/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/soft_float_5a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:16:52,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:16:52,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:16:52,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:16:52,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:16:52,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:16:52,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:16:52,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:16:52,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:16:52,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:16:52,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:16:52,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:16:52,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:16:52,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:16:52,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:16:52,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:16:52,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:16:52,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:16:52,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:16:52,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:16:52,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:16:52,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:16:52,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:16:52,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:16:52,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:16:52,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:16:52,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:16:52,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:16:52,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:16:52,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:16:52,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:16:52,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:16:52,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:16:52,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:16:52,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:16:52,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:16:52,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:16:52,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:16:52,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:16:52,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:16:52,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:16:52,481 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 04:16:52,506 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:16:52,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:16:52,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:16:52,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:16:52,508 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:16:52,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:16:52,509 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:16:52,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:16:52,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:16:52,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:16:52,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:16:52,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:16:52,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:16:52,510 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:16:52,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:16:52,510 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:16:52,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:16:52,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:16:52,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:16:52,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:16:52,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:16:52,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:16:52,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:16:52,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:16:52,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:16:52,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:16:52,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:16:52,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:16:52,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:16:52,514 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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:16:53,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:16:53,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:16:53,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:16:53,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:16:53,042 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:16:53,043 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_5a.c.cil.c [2020-09-25 04:16:53,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/534b1d4ad/7c548945fdb44d63a22610ff7b784d66/FLAG5e0375768 [2020-09-25 04:16:53,682 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:16:53,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/soft_float_5a.c.cil.c [2020-09-25 04:16:53,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/534b1d4ad/7c548945fdb44d63a22610ff7b784d66/FLAG5e0375768 [2020-09-25 04:16:54,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/534b1d4ad/7c548945fdb44d63a22610ff7b784d66 [2020-09-25 04:16:54,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:16:54,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:16:54,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:16:54,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:16:54,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:16:54,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:16:54" (1/1) ... [2020-09-25 04:16:54,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2acd657e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:54, skipping insertion in model container [2020-09-25 04:16:54,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:16:54" (1/1) ... [2020-09-25 04:16:54,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:16:54,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:16:54,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:16:54,360 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:16:54,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:16:54,530 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:16:54,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:54 WrapperNode [2020-09-25 04:16:54,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:16:54,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:16:54,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:16:54,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:16:54,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:54" (1/1) ... [2020-09-25 04:16:54,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:54" (1/1) ... [2020-09-25 04:16:54,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:54" (1/1) ... [2020-09-25 04:16:54,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:54" (1/1) ... [2020-09-25 04:16:54,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:54" (1/1) ... [2020-09-25 04:16:54,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:54" (1/1) ... [2020-09-25 04:16:54,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:54" (1/1) ... [2020-09-25 04:16:54,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:16:54,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:16:54,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:16:54,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:16:54,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:54" (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 04:16:54,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:16:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:16:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 04:16:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2020-09-25 04:16:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2020-09-25 04:16:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2020-09-25 04:16:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:16:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:16:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 04:16:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 04:16:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 04:16:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2020-09-25 04:16:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2020-09-25 04:16:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2020-09-25 04:16:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:16:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:16:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:16:55,299 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:16:55,300 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 04:16:55,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:16:55 BoogieIcfgContainer [2020-09-25 04:16:55,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:16:55,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:16:55,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:16:55,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:16:55,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:16:54" (1/3) ... [2020-09-25 04:16:55,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd9ad53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:16:55, skipping insertion in model container [2020-09-25 04:16:55,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:54" (2/3) ... [2020-09-25 04:16:55,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd9ad53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:16:55, skipping insertion in model container [2020-09-25 04:16:55,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:16:55" (3/3) ... [2020-09-25 04:16:55,330 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2020-09-25 04:16:55,342 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:16:55,353 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:16:55,376 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:16:55,412 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:16:55,412 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:16:55,412 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:16:55,412 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:16:55,413 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:16:55,413 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:16:55,413 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:16:55,413 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:16:55,435 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2020-09-25 04:16:55,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-25 04:16:55,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:16:55,450 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:16:55,450 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:16:55,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:16:55,456 INFO L82 PathProgramCache]: Analyzing trace with hash -2062280112, now seen corresponding path program 1 times [2020-09-25 04:16:55,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:16:55,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625689857] [2020-09-25 04:16:55,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:16:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:55,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:55,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:56,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:56,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:57,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:57,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 04:16:57,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:16:57,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1480 [2020-09-25 04:16:57,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:57,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:57,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:16:57,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-25 04:16:57,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:16:57,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:16:57,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:16:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:57,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:57,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:57,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:16:57,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:57,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:16:57,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:57,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:57,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:57,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:57,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:16:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:57,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:57,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:57,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:16:57,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:57,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:16:57,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:57,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:57,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:57,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:57,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:57,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:57,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:16:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:57,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:57,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:57,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:57,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:16:57,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:16:57,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:16:57,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:57,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:57,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:57,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 04:16:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:57,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:57,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:57,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:16:57,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:57,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:16:57,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:57,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:57,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:16:57,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 04:16:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:57,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:57,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:57,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:16:57,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:57,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:16:57,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:57,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:57,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:57,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:57,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:57,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:16:57,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 04:16:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:57,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:57,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:57,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:16:57,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:57,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:16:57,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:57,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:16:57,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:16:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 04:16:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-09-25 04:16:57,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625689857] [2020-09-25 04:16:57,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:16:57,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:16:57,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242607990] [2020-09-25 04:16:57,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:16:57,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:16:57,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:16:57,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:16:57,371 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 3 states. [2020-09-25 04:16:57,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:16:57,461 INFO L93 Difference]: Finished difference Result 253 states and 309 transitions. [2020-09-25 04:16:57,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:16:57,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-09-25 04:16:57,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:16:57,487 INFO L225 Difference]: With dead ends: 253 [2020-09-25 04:16:57,487 INFO L226 Difference]: Without dead ends: 126 [2020-09-25 04:16:57,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:16:57,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-09-25 04:16:57,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-09-25 04:16:57,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-25 04:16:57,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 144 transitions. [2020-09-25 04:16:57,583 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 144 transitions. Word has length 100 [2020-09-25 04:16:57,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:16:57,594 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 144 transitions. [2020-09-25 04:16:57,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:16:57,595 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 144 transitions. [2020-09-25 04:16:57,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 04:16:57,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:16:57,613 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:16:57,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:16:57,614 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:16:57,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:16:57,614 INFO L82 PathProgramCache]: Analyzing trace with hash -2043535721, now seen corresponding path program 1 times [2020-09-25 04:16:57,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:16:57,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008767449] [2020-09-25 04:16:57,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:16:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:57,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:57,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:57,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:57,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:00,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:00,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:00,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:00,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:01,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:02,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:02,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 04:17:02,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 04:17:02,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 04:17:02,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:02,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:02,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:17:02,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-09-25 04:17:02,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:17:02,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:02,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:02,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:02,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:02,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:02,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:02,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:02,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:02,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:02,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:02,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:02,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:17:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:02,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:02,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:02,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:02,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:02,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:02,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:02,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:02,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:02,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:02,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:02,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:17:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:02,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:02,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:02,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:02,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:02,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:17:02,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:17:02,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:02,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:02,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:02,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 04:17:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:02,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:02,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:02,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:02,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:02,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:02,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:02,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:02,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:02,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:02,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:02,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:02,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 04:17:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:02,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:02,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:02,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:02,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:02,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:02,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:02,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:02,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:02,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:02,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:02,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:02,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-25 04:17:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:02,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:02,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:02,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:17:02,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:02,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:17:02,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:02,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:02,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:17:02,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:02,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:17:02,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-09-25 04:17:02,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008767449] [2020-09-25 04:17:02,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:17:02,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:17:02,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090109042] [2020-09-25 04:17:02,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:17:02,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:02,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:17:02,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:17:02,792 INFO L87 Difference]: Start difference. First operand 126 states and 144 transitions. Second operand 4 states. [2020-09-25 04:17:02,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:02,835 INFO L93 Difference]: Finished difference Result 142 states and 162 transitions. [2020-09-25 04:17:02,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:17:02,835 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2020-09-25 04:17:02,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:02,838 INFO L225 Difference]: With dead ends: 142 [2020-09-25 04:17:02,838 INFO L226 Difference]: Without dead ends: 125 [2020-09-25 04:17:02,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:17:02,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-25 04:17:02,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-09-25 04:17:02,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-25 04:17:02,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 142 transitions. [2020-09-25 04:17:02,851 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 142 transitions. Word has length 102 [2020-09-25 04:17:02,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:02,852 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 142 transitions. [2020-09-25 04:17:02,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:17:02,852 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 142 transitions. [2020-09-25 04:17:02,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 04:17:02,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:02,856 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:02,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:17:02,856 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:02,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:02,857 INFO L82 PathProgramCache]: Analyzing trace with hash -728440265, now seen corresponding path program 1 times [2020-09-25 04:17:02,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:02,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52811144] [2020-09-25 04:17:02,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:02,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:02,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:02,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:03,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:03,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 04:17:07,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:17:07,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:17:07,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:17:07,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 04:17:07,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:17:07,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:07,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:07,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:07,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:07,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:07,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:17:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:07,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:07,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:07,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:17:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:07,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:17:07,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:17:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:17:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:17:07,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-25 04:17:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:07,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:07,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:07,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 04:17:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:07,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:07,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:07,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:07,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:07,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-25 04:17:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:17:07,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:17:07,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:07,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:17:07,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:07,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,998 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 04:17:07,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52811144] [2020-09-25 04:17:07,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:07,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 04:17:08,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42328017] [2020-09-25 04:17:08,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:17:08,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:08,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:17:08,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:17:08,001 INFO L87 Difference]: Start difference. First operand 125 states and 142 transitions. Second operand 4 states. [2020-09-25 04:17:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:08,117 INFO L93 Difference]: Finished difference Result 276 states and 324 transitions. [2020-09-25 04:17:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:17:08,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2020-09-25 04:17:08,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:08,122 INFO L225 Difference]: With dead ends: 276 [2020-09-25 04:17:08,123 INFO L226 Difference]: Without dead ends: 179 [2020-09-25 04:17:08,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:17:08,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-09-25 04:17:08,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 159. [2020-09-25 04:17:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-09-25 04:17:08,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 186 transitions. [2020-09-25 04:17:08,141 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 186 transitions. Word has length 102 [2020-09-25 04:17:08,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:08,141 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 186 transitions. [2020-09-25 04:17:08,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:17:08,142 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 186 transitions. [2020-09-25 04:17:08,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-25 04:17:08,143 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:08,144 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:08,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:17:08,144 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:08,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:08,145 INFO L82 PathProgramCache]: Analyzing trace with hash 174556480, now seen corresponding path program 1 times [2020-09-25 04:17:08,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:08,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303643124] [2020-09-25 04:17:08,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:08,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:08,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:08,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:08,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:13,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-25 04:17:13,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:17:13,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 04:17:13,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:13,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:13,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:17:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 04:17:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:17:13,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:13,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:13,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:13,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:13,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:13,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:13,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:13,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:13,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:13,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:17:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:13,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:13,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:13,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:13,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:13,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:13,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:13,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:13,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:13,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:13,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:17:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:13,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:13,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:17:13,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:13,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:17:13,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:13,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:13,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:17:13,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:17:13,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 04:17:13,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:13,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 04:17:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:13,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:13,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:13,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:13,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:13,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:13,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:13,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:13,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:13,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:13,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:13,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-25 04:17:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:13,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:13,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:13,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:13,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:13,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:13,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:13,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:13,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:13,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:13,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:13,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-25 04:17:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:13,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:13,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:17:13,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:13,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:17:13,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:13,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:17:13,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:13,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-25 04:17:13,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303643124] [2020-09-25 04:17:13,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:13,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 04:17:13,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529606254] [2020-09-25 04:17:13,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:17:13,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:13,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:17:13,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:17:13,298 INFO L87 Difference]: Start difference. First operand 159 states and 186 transitions. Second operand 4 states. [2020-09-25 04:17:13,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:13,394 INFO L93 Difference]: Finished difference Result 291 states and 342 transitions. [2020-09-25 04:17:13,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:17:13,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2020-09-25 04:17:13,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:13,396 INFO L225 Difference]: With dead ends: 291 [2020-09-25 04:17:13,397 INFO L226 Difference]: Without dead ends: 183 [2020-09-25 04:17:13,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:17:13,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-09-25 04:17:13,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2020-09-25 04:17:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 04:17:13,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 196 transitions. [2020-09-25 04:17:13,428 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 196 transitions. Word has length 105 [2020-09-25 04:17:13,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:13,428 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 196 transitions. [2020-09-25 04:17:13,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:17:13,429 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 196 transitions. [2020-09-25 04:17:13,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 04:17:13,431 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:13,431 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:13,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:17:13,431 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:13,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:13,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1053175091, now seen corresponding path program 1 times [2020-09-25 04:17:13,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:13,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872587909] [2020-09-25 04:17:13,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:13,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:18,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-25 04:17:18,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:17:18,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:17:18,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:18,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:17:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 04:17:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:17:18,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:18,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:18,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:18,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:18,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:18,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:18,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:18,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:18,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:18,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:17:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:18,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:18,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:18,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:18,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:18,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:18,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:18,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:18,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:17:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:18,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:18,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:17:18,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:18,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:17:18,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:18,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:17:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:17:18,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:17:18,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:18,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-25 04:17:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:18,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:18,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:18,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:18,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:18,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:18,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:18,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:18,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:18,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:18,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:18,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 04:17:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:18,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:18,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:18,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:18,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:18,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:18,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:18,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:18,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:18,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:18,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:18,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-25 04:17:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:18,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:18,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:17:18,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:18,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:18,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:18,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:17:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:18,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:18,565 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 04:17:18,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872587909] [2020-09-25 04:17:18,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:18,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 04:17:18,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925363305] [2020-09-25 04:17:18,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:17:18,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:18,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:17:18,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:17:18,568 INFO L87 Difference]: Start difference. First operand 167 states and 196 transitions. Second operand 4 states. [2020-09-25 04:17:18,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:18,691 INFO L93 Difference]: Finished difference Result 305 states and 360 transitions. [2020-09-25 04:17:18,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:17:18,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2020-09-25 04:17:18,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:18,695 INFO L225 Difference]: With dead ends: 305 [2020-09-25 04:17:18,696 INFO L226 Difference]: Without dead ends: 174 [2020-09-25 04:17:18,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:17:18,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-09-25 04:17:18,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 157. [2020-09-25 04:17:18,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-25 04:17:18,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 180 transitions. [2020-09-25 04:17:18,721 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 180 transitions. Word has length 107 [2020-09-25 04:17:18,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:18,721 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 180 transitions. [2020-09-25 04:17:18,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:17:18,722 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 180 transitions. [2020-09-25 04:17:18,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-09-25 04:17:18,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:18,723 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:18,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:17:18,723 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:18,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:18,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1153920056, now seen corresponding path program 1 times [2020-09-25 04:17:18,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:18,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789915445] [2020-09-25 04:17:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:18,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:19,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:23,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:23,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 04:17:23,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:17:23,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 04:17:23,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:23,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:23,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:17:23,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 04:17:23,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:17:23,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:23,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:23,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:23,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:23,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:23,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:23,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:23,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:23,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:23,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:23,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:17:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:23,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:23,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:23,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:23,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:23,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:23,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:23,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:23,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:23,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:23,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:23,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:17:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:23,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:23,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:23,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:17:23,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:23,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 04:17:23,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:23,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:17:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:17:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:17:23,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:23,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-25 04:17:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:23,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:23,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:23,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:23,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:23,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:23,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:23,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:23,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:23,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:23,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:23,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:23,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-25 04:17:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:23,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:23,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:23,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:23,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:23,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:23,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:23,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:23,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:17:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:23,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:23,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:23,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:17:23,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:23,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:23,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:23,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:23,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:23,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:17:23,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:23,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-25 04:17:23,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789915445] [2020-09-25 04:17:23,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:23,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 04:17:23,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393950349] [2020-09-25 04:17:23,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:17:23,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:23,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:17:23,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:17:23,850 INFO L87 Difference]: Start difference. First operand 157 states and 180 transitions. Second operand 5 states. [2020-09-25 04:17:23,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:23,942 INFO L93 Difference]: Finished difference Result 304 states and 355 transitions. [2020-09-25 04:17:23,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:17:23,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-09-25 04:17:23,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:23,945 INFO L225 Difference]: With dead ends: 304 [2020-09-25 04:17:23,945 INFO L226 Difference]: Without dead ends: 188 [2020-09-25 04:17:23,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:17:23,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-09-25 04:17:23,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 167. [2020-09-25 04:17:23,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 04:17:23,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 193 transitions. [2020-09-25 04:17:23,956 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 193 transitions. Word has length 110 [2020-09-25 04:17:23,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:23,957 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 193 transitions. [2020-09-25 04:17:23,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:17:23,957 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 193 transitions. [2020-09-25 04:17:23,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-09-25 04:17:23,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:23,958 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:23,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:17:23,959 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:23,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:23,959 INFO L82 PathProgramCache]: Analyzing trace with hash -856467222, now seen corresponding path program 1 times [2020-09-25 04:17:23,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:23,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116066662] [2020-09-25 04:17:23,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:23,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:24,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:24,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:24,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:24,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:28,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:28,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 04:17:28,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:17:28,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:17:28,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:28,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:28,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:17:28,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 04:17:28,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 04:17:28,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:28,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:28,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:28,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:28,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:28,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:28,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:28,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:28,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:28,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:28,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:28,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:28,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:17:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:28,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:28,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:28,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:28,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:28,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:17:28,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:28,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:28,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:29,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:17:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:29,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:29,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:17:29,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:29,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 04:17:29,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:29,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:17:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:17:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 04:17:29,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:17:29,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-25 04:17:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:29,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:29,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:29,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:29,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:29,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:29,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:29,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:29,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-25 04:17:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:29,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:29,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:29,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:29,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:17:29,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:29,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:29,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:29,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:17:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:29,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:29,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:17:29,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:29,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:29,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:29,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:29,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:29,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:17:29,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:29,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 04:17:29,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116066662] [2020-09-25 04:17:29,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:29,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 04:17:29,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800273884] [2020-09-25 04:17:29,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:17:29,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:29,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:17:29,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:17:29,172 INFO L87 Difference]: Start difference. First operand 167 states and 193 transitions. Second operand 5 states. [2020-09-25 04:17:29,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:29,269 INFO L93 Difference]: Finished difference Result 306 states and 359 transitions. [2020-09-25 04:17:29,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:17:29,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-09-25 04:17:29,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:29,272 INFO L225 Difference]: With dead ends: 306 [2020-09-25 04:17:29,272 INFO L226 Difference]: Without dead ends: 192 [2020-09-25 04:17:29,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:17:29,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-25 04:17:29,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 167. [2020-09-25 04:17:29,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 04:17:29,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 193 transitions. [2020-09-25 04:17:29,283 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 193 transitions. Word has length 110 [2020-09-25 04:17:29,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:29,283 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 193 transitions. [2020-09-25 04:17:29,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:17:29,283 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 193 transitions. [2020-09-25 04:17:29,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-25 04:17:29,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:29,285 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:29,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:17:29,285 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:29,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:29,286 INFO L82 PathProgramCache]: Analyzing trace with hash -812048320, now seen corresponding path program 2 times [2020-09-25 04:17:29,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:29,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59989800] [2020-09-25 04:17:29,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:29,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:34,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-25 04:17:34,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:17:34,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:17:34,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:34,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 04:17:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 04:17:34,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:34,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:34,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:34,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:34,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:34,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:34,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:34,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:34,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:17:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:34,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:34,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:34,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:34,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:17:34,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:34,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:17:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:34,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:17:34,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:34,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:17:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:34,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:34,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:17:34,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:17:34,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 04:17:34,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:34,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:17:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:17:34,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:34,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 04:17:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:34,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:34,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:34,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:34,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:34,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:34,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:17:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:17:34,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:34,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-25 04:17:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:34,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:34,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:34,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:34,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:34,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:34,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:34,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:17:34,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:34,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:17:34,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:34,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:17:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:34,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:34,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:17:34,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:34,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:17:34,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:34,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:34,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:17:34,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:34,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:17:34,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:34,533 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-09-25 04:17:34,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59989800] [2020-09-25 04:17:34,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:34,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 04:17:34,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514711130] [2020-09-25 04:17:34,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:17:34,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:34,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:17:34,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:17:34,536 INFO L87 Difference]: Start difference. First operand 167 states and 193 transitions. Second operand 6 states. [2020-09-25 04:17:34,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:34,611 INFO L93 Difference]: Finished difference Result 207 states and 250 transitions. [2020-09-25 04:17:34,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:17:34,612 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2020-09-25 04:17:34,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:34,614 INFO L225 Difference]: With dead ends: 207 [2020-09-25 04:17:34,614 INFO L226 Difference]: Without dead ends: 201 [2020-09-25 04:17:34,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:17:34,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-09-25 04:17:34,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 190. [2020-09-25 04:17:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-25 04:17:34,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 224 transitions. [2020-09-25 04:17:34,626 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 224 transitions. Word has length 115 [2020-09-25 04:17:34,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:34,627 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 224 transitions. [2020-09-25 04:17:34,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:17:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 224 transitions. [2020-09-25 04:17:34,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-09-25 04:17:34,629 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:34,629 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:34,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:17:34,629 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:34,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:34,630 INFO L82 PathProgramCache]: Analyzing trace with hash -515723641, now seen corresponding path program 1 times [2020-09-25 04:17:34,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:34,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802966950] [2020-09-25 04:17:34,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:34,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-25 04:17:35,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:17:35,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-09-25 04:17:35,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 04:17:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:17:35,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:35,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:35,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:35,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:35,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:35,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:17:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:35,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:35,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:35,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:35,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:35,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:35,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:17:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:17:35,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 04:17:35,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:35,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:17:35,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:17:35,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:35,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 04:17:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:35,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:35,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:35,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:35,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:35,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:35,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-25 04:17:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:35,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:35,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:35,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:35,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:35,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:35,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:17:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:17:35,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:35,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:35,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:17:35,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:35,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-25 04:17:35,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802966950] [2020-09-25 04:17:35,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:35,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 04:17:35,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655215857] [2020-09-25 04:17:35,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:17:35,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:35,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:17:35,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:17:35,299 INFO L87 Difference]: Start difference. First operand 190 states and 224 transitions. Second operand 6 states. [2020-09-25 04:17:35,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:35,405 INFO L93 Difference]: Finished difference Result 375 states and 460 transitions. [2020-09-25 04:17:35,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:17:35,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2020-09-25 04:17:35,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:35,407 INFO L225 Difference]: With dead ends: 375 [2020-09-25 04:17:35,407 INFO L226 Difference]: Without dead ends: 237 [2020-09-25 04:17:35,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:17:35,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-09-25 04:17:35,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 200. [2020-09-25 04:17:35,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-09-25 04:17:35,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 237 transitions. [2020-09-25 04:17:35,421 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 237 transitions. Word has length 117 [2020-09-25 04:17:35,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:35,421 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 237 transitions. [2020-09-25 04:17:35,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:17:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 237 transitions. [2020-09-25 04:17:35,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-09-25 04:17:35,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:35,424 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:35,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:17:35,424 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:35,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:35,424 INFO L82 PathProgramCache]: Analyzing trace with hash 237385401, now seen corresponding path program 1 times [2020-09-25 04:17:35,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:35,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987371002] [2020-09-25 04:17:35,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-25 04:17:35,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:17:35,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-09-25 04:17:35,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 04:17:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:17:35,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:35,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:35,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:35,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:35,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:35,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:17:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:35,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:35,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:35,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:35,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:17:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:17:35,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 04:17:35,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:17:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:17:35,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:36,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 04:17:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:36,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:36,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:36,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:36,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:36,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:36,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:36,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:36,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-25 04:17:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:36,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:36,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:36,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:36,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:36,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:36,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:36,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:36,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:17:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:36,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:36,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:36,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:17:36,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:36,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:36,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:36,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:36,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:36,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:17:36,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:36,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:36,097 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 04:17:36,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987371002] [2020-09-25 04:17:36,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:36,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 04:17:36,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242044320] [2020-09-25 04:17:36,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:17:36,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:36,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:17:36,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:17:36,100 INFO L87 Difference]: Start difference. First operand 200 states and 237 transitions. Second operand 6 states. [2020-09-25 04:17:36,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:36,225 INFO L93 Difference]: Finished difference Result 365 states and 450 transitions. [2020-09-25 04:17:36,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:17:36,225 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2020-09-25 04:17:36,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:36,227 INFO L225 Difference]: With dead ends: 365 [2020-09-25 04:17:36,227 INFO L226 Difference]: Without dead ends: 229 [2020-09-25 04:17:36,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:17:36,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-09-25 04:17:36,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 200. [2020-09-25 04:17:36,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-09-25 04:17:36,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 237 transitions. [2020-09-25 04:17:36,241 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 237 transitions. Word has length 117 [2020-09-25 04:17:36,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:36,242 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 237 transitions. [2020-09-25 04:17:36,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:17:36,242 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 237 transitions. [2020-09-25 04:17:36,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-25 04:17:36,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:36,244 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:36,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:17:36,245 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:36,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:36,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1273487743, now seen corresponding path program 2 times [2020-09-25 04:17:36,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:36,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287160898] [2020-09-25 04:17:36,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:36,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:36,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:36,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:36,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 04:17:36,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:17:36,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 618 [2020-09-25 04:17:36,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:36,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:36,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:17:36,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 04:17:36,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 04:17:36,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:36,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:36,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:36,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:36,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:36,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:36,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:36,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:36,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:36,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:36,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:36,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:36,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:17:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:36,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:36,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:36,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:36,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:36,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:36,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:36,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:36,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:36,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:36,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:36,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:17:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:36,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:36,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:36,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 04:17:36,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:36,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 04:17:36,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:36,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:17:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:17:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 04:17:36,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:37,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-25 04:17:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:37,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:37,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:37,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:37,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:37,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 04:17:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:37,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:37,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:37,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:37,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:37,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-25 04:17:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:17:37,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:37,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:17:37,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:37,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:17:37,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:37,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:37,068 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-25 04:17:37,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287160898] [2020-09-25 04:17:37,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:37,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:17:37,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238716694] [2020-09-25 04:17:37,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:17:37,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:37,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:17:37,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:17:37,070 INFO L87 Difference]: Start difference. First operand 200 states and 237 transitions. Second operand 7 states. [2020-09-25 04:17:37,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:37,187 INFO L93 Difference]: Finished difference Result 407 states and 502 transitions. [2020-09-25 04:17:37,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:17:37,191 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2020-09-25 04:17:37,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:37,194 INFO L225 Difference]: With dead ends: 407 [2020-09-25 04:17:37,194 INFO L226 Difference]: Without dead ends: 264 [2020-09-25 04:17:37,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:17:37,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-25 04:17:37,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 210. [2020-09-25 04:17:37,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-25 04:17:37,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 250 transitions. [2020-09-25 04:17:37,214 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 250 transitions. Word has length 122 [2020-09-25 04:17:37,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:37,215 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 250 transitions. [2020-09-25 04:17:37,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:17:37,215 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 250 transitions. [2020-09-25 04:17:37,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-25 04:17:37,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:37,217 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:37,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:17:37,218 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:37,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:37,218 INFO L82 PathProgramCache]: Analyzing trace with hash 2026596785, now seen corresponding path program 2 times [2020-09-25 04:17:37,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:37,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714900253] [2020-09-25 04:17:37,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 04:17:37,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:17:37,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-09-25 04:17:37,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:17:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 04:17:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:17:37,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:37,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:37,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:37,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:37,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:37,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:37,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:37,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:37,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:17:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:37,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:37,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:37,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:37,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:37,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:17:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 04:17:37,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 04:17:37,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:17:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:17:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:17:37,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:37,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-25 04:17:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:37,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:37,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:37,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:37,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:37,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:37,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:37,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 04:17:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:17:37,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:37,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:37,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:37,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:37,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:37,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:37,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-25 04:17:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:17:37,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:37,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:37,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:37,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:17:37,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:37,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 7 proven. 29 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 04:17:38,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714900253] [2020-09-25 04:17:38,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:38,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:17:38,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207991328] [2020-09-25 04:17:38,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:17:38,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:38,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:17:38,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:17:38,027 INFO L87 Difference]: Start difference. First operand 210 states and 250 transitions. Second operand 7 states. [2020-09-25 04:17:38,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:38,320 INFO L93 Difference]: Finished difference Result 402 states and 499 transitions. [2020-09-25 04:17:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:17:38,321 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2020-09-25 04:17:38,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:38,322 INFO L225 Difference]: With dead ends: 402 [2020-09-25 04:17:38,323 INFO L226 Difference]: Without dead ends: 250 [2020-09-25 04:17:38,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:17:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-25 04:17:38,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 210. [2020-09-25 04:17:38,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-25 04:17:38,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 247 transitions. [2020-09-25 04:17:38,336 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 247 transitions. Word has length 122 [2020-09-25 04:17:38,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:38,336 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 247 transitions. [2020-09-25 04:17:38,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:17:38,336 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 247 transitions. [2020-09-25 04:17:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-25 04:17:38,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:38,338 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:38,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:17:38,339 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:38,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:38,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1176254073, now seen corresponding path program 3 times [2020-09-25 04:17:38,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:38,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26175312] [2020-09-25 04:17:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:38,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:38,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking...