/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:24:22,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:24:22,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:24:22,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:24:22,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:24:22,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:24:22,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:24:22,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:24:22,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:24:22,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:24:22,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:24:22,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:24:22,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:24:22,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:24:22,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:24:22,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:24:22,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:24:22,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:24:22,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:24:22,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:24:22,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:24:22,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:24:22,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:24:22,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:24:22,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:24:22,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:24:22,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:24:22,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:24:22,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:24:22,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:24:22,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:24:22,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:24:22,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:24:22,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:24:22,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:24:22,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:24:22,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:24:22,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:24:22,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:24:22,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:24:22,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:24:22,327 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 13:24:22,354 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:24:22,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:24:22,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:24:22,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:24:22,356 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:24:22,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:24:22,356 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:24:22,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:24:22,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:24:22,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:24:22,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:24:22,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:24:22,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:24:22,358 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:24:22,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:24:22,358 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:24:22,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:24:22,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:24:22,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:24:22,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:24:22,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:24:22,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:24:22,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:24:22,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:24:22,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:24:22,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:24:22,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:24:22,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:24:22,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:24:22,361 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 13:24:22,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:24:22,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:24:22,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:24:22,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:24:22,870 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:24:22,871 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-09-25 13:24:22,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce68eb290/59f0ca3dc00748e1a4f265f134f7d3f9/FLAGb3b703d20 [2020-09-25 13:24:23,491 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:24:23,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-09-25 13:24:23,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce68eb290/59f0ca3dc00748e1a4f265f134f7d3f9/FLAGb3b703d20 [2020-09-25 13:24:23,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce68eb290/59f0ca3dc00748e1a4f265f134f7d3f9 [2020-09-25 13:24:23,815 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:24:23,822 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:24:23,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:24:23,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:24:23,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:24:23,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:24:23" (1/1) ... [2020-09-25 13:24:23,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0642d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:24:23, skipping insertion in model container [2020-09-25 13:24:23,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:24:23" (1/1) ... [2020-09-25 13:24:23,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:24:23,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:24:24,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:24:24,137 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:24:24,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:24:24,190 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:24:24,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:24:24 WrapperNode [2020-09-25 13:24:24,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:24:24,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:24:24,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:24:24,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:24:24,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:24:24" (1/1) ... [2020-09-25 13:24:24,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:24:24" (1/1) ... [2020-09-25 13:24:24,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:24:24" (1/1) ... [2020-09-25 13:24:24,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:24:24" (1/1) ... [2020-09-25 13:24:24,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:24:24" (1/1) ... [2020-09-25 13:24:24,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:24:24" (1/1) ... [2020-09-25 13:24:24,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:24:24" (1/1) ... [2020-09-25 13:24:24,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:24:24,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:24:24,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:24:24,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:24:24,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:24:24" (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 13:24:24,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:24:24,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:24:24,400 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 13:24:24,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:24:24,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:24:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:24:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 13:24:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:24:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:24:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:24:24,607 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:24:24,608 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 13:24:24,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:24:24 BoogieIcfgContainer [2020-09-25 13:24:24,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:24:24,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:24:24,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:24:24,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:24:24,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:24:23" (1/3) ... [2020-09-25 13:24:24,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f008dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:24:24, skipping insertion in model container [2020-09-25 13:24:24,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:24:24" (2/3) ... [2020-09-25 13:24:24,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f008dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:24:24, skipping insertion in model container [2020-09-25 13:24:24,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:24:24" (3/3) ... [2020-09-25 13:24:24,624 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i15_o15-1.c [2020-09-25 13:24:24,637 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:24:24,648 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:24:24,697 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:24:24,765 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:24:24,766 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:24:24,766 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:24:24,766 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:24:24,766 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:24:24,766 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:24:24,766 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:24:24,767 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:24:24,791 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 13:24:24,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 13:24:24,799 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:24,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:24,800 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:24,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:24,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-25 13:24:24,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:24,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163437519] [2020-09-25 13:24:24,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:24,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:25,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:25,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:24:25,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:25,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 13:24:25,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:25,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:24:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:24:25,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:24:25,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:25,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:25,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:25,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:25,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:25,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:24:25,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:25,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:25,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:25,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:25,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:25,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:25,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:25,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:25,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:25,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:25,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:25,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 13:24:25,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:25,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:25,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:24:25,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:25,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:24:25,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:25,186 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 13:24:25,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163437519] [2020-09-25 13:24:25,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:24:25,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:24:25,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071338757] [2020-09-25 13:24:25,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:24:25,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:25,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:24:25,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:24:25,217 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 13:24:25,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:25,317 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 13:24:25,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:24:25,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 13:24:25,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:25,331 INFO L225 Difference]: With dead ends: 37 [2020-09-25 13:24:25,331 INFO L226 Difference]: Without dead ends: 23 [2020-09-25 13:24:25,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:24:25,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-25 13:24:25,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-25 13:24:25,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 13:24:25,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-25 13:24:25,389 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-25 13:24:25,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:25,390 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-25 13:24:25,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:24:25,390 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-25 13:24:25,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 13:24:25,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:25,393 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:25,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:24:25,394 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:25,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:25,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-25 13:24:25,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:25,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2058784410] [2020-09-25 13:24:25,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:25,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:25,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:25,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 13:24:25,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:25,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-25 13:24:25,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:25,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:24:25,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:25,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:24:25,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:25,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:25,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:25,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:25,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:25,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:25,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:24:25,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:25,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:25,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:25,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:25,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:25,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:25,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:25,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:25,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:25,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:25,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 13:24:25,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:25,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:24:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 13:24:25,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:24:25,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:25,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:25,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:25,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:25,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:25,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:24:25,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:25,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:25,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:25,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:24:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:24:25,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2058784410] [2020-09-25 13:24:25,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:25,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 13:24:25,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567932466] [2020-09-25 13:24:25,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:24:25,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:25,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:24:25,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:24:25,884 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-25 13:24:25,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:25,951 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 13:24:25,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:24:25,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 13:24:25,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:25,955 INFO L225 Difference]: With dead ends: 34 [2020-09-25 13:24:25,955 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 13:24:25,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 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 13:24:25,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 13:24:25,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 13:24:25,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 13:24:25,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-25 13:24:25,964 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-25 13:24:25,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:25,965 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-25 13:24:25,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:24:25,965 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-25 13:24:25,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 13:24:25,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:25,967 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:25,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:24:25,968 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:25,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:25,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-25 13:24:25,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:25,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720054346] [2020-09-25 13:24:25,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:25,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:26,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:26,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 13:24:26,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:26,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 13:24:26,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:26,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:26,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:24:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 13:24:26,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:26,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:26,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:26,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:26,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:26,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:26,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:24:26,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:26,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:26,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:26,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:26,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:26,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:26,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:24:26,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:26,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 13:24:26,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:26,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:26,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:24:26,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:26,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 13:24:26,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:26,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:26,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:26,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:26,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:26,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:26,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 13:24:26,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:26,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:26,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:24:26,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:26,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:24:26,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:24:26,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:26,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:26,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:26,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:26,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:26,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:24:26,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:26,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:26,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:26,584 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 13:24:26,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720054346] [2020-09-25 13:24:26,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:26,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 13:24:26,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220585377] [2020-09-25 13:24:26,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:24:26,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:26,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:24:26,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:24:26,590 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-25 13:24:26,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:26,709 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 13:24:26,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:24:26,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-25 13:24:26,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:26,712 INFO L225 Difference]: With dead ends: 39 [2020-09-25 13:24:26,712 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 13:24:26,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:24:26,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 13:24:26,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 13:24:26,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 13:24:26,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 13:24:26,732 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-25 13:24:26,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:26,733 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 13:24:26,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:24:26,733 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 13:24:26,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 13:24:26,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:26,737 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:26,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:24:26,738 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:26,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:26,739 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-25 13:24:26,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:26,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369631193] [2020-09-25 13:24:26,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:26,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:26,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:26,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 13:24:26,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:26,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 13:24:26,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:26,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:26,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:24:26,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:26,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:24:26,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:26,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:26,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:26,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:26,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:26,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:26,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:24:26,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:26,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:26,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:26,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:26,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:26,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:27,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:27,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:24:27,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:27,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 13:24:27,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:27,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:24:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:27,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 13:24:27,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:27,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:27,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:27,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:27,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:24:27,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:27,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 13:24:27,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:27,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:27,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:24:27,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:27,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:24:27,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:27,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:27,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:27,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:27,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:27,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:27,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 13:24:27,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:27,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:27,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:24:27,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:27,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:24:27,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:27,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:27,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:27,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:27,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:27,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:27,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:24:27,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:27,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:27,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:27,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:27,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:27,469 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 13:24:27,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369631193] [2020-09-25 13:24:27,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:27,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 13:24:27,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310033712] [2020-09-25 13:24:27,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:24:27,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:27,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:24:27,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:24:27,472 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 9 states. [2020-09-25 13:24:27,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:27,560 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-25 13:24:27,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 13:24:27,561 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2020-09-25 13:24:27,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:27,563 INFO L225 Difference]: With dead ends: 44 [2020-09-25 13:24:27,563 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 13:24:27,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:24:27,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 13:24:27,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 13:24:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 13:24:27,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 13:24:27,572 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-25 13:24:27,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:27,573 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 13:24:27,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:24:27,573 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 13:24:27,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 13:24:27,575 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:27,575 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:27,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:24:27,576 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:27,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:27,576 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-25 13:24:27,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:27,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086800834] [2020-09-25 13:24:27,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:27,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:27,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:27,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 13:24:27,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:27,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 13:24:27,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:27,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:27,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:24:27,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:27,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 13:24:27,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:27,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:27,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:27,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:27,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:27,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:27,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:24:27,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:27,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:27,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:27,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:27,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:27,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:27,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:27,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:28,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:28,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:24:28,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:28,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 13:24:28,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:28,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:24:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 13:24:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:28,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:28,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:28,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:28,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:24:28,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:28,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 13:24:28,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:28,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:24:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:24:28,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:28,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:28,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:28,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:28,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:24:28,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:28,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 13:24:28,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:28,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:28,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:24:28,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:28,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:24:28,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:28,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:28,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:28,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:28,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:28,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:28,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 13:24:28,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:28,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:24:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:28,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:24:28,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:28,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:28,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:28,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:28,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:28,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:28,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:24:28,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:28,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:28,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:28,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 13:24:28,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086800834] [2020-09-25 13:24:28,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:28,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:24:28,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894918524] [2020-09-25 13:24:28,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:24:28,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:28,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:24:28,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:24:28,493 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-09-25 13:24:28,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:28,598 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 13:24:28,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:24:28,599 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-25 13:24:28,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:28,600 INFO L225 Difference]: With dead ends: 49 [2020-09-25 13:24:28,601 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 13:24:28,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 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 13:24:28,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 13:24:28,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 13:24:28,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 13:24:28,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-25 13:24:28,609 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-25 13:24:28,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:28,609 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-25 13:24:28,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:24:28,610 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-25 13:24:28,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 13:24:28,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:28,612 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:28,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:24:28,612 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:28,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:28,613 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-25 13:24:28,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:28,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166011279] [2020-09-25 13:24:28,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:28,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:28,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:28,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 13:24:28,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-25 13:24:28,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:28,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:24:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 13:24:28,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:28,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:28,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:28,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:28,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:28,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:28,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:24:28,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:28,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:28,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:28,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:28,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:28,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:28,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:28,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:29,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:29,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 13:24:29,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:29,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 13:24:29,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:29,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:29,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:24:29,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:29,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 13:24:29,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:29,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:29,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:29,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:29,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:24:29,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:29,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-25 13:24:29,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:29,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:29,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:24:29,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:29,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 13:24:29,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:29,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:29,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:29,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:29,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:24:29,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:29,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 13:24:29,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:29,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:29,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:24:29,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:29,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:24:29,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:29,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:29,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:29,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:29,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:24:29,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:29,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 13:24:29,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:29,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:29,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:24:29,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:29,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:24:29,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:29,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:29,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:29,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:29,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:29,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:29,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 13:24:29,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:29,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:24:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:24:29,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-25 13:24:29,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:29,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:29,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:29,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:29,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:29,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:24:29,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:29,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:29,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:29,977 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 62 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 13:24:29,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166011279] [2020-09-25 13:24:29,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:29,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 13:24:29,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575821134] [2020-09-25 13:24:29,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:24:29,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:29,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:24:29,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:24:29,982 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 11 states. [2020-09-25 13:24:30,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:30,166 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-25 13:24:30,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 13:24:30,167 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 13:24:30,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:30,168 INFO L225 Difference]: With dead ends: 54 [2020-09-25 13:24:30,169 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 13:24:30,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 13:24:30,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 13:24:30,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-25 13:24:30,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-25 13:24:30,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-25 13:24:30,176 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-25 13:24:30,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:30,176 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-25 13:24:30,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:24:30,177 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-25 13:24:30,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 13:24:30,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:30,178 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:30,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:24:30,179 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:30,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:30,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-25 13:24:30,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:30,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167693882] [2020-09-25 13:24:30,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:30,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:30,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:30,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:24:30,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:30,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-09-25 13:24:30,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:30,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:30,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:24:30,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:30,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 13:24:30,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:30,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:30,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:30,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:30,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:30,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:30,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:24:30,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:30,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:30,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:30,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:30,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:30,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:30,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 13:24:30,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:30,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-09-25 13:24:30,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:30,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:30,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:24:30,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:30,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 13:24:30,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:30,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:30,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:31,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:31,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 13:24:31,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:31,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 13:24:31,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:31,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:31,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 13:24:31,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:31,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:24:31,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:31,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:31,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:31,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:31,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:24:31,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:31,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 13:24:31,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:31,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:31,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:24:31,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:31,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 13:24:31,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:31,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:31,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:31,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:31,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:24:31,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:31,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 13:24:31,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:31,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:24:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:31,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:24:31,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:31,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:31,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:31,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:31,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:24:31,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:31,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 13:24:31,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:31,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:31,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:24:31,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:24:31,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:31,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:31,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:31,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:31,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:31,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:31,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 13:24:31,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:31,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:24:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:24:31,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:31,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:31,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:31,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:31,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:31,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:31,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:24:31,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:31,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:31,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:24:32,036 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 10 proven. 103 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-25 13:24:32,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167693882] [2020-09-25 13:24:32,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:32,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 13:24:32,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676506009] [2020-09-25 13:24:32,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:24:32,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:32,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:24:32,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:24:32,042 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 13 states. [2020-09-25 13:24:32,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:32,200 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 13:24:32,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:24:32,201 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-09-25 13:24:32,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:32,202 INFO L225 Difference]: With dead ends: 59 [2020-09-25 13:24:32,202 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 13:24:32,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:24:32,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 13:24:32,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 13:24:32,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 13:24:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-25 13:24:32,215 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-25 13:24:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:32,216 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-25 13:24:32,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 13:24:32,216 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-25 13:24:32,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 13:24:32,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:32,221 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:32,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:24:32,221 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:32,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:32,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-25 13:24:32,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:32,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394204463] [2020-09-25 13:24:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:32,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:32,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:32,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 13:24:32,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:32,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 547 [2020-09-25 13:24:32,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:32,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:32,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 13:24:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 13:24:32,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:32,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:32,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:32,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:32,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:32,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:32,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:24:32,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:32,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:32,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:32,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:32,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:32,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:32,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:33,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:33,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 13:24:33,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:33,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-09-25 13:24:33,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:33,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 13:24:33,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:33,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:24:33,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:33,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:33,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:33,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:33,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 13:24:33,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:33,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-09-25 13:24:33,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:33,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:33,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 13:24:33,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:33,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 13:24:33,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:33,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:33,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:33,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:33,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 13:24:33,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:33,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 13:24:33,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:33,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 13:24:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:24:33,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:34,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:34,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:34,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:34,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:24:34,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:34,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-25 13:24:34,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:34,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:34,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:24:34,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:34,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 13:24:34,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:34,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:34,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:34,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:34,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:24:34,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:34,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 13:24:34,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:34,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:34,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:24:34,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:24:34,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:34,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:34,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:34,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:34,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:24:34,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:34,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 13:24:34,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:34,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:34,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:24:34,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:34,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:24:34,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:34,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:34,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:34,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:34,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:34,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:34,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 13:24:34,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:34,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:34,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:24:34,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:34,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:24:34,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:34,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:34,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:34,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:34,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:34,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:34,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:24:34,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:34,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:34,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:34,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:34,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:34,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:34,632 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 16 proven. 131 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-25 13:24:34,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394204463] [2020-09-25 13:24:34,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:34,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 13:24:34,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687790951] [2020-09-25 13:24:34,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:24:34,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:34,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:24:34,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:24:34,635 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-25 13:24:34,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:34,785 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-25 13:24:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:24:34,786 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-25 13:24:34,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:34,788 INFO L225 Difference]: With dead ends: 64 [2020-09-25 13:24:34,790 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 13:24:34,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 13:24:34,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 13:24:34,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 13:24:34,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 13:24:34,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 13:24:34,803 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-25 13:24:34,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:34,804 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 13:24:34,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 13:24:34,804 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 13:24:34,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 13:24:34,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:34,806 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:34,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 13:24:34,809 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:34,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:34,810 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-25 13:24:34,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:34,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369382017] [2020-09-25 13:24:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:34,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:35,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:35,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 13:24:35,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:35,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-09-25 13:24:35,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:35,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 13:24:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:35,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 13:24:35,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:35,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:35,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:35,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:35,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:35,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:35,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:24:35,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:35,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:35,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:35,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:35,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:35,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:35,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:35,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:35,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:35,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 13:24:35,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:35,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-09-25 13:24:35,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:35,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:35,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 13:24:35,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:35,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 13:24:35,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:35,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:35,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:36,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:36,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 13:24:36,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:36,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-09-25 13:24:36,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:36,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:36,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 13:24:36,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:36,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:24:36,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:36,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:36,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:36,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:36,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 13:24:36,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:36,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-09-25 13:24:36,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:36,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 13:24:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 13:24:36,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:36,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:36,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:36,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:36,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 13:24:36,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:36,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-25 13:24:36,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:36,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:36,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 13:24:36,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:36,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:24:36,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:37,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:37,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:37,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:37,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:24:37,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:37,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 13:24:37,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:37,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:37,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:24:37,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:37,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 13:24:37,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:37,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:37,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:37,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:37,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:24:37,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:37,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 13:24:37,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:37,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:24:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:24:37,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:37,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:37,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:37,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:37,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:24:37,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:37,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 13:24:37,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:37,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:37,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:24:37,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:37,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:24:37,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:37,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:37,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:37,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:37,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:37,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:37,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 13:24:37,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:37,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:37,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:24:37,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:37,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:24:37,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:24:37,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:37,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:37,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:37,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:37,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:37,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 13:24:37,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:37,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:37,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:37,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:24:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 12 proven. 184 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-25 13:24:37,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369382017] [2020-09-25 13:24:37,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:37,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 13:24:37,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886555738] [2020-09-25 13:24:37,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 13:24:37,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:37,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 13:24:37,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:24:37,715 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 15 states. [2020-09-25 13:24:37,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:37,926 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-25 13:24:37,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 13:24:37,927 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2020-09-25 13:24:37,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:37,929 INFO L225 Difference]: With dead ends: 69 [2020-09-25 13:24:37,931 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 13:24:37,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=358, Unknown=0, NotChecked=0, Total=552 [2020-09-25 13:24:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 13:24:37,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 13:24:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 13:24:37,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-25 13:24:37,951 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-25 13:24:37,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:37,952 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-25 13:24:37,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 13:24:37,952 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-25 13:24:37,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 13:24:37,953 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:37,953 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:37,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 13:24:37,955 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:37,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:37,956 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-25 13:24:37,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:37,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901110083] [2020-09-25 13:24:37,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:37,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:38,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:38,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 13:24:38,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:38,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 608 [2020-09-25 13:24:38,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:38,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:38,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 13:24:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 13:24:38,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:38,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:38,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:38,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:38,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:38,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:38,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:24:38,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:38,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:38,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:38,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:38,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:38,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:38,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:38,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:39,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:39,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 13:24:39,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:39,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-09-25 13:24:39,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:39,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:39,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 13:24:39,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:39,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 13:24:39,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:39,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:39,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:39,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:39,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 13:24:39,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:39,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-09-25 13:24:39,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:39,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:39,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 13:24:39,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:39,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 13:24:39,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:39,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:39,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:40,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:40,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 13:24:40,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:40,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-09-25 13:24:40,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:40,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:40,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 13:24:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:24:40,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:24:40,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:40,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:40,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:40,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 13:24:40,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:40,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-25 13:24:40,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:40,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 13:24:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 13:24:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:40,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:40,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:40,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:40,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 13:24:40,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:40,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 13:24:40,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:40,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:40,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 13:24:40,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:40,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:24:40,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:40,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:40,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:41,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:41,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:24:41,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:41,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-25 13:24:41,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:41,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:41,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:24:41,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:41,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 13:24:41,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:41,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:41,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:41,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:41,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:24:41,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:41,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 13:24:41,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:41,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:24:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:24:41,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:41,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:41,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:41,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:41,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:24:41,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:41,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 13:24:41,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:41,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:24:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:24:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:24:41,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:41,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:41,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:41,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:41,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:41,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 13:24:41,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:41,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:24:41,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:41,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:24:41,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:24:41,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:41,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:41,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:41,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:41,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:41,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:24:41,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:41,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:41,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:41,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:41,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:41,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 26 proven. 214 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 13:24:41,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901110083] [2020-09-25 13:24:41,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:41,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 13:24:41,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153127552] [2020-09-25 13:24:41,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 13:24:41,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:41,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 13:24:41,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:24:41,558 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-25 13:24:41,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:41,718 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-25 13:24:41,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 13:24:41,719 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-25 13:24:41,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:41,720 INFO L225 Difference]: With dead ends: 74 [2020-09-25 13:24:41,720 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 13:24:41,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 13:24:41,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 13:24:41,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 13:24:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 13:24:41,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-25 13:24:41,729 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-25 13:24:41,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:41,730 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-25 13:24:41,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 13:24:41,731 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-25 13:24:41,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 13:24:41,732 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:41,732 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:41,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 13:24:41,732 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:41,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:41,733 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-25 13:24:41,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:41,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843019436] [2020-09-25 13:24:41,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:41,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:42,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:42,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 13:24:42,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:42,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 740 [2020-09-25 13:24:42,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:42,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:42,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 13:24:42,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:42,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 13:24:42,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:42,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:42,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:42,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:42,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:42,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:42,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:24:42,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:42,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:42,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:42,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:42,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:43,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:43,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 13:24:43,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:43,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-09-25 13:24:43,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:43,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 13:24:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 13:24:43,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:43,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:43,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:43,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:43,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 13:24:43,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:43,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-09-25 13:24:43,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:43,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 13:24:43,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:43,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 13:24:43,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:43,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:43,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:44,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:44,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 13:24:44,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:44,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-09-25 13:24:44,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:44,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:44,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 13:24:44,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 13:24:44,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:44,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:44,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:44,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:44,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 13:24:44,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:44,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-09-25 13:24:44,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:44,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:44,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 13:24:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:24:44,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:44,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:44,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:45,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:45,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 13:24:45,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:45,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-25 13:24:45,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:45,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 13:24:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 13:24:45,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:45,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:45,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:45,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:45,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 13:24:45,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:45,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 13:24:45,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:45,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:45,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 13:24:45,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:45,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:24:45,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:45,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:45,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:45,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:45,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:24:45,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:45,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 13:24:45,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:45,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:24:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 13:24:45,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:45,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:45,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:45,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:45,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:24:45,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:45,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 13:24:45,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:45,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:45,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:24:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:24:45,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:45,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:45,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:45,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:45,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:24:45,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:45,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 13:24:45,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:45,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:24:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:24:45,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:45,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:45,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:46,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:46,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:46,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:46,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 13:24:46,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:46,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:24:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:24:46,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:46,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:46,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:46,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:46,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:46,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:46,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:24:46,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:46,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:46,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 27 proven. 267 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-09-25 13:24:46,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843019436] [2020-09-25 13:24:46,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:46,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 13:24:46,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096322025] [2020-09-25 13:24:46,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 13:24:46,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:46,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 13:24:46,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 13:24:46,101 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 16 states. [2020-09-25 13:24:46,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:46,270 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 13:24:46,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:24:46,270 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 96 [2020-09-25 13:24:46,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:46,272 INFO L225 Difference]: With dead ends: 79 [2020-09-25 13:24:46,272 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 13:24:46,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-25 13:24:46,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 13:24:46,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-25 13:24:46,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 13:24:46,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-25 13:24:46,290 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-25 13:24:46,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:46,291 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-25 13:24:46,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 13:24:46,291 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-25 13:24:46,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 13:24:46,292 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:46,292 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:46,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 13:24:46,292 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:46,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:46,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-25 13:24:46,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:46,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557819414] [2020-09-25 13:24:46,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:46,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:47,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:47,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 13:24:47,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:47,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 741 [2020-09-25 13:24:47,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:47,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 13:24:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 13:24:47,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:47,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:47,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:47,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:47,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:47,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:47,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:24:47,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:47,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:47,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:47,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:47,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:47,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 13:24:47,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 733 [2020-09-25 13:24:47,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:47,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 13:24:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 13:24:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:47,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:47,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:48,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:48,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 13:24:48,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:48,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-09-25 13:24:48,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:48,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 13:24:48,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:48,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 13:24:48,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:48,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:49,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:49,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 13:24:49,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 631 [2020-09-25 13:24:49,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:49,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 13:24:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 13:24:49,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:49,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:49,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:49,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:49,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 13:24:49,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:49,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-09-25 13:24:49,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:49,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:49,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 13:24:49,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:49,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 13:24:49,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:49,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:49,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:49,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:49,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 13:24:49,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:49,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 13:24:49,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:49,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 13:24:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:24:49,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:49,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:50,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:50,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:50,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 13:24:50,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:50,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 13:24:50,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:50,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:50,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 13:24:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 13:24:50,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:50,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:50,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:50,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:50,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 13:24:50,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:50,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 13:24:50,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:50,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:50,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 13:24:50,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:24:50,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:24:50,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:50,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:50,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:50,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:24:50,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:50,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-25 13:24:50,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:50,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:24:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 13:24:50,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:24:50,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:50,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:50,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:50,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:24:50,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:50,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 13:24:50,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:50,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:24:50,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:50,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:24:50,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:24:50,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:50,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:51,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:51,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:24:51,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:51,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 13:24:51,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:51,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:24:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:24:51,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:24:51,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:51,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:51,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:51,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:51,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:51,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 13:24:51,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:51,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:51,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:24:51,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:24:51,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:51,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:51,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:51,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:51,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:51,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:51,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:24:51,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:51,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:51,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:51,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:51,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:51,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:24:51,265 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 11 proven. 297 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-09-25 13:24:51,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557819414] [2020-09-25 13:24:51,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:51,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 13:24:51,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39737196] [2020-09-25 13:24:51,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 13:24:51,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:51,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 13:24:51,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-25 13:24:51,268 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 17 states. [2020-09-25 13:24:51,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:51,457 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-09-25 13:24:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 13:24:51,458 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2020-09-25 13:24:51,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:51,459 INFO L225 Difference]: With dead ends: 84 [2020-09-25 13:24:51,459 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 13:24:51,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-25 13:24:51,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 13:24:51,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-25 13:24:51,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 13:24:51,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-25 13:24:51,467 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 104 [2020-09-25 13:24:51,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:51,467 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-25 13:24:51,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 13:24:51,467 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-25 13:24:51,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 13:24:51,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:51,468 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:51,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 13:24:51,469 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:51,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:51,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1287598415, now seen corresponding path program 12 times [2020-09-25 13:24:51,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:51,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711317262] [2020-09-25 13:24:51,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:51,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:52,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:52,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 13:24:52,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:52,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 827 [2020-09-25 13:24:52,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:52,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:52,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 13:24:52,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:52,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 13:24:52,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:52,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:52,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:52,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:52,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:52,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:52,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:24:52,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:52,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:52,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:52,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:52,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:53,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:53,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 13:24:53,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:53,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 877 [2020-09-25 13:24:53,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:53,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:53,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 13:24:53,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:53,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 13:24:53,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:53,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:53,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:53,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:53,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 13:24:53,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:53,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-09-25 13:24:53,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:53,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:53,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 13:24:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 13:24:53,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:54,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:54,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:54,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:54,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 13:24:54,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:54,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-09-25 13:24:54,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:54,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:54,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 13:24:54,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:54,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 13:24:54,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:54,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:54,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:55,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:55,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 13:24:55,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:55,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-09-25 13:24:55,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:55,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:55,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 13:24:55,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:55,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 13:24:55,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:55,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:55,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:55,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:55,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 13:24:55,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:55,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-09-25 13:24:55,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:55,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:55,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 13:24:55,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:55,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 13:24:55,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:55,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:55,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:55,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:55,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 13:24:55,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:55,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-09-25 13:24:55,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:55,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:55,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 13:24:55,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:55,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:24:55,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:55,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:55,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:56,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:56,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 13:24:56,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:56,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-25 13:24:56,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:56,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:56,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 13:24:56,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:56,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 13:24:56,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:56,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:56,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:56,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:56,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 13:24:56,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:56,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 13:24:56,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:56,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:56,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 13:24:56,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:56,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:24:56,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:56,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:56,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:56,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:56,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:24:56,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:56,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 13:24:56,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:56,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:56,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:24:56,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:56,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 13:24:56,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:56,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:56,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:56,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:56,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:24:56,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:56,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 13:24:56,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:56,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:24:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:56,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:24:56,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:56,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:56,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:56,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:56,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:24:56,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:56,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 13:24:56,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:56,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:56,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:24:56,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:56,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:24:56,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:56,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:56,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:56,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:56,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:24:56,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:56,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 13:24:56,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:56,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:56,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:24:56,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:56,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:24:56,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:56,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:56,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:56,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:56,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:24:56,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:56,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:24:56,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:56,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:56,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:24:56,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:56,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:24:56,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:56,958 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 22 proven. 374 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-09-25 13:24:56,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711317262] [2020-09-25 13:24:56,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:24:56,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 13:24:56,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109255298] [2020-09-25 13:24:56,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 13:24:56,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:24:56,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 13:24:56,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:24:56,960 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 18 states. [2020-09-25 13:24:57,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:24:57,205 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2020-09-25 13:24:57,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:24:57,206 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-09-25 13:24:57,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:24:57,207 INFO L225 Difference]: With dead ends: 89 [2020-09-25 13:24:57,207 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 13:24:57,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-25 13:24:57,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 13:24:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-09-25 13:24:57,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-25 13:24:57,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-09-25 13:24:57,214 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 112 [2020-09-25 13:24:57,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:24:57,214 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-09-25 13:24:57,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 13:24:57,215 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-09-25 13:24:57,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 13:24:57,216 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:24:57,216 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:24:57,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 13:24:57,216 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:24:57,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:24:57,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1612559463, now seen corresponding path program 13 times [2020-09-25 13:24:57,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:24:57,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276145499] [2020-09-25 13:24:57,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:24:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:57,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:58,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:58,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-25 13:24:58,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:58,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-09-25 13:24:58,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:58,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 13:24:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:24:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 13:24:58,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:58,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:24:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:58,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:58,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:58,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:24:58,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:58,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:24:58,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:58,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:58,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:24:58,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:58,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:24:58,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:58,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:24:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:58,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:59,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:59,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 13:24:59,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:59,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-09-25 13:24:59,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:59,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:59,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 13:24:59,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:24:59,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 13:24:59,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:24:59,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:59,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:24:59,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:24:59,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 13:24:59,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:24:59,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 795 [2020-09-25 13:24:59,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:24:59,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:24:59,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 13:24:59,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:24:59,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 13:24:59,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:24:59,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:24:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:24:59,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:00,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:00,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 13:25:00,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:00,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 652 [2020-09-25 13:25:00,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:00,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 13:25:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 13:25:00,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:00,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:00,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:01,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:01,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 13:25:01,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:01,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-09-25 13:25:01,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:01,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:01,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 13:25:01,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:01,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 13:25:01,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:01,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:01,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:01,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:01,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 13:25:01,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:01,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-09-25 13:25:01,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:01,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 13:25:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:01,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 13:25:01,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:01,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:01,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:02,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:02,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 13:25:02,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:02,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-09-25 13:25:02,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:02,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 13:25:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 13:25:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:02,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:02,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:02,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:02,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 13:25:02,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:02,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-09-25 13:25:02,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:02,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 13:25:02,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:02,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:25:02,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:02,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:02,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:02,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:02,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 13:25:02,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:02,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 13:25:02,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:02,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 13:25:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 13:25:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:02,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:02,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:02,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:02,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 13:25:02,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:02,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 13:25:02,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:02,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 13:25:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:25:02,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:02,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:02,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:03,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:03,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:25:03,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:03,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 13:25:03,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:03,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:03,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:25:03,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:03,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 13:25:03,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:03,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:03,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:03,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:03,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:25:03,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:03,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 13:25:03,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:03,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:03,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:25:03,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:03,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:25:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:03,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:03,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:03,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:03,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:25:03,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:03,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 13:25:03,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:03,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:25:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:25:03,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:03,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:03,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:03,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:03,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:25:03,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:03,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 13:25:03,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:03,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:25:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:25:03,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:03,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:03,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:03,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:03,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:25:03,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:03,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:25:03,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:03,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:03,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:25:03,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:03,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:25:03,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:03,504 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 25 proven. 488 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-09-25 13:25:03,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276145499] [2020-09-25 13:25:03,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:25:03,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 13:25:03,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203585354] [2020-09-25 13:25:03,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 13:25:03,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:03,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 13:25:03,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:25:03,506 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 20 states. [2020-09-25 13:25:03,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:03,789 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-09-25 13:25:03,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 13:25:03,790 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 120 [2020-09-25 13:25:03,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:03,791 INFO L225 Difference]: With dead ends: 94 [2020-09-25 13:25:03,791 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 13:25:03,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=399, Invalid=723, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 13:25:03,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 13:25:03,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-09-25 13:25:03,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-25 13:25:03,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2020-09-25 13:25:03,797 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 120 [2020-09-25 13:25:03,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:03,797 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2020-09-25 13:25:03,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 13:25:03,797 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2020-09-25 13:25:03,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-25 13:25:03,799 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:03,799 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:03,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 13:25:03,800 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:03,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:03,800 INFO L82 PathProgramCache]: Analyzing trace with hash 996432753, now seen corresponding path program 14 times [2020-09-25 13:25:03,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:03,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947705087] [2020-09-25 13:25:03,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:03,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:04,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:04,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 13:25:04,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:04,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-25 13:25:04,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:04,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 13:25:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:25:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:25:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:04,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:04,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:04,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:04,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:04,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:04,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:25:04,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:04,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:04,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:04,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:04,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:25:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:04,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:05,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:05,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 13:25:05,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:05,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1057 [2020-09-25 13:25:05,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:05,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 13:25:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:25:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 13:25:05,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:05,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:05,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:06,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:06,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 13:25:06,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:06,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 889 [2020-09-25 13:25:06,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:06,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:06,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 13:25:06,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:06,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 13:25:06,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:06,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:06,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:07,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:07,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 13:25:07,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:07,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 758 [2020-09-25 13:25:07,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:07,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 13:25:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 13:25:07,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:07,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:07,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:08,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:08,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 13:25:08,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:08,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 680 [2020-09-25 13:25:08,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:08,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:08,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 13:25:08,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:08,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 13:25:08,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:08,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:08,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:08,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:08,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 13:25:08,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:08,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 542 [2020-09-25 13:25:08,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:08,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 13:25:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:08,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 13:25:08,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:08,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:08,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:09,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:09,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 13:25:09,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:09,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-09-25 13:25:09,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:09,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 13:25:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 13:25:09,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:09,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:09,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:09,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:09,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 13:25:09,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:09,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-25 13:25:09,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:09,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:09,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 13:25:09,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:09,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 13:25:09,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:09,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:09,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:10,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:10,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 13:25:10,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:10,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-25 13:25:10,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:10,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 13:25:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:25:10,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:10,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:10,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:10,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:10,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 13:25:10,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:10,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-25 13:25:10,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:10,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:10,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 13:25:10,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:10,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 13:25:10,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:10,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:10,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:10,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:10,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 13:25:10,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 13:25:10,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:10,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 13:25:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:25:10,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:10,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:10,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:10,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:10,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:25:10,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:10,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 13:25:10,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:10,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:10,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:25:10,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:10,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 13:25:10,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:10,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:10,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:10,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:10,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:25:10,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:10,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 13:25:10,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:10,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:10,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:25:10,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:10,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:25:10,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:10,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:10,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:11,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:11,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:25:11,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:11,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 13:25:11,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:11,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:25:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:25:11,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:11,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:11,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:11,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:11,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:25:11,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:11,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 13:25:11,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:11,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:25:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:25:11,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:11,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:11,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:11,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:11,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:25:11,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:11,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:25:11,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:11,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:11,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:25:11,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:11,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:25:11,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:11,204 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 42 proven. 545 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2020-09-25 13:25:11,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947705087] [2020-09-25 13:25:11,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:25:11,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 13:25:11,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290633497] [2020-09-25 13:25:11,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 13:25:11,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:11,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 13:25:11,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:25:11,206 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand 20 states. [2020-09-25 13:25:11,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:11,487 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2020-09-25 13:25:11,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 13:25:11,487 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 128 [2020-09-25 13:25:11,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:11,488 INFO L225 Difference]: With dead ends: 99 [2020-09-25 13:25:11,488 INFO L226 Difference]: Without dead ends: 93 [2020-09-25 13:25:11,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=428, Invalid=762, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 13:25:11,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-25 13:25:11,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-25 13:25:11,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 13:25:11,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-25 13:25:11,501 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 128 [2020-09-25 13:25:11,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:11,502 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-25 13:25:11,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 13:25:11,502 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-25 13:25:11,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 13:25:11,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:11,504 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:11,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 13:25:11,504 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:11,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:11,505 INFO L82 PathProgramCache]: Analyzing trace with hash 418248103, now seen corresponding path program 15 times [2020-09-25 13:25:11,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:11,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936158686] [2020-09-25 13:25:11,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:11,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:12,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:12,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 13:25:12,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:12,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1329 [2020-09-25 13:25:12,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:12,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 13:25:12,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-09-25 13:25:12,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-25 13:25:12,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:12,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:12,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:12,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:12,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:12,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:12,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:25:12,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:12,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:12,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:12,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:12,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:12,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:12,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:25:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:12,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:14,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:14,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 13:25:14,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:14,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1201 [2020-09-25 13:25:14,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:14,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-25 13:25:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-09-25 13:25:14,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:14,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:14,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:15,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:15,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 13:25:15,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:15,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 992 [2020-09-25 13:25:15,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:15,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 13:25:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 13:25:15,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:15,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:15,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:16,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:16,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 13:25:16,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:16,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 903 [2020-09-25 13:25:16,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:16,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:16,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 13:25:16,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:16,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-25 13:25:16,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:16,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:16,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:17,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:17,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 13:25:17,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:17,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 790 [2020-09-25 13:25:17,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:17,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:17,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 13:25:17,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:17,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 13:25:17,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:17,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:17,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:17,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:17,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 13:25:17,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:17,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-09-25 13:25:17,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:17,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:17,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 13:25:17,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:17,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 13:25:17,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:17,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:25:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:17,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:18,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:18,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 13:25:18,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:18,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-09-25 13:25:18,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:18,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:18,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 13:25:18,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:18,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 13:25:18,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1