:54,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-09-25 09:58:54,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:54,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:54,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 09:58:54,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 09:58:54,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:54,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:54,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:55,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 09:58:55,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:55,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 09:58:55,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:55,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 09:58:55,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:55,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 09:58:55,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:55,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:55,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:55,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 09:58:55,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:55,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 09:58:55,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:55,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 09:58:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 09:58:55,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:55,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:55,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:55,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:58:55,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:55,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 09:58:55,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:55,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 09:58:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:55,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:58:55,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:55,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:55,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:55,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:58:55,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:55,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 09:58:55,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:55,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:55,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:58:55,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:55,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:58:55,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:55,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:55,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:55,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:55,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:58:55,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:55,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:55,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 4 proven. 69 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-09-25 09:58:55,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701487213] [2020-09-25 09:58:55,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:55,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 09:58:55,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517297658] [2020-09-25 09:58:55,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 09:58:55,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:55,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 09:58:55,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:58:55,514 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand 11 states. [2020-09-25 09:58:55,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:55,682 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2020-09-25 09:58:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:58:55,683 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 72 [2020-09-25 09:58:55,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:55,684 INFO L225 Difference]: With dead ends: 97 [2020-09-25 09:58:55,684 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 09:58:55,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 09:58:55,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 09:58:55,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 76. [2020-09-25 09:58:55,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-25 09:58:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2020-09-25 09:58:55,697 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 72 [2020-09-25 09:58:55,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:55,697 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2020-09-25 09:58:55,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 09:58:55,697 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2020-09-25 09:58:55,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-25 09:58:55,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:55,699 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:55,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 09:58:55,699 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:55,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:55,699 INFO L82 PathProgramCache]: Analyzing trace with hash 2031082653, now seen corresponding path program 5 times [2020-09-25 09:58:55,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:55,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154014582] [2020-09-25 09:58:55,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:55,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:55,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:59,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 09:58:59,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:58:59,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3568 [2020-09-25 09:58:59,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:59,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 09:58:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:58:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:58:59,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:59,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:59,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:59,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:59,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:59,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:58:59,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:59,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:59,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:59,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:58:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:59,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:59,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:00,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:01,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:01,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 09:59:01,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:01,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2274 [2020-09-25 09:59:01,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:01,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:01,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 09:59:01,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:01,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 09:59:01,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:01,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:01,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:01,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:01,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:01,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:01,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:02,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:03,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 09:59:03,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:59:03,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1532 [2020-09-25 09:59:03,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:03,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 09:59:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 09:59:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:03,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:03,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:03,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 09:59:03,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:59:03,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 713 [2020-09-25 09:59:03,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:03,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 09:59:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:03,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 09:59:03,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:03,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:03,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:04,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:59:04,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:04,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-09-25 09:59:04,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:04,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 09:59:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 09:59:04,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:04,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:04,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:04,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:59:04,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:04,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 09:59:04,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:04,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:59:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:59:04,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:04,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:04,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:04,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:59:04,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:04,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 09:59:04,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:04,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:04,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:59:04,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 6 proven. 78 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-09-25 09:59:04,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154014582] [2020-09-25 09:59:04,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:04,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 09:59:04,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524771871] [2020-09-25 09:59:04,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 09:59:04,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:04,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 09:59:04,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:59:04,516 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand 11 states. [2020-09-25 09:59:04,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:04,669 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2020-09-25 09:59:04,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:59:04,670 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2020-09-25 09:59:04,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:04,671 INFO L225 Difference]: With dead ends: 102 [2020-09-25 09:59:04,671 INFO L226 Difference]: Without dead ends: 96 [2020-09-25 09:59:04,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 09:59:04,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-25 09:59:04,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 69. [2020-09-25 09:59:04,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 09:59:04,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2020-09-25 09:59:04,684 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 73 [2020-09-25 09:59:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:04,684 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-09-25 09:59:04,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 09:59:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2020-09-25 09:59:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 09:59:04,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:04,687 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:04,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 09:59:04,688 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:04,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:04,691 INFO L82 PathProgramCache]: Analyzing trace with hash -473356951, now seen corresponding path program 6 times [2020-09-25 09:59:04,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:04,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884095023] [2020-09-25 09:59:04,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:04,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:05,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-09-25 09:59:05,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:05,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-09-25 09:59:05,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:05,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:05,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:59:05,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:59:05,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 09:59:05,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:05,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:05,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:05,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:05,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:05,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:05,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:05,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:05,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:05,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:05,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:05,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 09:59:05,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:05,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-25 09:59:05,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:05,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:59:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 09:59:05,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:05,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:05,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:05,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 09:59:05,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:05,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 09:59:05,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:05,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:05,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 09:59:05,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:05,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 09:59:05,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:05,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:05,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:05,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:05,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 09:59:05,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:05,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 09:59:05,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:05,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 09:59:05,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:05,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 09:59:05,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:59:05,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:05,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:06,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 09:59:06,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:06,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 09:59:06,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:06,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:06,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 09:59:06,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 09:59:06,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:06,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:06,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:06,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:59:06,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:06,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 09:59:06,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:06,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 09:59:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:59:06,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:06,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:06,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:06,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:59:06,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:06,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 09:59:06,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:06,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:06,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:59:06,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:06,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:59:06,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:06,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:06,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:06,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:06,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:06,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:59:06,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:06,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:06,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:06,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:06,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:06,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:06,284 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 20 proven. 93 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-25 09:59:06,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884095023] [2020-09-25 09:59:06,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:06,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 09:59:06,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522876233] [2020-09-25 09:59:06,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 09:59:06,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:06,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 09:59:06,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 09:59:06,286 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand 12 states. [2020-09-25 09:59:06,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:06,462 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2020-09-25 09:59:06,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 09:59:06,463 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-09-25 09:59:06,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:06,464 INFO L225 Difference]: With dead ends: 107 [2020-09-25 09:59:06,464 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 09:59:06,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-25 09:59:06,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 09:59:06,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 81. [2020-09-25 09:59:06,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 09:59:06,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 93 transitions. [2020-09-25 09:59:06,471 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 93 transitions. Word has length 82 [2020-09-25 09:59:06,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:06,471 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 93 transitions. [2020-09-25 09:59:06,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 09:59:06,472 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 93 transitions. [2020-09-25 09:59:06,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 09:59:06,473 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:06,473 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:06,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 09:59:06,473 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:06,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:06,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1726967937, now seen corresponding path program 6 times [2020-09-25 09:59:06,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:06,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819447434] [2020-09-25 09:59:06,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:06,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:06,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:08,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:11,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-25 09:59:11,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 09:59:11,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 09:59:11,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:11,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:11,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:59:11,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:59:11,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 09:59:11,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:11,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:11,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:11,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:11,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:11,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:11,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:11,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:11,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:11,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:11,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:11,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:11,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:11,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:15,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:59:15,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 09:59:15,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3955 [2020-09-25 09:59:15,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:15,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:15,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:59:15,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:15,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-25 09:59:15,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:15,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:15,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:16,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:18,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 09:59:18,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:18,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2739 [2020-09-25 09:59:18,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:18,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 09:59:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 09:59:18,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:18,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:18,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:18,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:19,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 09:59:19,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:59:19,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1121 [2020-09-25 09:59:19,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:19,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 09:59:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 09:59:19,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:19,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:19,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:20,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 09:59:20,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:59:20,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 975 [2020-09-25 09:59:20,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:20,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 09:59:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 09:59:20,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:20,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:20,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:20,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:59:20,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:20,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 09:59:20,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:20,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:20,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 09:59:20,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:20,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 09:59:20,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:20,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:20,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:20,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:59:20,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:20,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 09:59:20,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:20,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:59:20,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:20,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:59:20,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:20,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:20,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:20,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:59:20,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:59:20,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:20,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:20,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:20,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:20,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:59:20,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-09-25 09:59:20,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1819447434] [2020-09-25 09:59:20,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:20,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 09:59:20,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711454464] [2020-09-25 09:59:20,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 09:59:20,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:20,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 09:59:20,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 09:59:20,831 INFO L87 Difference]: Start difference. First operand 81 states and 93 transitions. Second operand 12 states. [2020-09-25 09:59:21,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:21,008 INFO L93 Difference]: Finished difference Result 112 states and 124 transitions. [2020-09-25 09:59:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 09:59:21,009 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 83 [2020-09-25 09:59:21,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:21,010 INFO L225 Difference]: With dead ends: 112 [2020-09-25 09:59:21,010 INFO L226 Difference]: Without dead ends: 106 [2020-09-25 09:59:21,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-25 09:59:21,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-25 09:59:21,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 74. [2020-09-25 09:59:21,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 09:59:21,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2020-09-25 09:59:21,016 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 83 [2020-09-25 09:59:21,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:21,017 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2020-09-25 09:59:21,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 09:59:21,017 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2020-09-25 09:59:21,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-09-25 09:59:21,018 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:21,018 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:21,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 09:59:21,019 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:21,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:21,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1366105667, now seen corresponding path program 7 times [2020-09-25 09:59:21,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:21,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086798597] [2020-09-25 09:59:21,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:21,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:21,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 09:59:21,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:21,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-09-25 09:59:21,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:21,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 09:59:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:59:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 09:59:21,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:21,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:21,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:21,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:21,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:21,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:21,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:21,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:21,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:21,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:21,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:21,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:21,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:21,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 09:59:21,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:21,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-09-25 09:59:21,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:21,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 09:59:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 09:59:21,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:21,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:21,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:22,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 09:59:22,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-09-25 09:59:22,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:22,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 09:59:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 09:59:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:22,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:22,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:22,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 09:59:22,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:22,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 09:59:22,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:22,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 09:59:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 09:59:22,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:22,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:22,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:22,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 09:59:22,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:22,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-25 09:59:22,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:22,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 09:59:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 09:59:22,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:22,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:22,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:22,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 09:59:22,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:22,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 09:59:22,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:22,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 09:59:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:22,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 09:59:22,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:22,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:22,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:22,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 09:59:22,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:22,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 09:59:22,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:22,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:22,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 09:59:22,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:22,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:59:22,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:22,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:22,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:22,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:59:22,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:22,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 09:59:22,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:22,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:22,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:59:22,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:22,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:59:22,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:59:22,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:23,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:23,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:23,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:23,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:59:23,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:23,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:23,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:23,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:23,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:23,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:59:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 12 proven. 131 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-09-25 09:59:23,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086798597] [2020-09-25 09:59:23,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:23,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 09:59:23,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287021356] [2020-09-25 09:59:23,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 09:59:23,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:23,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 09:59:23,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:59:23,065 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand 13 states. [2020-09-25 09:59:23,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:23,290 INFO L93 Difference]: Finished difference Result 117 states and 129 transitions. [2020-09-25 09:59:23,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 09:59:23,290 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-09-25 09:59:23,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:23,291 INFO L225 Difference]: With dead ends: 117 [2020-09-25 09:59:23,291 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 09:59:23,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 09:59:23,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 09:59:23,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 86. [2020-09-25 09:59:23,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-25 09:59:23,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2020-09-25 09:59:23,298 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 92 [2020-09-25 09:59:23,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:23,298 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2020-09-25 09:59:23,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 09:59:23,298 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2020-09-25 09:59:23,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-25 09:59:23,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:23,300 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:23,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 09:59:23,300 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:23,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:23,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1311314909, now seen corresponding path program 7 times [2020-09-25 09:59:23,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:23,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1310034142] [2020-09-25 09:59:23,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:23,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:27,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:28,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 09:59:28,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 09:59:28,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 09:59:28,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:28,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 09:59:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:59:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 09:59:28,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:28,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:28,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:28,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:28,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:28,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:28,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:28,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:28,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:28,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:28,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:28,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:28,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:30,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking...