/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:24:48,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:24:48,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:24:48,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:24:48,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:24:48,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:24:48,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:24:48,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:24:48,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:24:48,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:24:48,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:24:48,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:24:48,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:24:48,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:24:48,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:24:48,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:24:48,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:24:48,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:24:48,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:24:48,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:24:48,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:24:48,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:24:48,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:24:48,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:24:48,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:24:48,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:24:48,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:24:48,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:24:48,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:24:48,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:24:48,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:24:48,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:24:48,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:24:48,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:24:48,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:24:48,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:24:48,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:24:48,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:24:48,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:24:48,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:24:48,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:24:48,720 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 [2020-09-21 11:24:48,768 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:24:48,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:24:48,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:24:48,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:24:48,771 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:24:48,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:24:48,772 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:24:48,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:24:48,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:24:48,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:24:48,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:24:48,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:24:48,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:24:48,775 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:24:48,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:24:48,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:24:48,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:24:48,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:24:48,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:24:48,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:24:48,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:24:48,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:24:48,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:24:48,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:24:48,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:24:48,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:24:48,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:24:48,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:24:48,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:24:48,779 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:24:49,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:24:49,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:24:49,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:24:49,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:24:49,316 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:24:49,318 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-09-21 11:24:49,401 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60773a80c/6c7a91f95e2f44998a84b9038fa97425/FLAGcc5459d7f [2020-09-21 11:24:50,075 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:24:50,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-09-21 11:24:50,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60773a80c/6c7a91f95e2f44998a84b9038fa97425/FLAGcc5459d7f [2020-09-21 11:24:50,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60773a80c/6c7a91f95e2f44998a84b9038fa97425 [2020-09-21 11:24:50,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:24:50,338 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:24:50,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:24:50,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:24:50,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:24:50,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:24:50" (1/1) ... [2020-09-21 11:24:50,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4957d7b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:50, skipping insertion in model container [2020-09-21 11:24:50,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:24:50" (1/1) ... [2020-09-21 11:24:50,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:24:50,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:24:50,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:24:50,990 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:24:51,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:24:51,096 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:24:51,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:51 WrapperNode [2020-09-21 11:24:51,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:24:51,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:24:51,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:24:51,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:24:51,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:51" (1/1) ... [2020-09-21 11:24:51,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:51" (1/1) ... [2020-09-21 11:24:51,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:51" (1/1) ... [2020-09-21 11:24:51,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:51" (1/1) ... [2020-09-21 11:24:51,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:51" (1/1) ... [2020-09-21 11:24:51,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:51" (1/1) ... [2020-09-21 11:24:51,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:51" (1/1) ... [2020-09-21 11:24:51,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:24:51,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:24:51,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:24:51,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:24:51,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:51" (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 [2020-09-21 11:24:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:24:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:24:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:24:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:24:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:24:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:24:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:24:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:24:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:24:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:24:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:24:52,494 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:24:52,494 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:24:52,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:24:52 BoogieIcfgContainer [2020-09-21 11:24:52,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:24:52,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:24:52,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:24:52,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:24:52,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:24:50" (1/3) ... [2020-09-21 11:24:52,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c92cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:24:52, skipping insertion in model container [2020-09-21 11:24:52,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:51" (2/3) ... [2020-09-21 11:24:52,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c92cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:24:52, skipping insertion in model container [2020-09-21 11:24:52,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:24:52" (3/3) ... [2020-09-21 11:24:52,512 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-09-21 11:24:52,525 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:24:52,537 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:24:52,563 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:24:52,599 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:24:52,600 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:24:52,600 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:24:52,600 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:24:52,600 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:24:52,600 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:24:52,601 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:24:52,601 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:24:52,630 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-21 11:24:52,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 11:24:52,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:52,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:52,646 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:52,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:52,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1414431897, now seen corresponding path program 1 times [2020-09-21 11:24:52,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:52,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912718610] [2020-09-21 11:24:52,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:53,073 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:53,074 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:53,074 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:53,074 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:53,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:24:53,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:53,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-21 11:24:53,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:53,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:24:53,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:24:53,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:24:53,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:53,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:53,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:53,355 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:53,355 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:53,355 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:53,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:53,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:53,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:24:53,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:53,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:24:53,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:53,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:24:53,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:53,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:53,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912718610] [2020-09-21 11:24:53,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:24:53,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:24:53,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8482936] [2020-09-21 11:24:53,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:24:53,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:53,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:24:53,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:24:53,504 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-09-21 11:24:55,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:55,170 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-09-21 11:24:55,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:24:55,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-09-21 11:24:55,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:55,193 INFO L225 Difference]: With dead ends: 557 [2020-09-21 11:24:55,193 INFO L226 Difference]: Without dead ends: 286 [2020-09-21 11:24:55,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:24:55,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-21 11:24:55,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-09-21 11:24:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-21 11:24:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-09-21 11:24:55,291 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 109 [2020-09-21 11:24:55,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:55,292 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-09-21 11:24:55,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:24:55,292 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-09-21 11:24:55,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-21 11:24:55,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:55,297 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:55,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:24:55,298 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:55,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:55,299 INFO L82 PathProgramCache]: Analyzing trace with hash -609512656, now seen corresponding path program 1 times [2020-09-21 11:24:55,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:55,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962206461] [2020-09-21 11:24:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:55,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:55,372 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:55,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:55,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:55,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:24:55,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:55,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:24:55,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:55,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:24:55,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:24:55,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:24:55,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:55,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:55,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:55,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:55,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:55,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:55,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:55,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:55,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:24:55,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:55,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:24:55,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:55,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:24:55,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:55,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:24:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:55,553 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:55,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:55,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:55,554 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:55,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:24:55,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:55,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:24:55,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:24:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:24:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:24:55,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:55,615 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:55,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962206461] [2020-09-21 11:24:55,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:24:55,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:24:55,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643176780] [2020-09-21 11:24:55,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:24:55,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:55,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:24:55,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:24:55,620 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 8 states. [2020-09-21 11:24:57,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:57,197 INFO L93 Difference]: Finished difference Result 713 states and 1049 transitions. [2020-09-21 11:24:57,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:24:57,198 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-09-21 11:24:57,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:57,203 INFO L225 Difference]: With dead ends: 713 [2020-09-21 11:24:57,204 INFO L226 Difference]: Without dead ends: 439 [2020-09-21 11:24:57,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:24:57,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-09-21 11:24:57,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 421. [2020-09-21 11:24:57,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-09-21 11:24:57,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 590 transitions. [2020-09-21 11:24:57,255 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 590 transitions. Word has length 119 [2020-09-21 11:24:57,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:57,255 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 590 transitions. [2020-09-21 11:24:57,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:24:57,256 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 590 transitions. [2020-09-21 11:24:57,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-21 11:24:57,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:57,260 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:57,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:24:57,261 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:57,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:57,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1252784430, now seen corresponding path program 1 times [2020-09-21 11:24:57,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:57,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297429932] [2020-09-21 11:24:57,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:57,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:24:57,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -16 [2020-09-21 11:24:57,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 16 [2020-09-21 11:24:57,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:57,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-21 11:24:57,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:57,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:24:57,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:57,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:24:57,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:24:57,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-21 11:24:57,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:57,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:57,633 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:57,634 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:57,634 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:57,634 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:57,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:57,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:57,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:57,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:57,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:24:57,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:24:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:57,673 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:57,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:57,674 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:57,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:57,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:24:57,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:57,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:24:57,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:57,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:24:57,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:57,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:24:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:57,861 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:57,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297429932] [2020-09-21 11:24:57,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:24:57,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:24:57,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013366585] [2020-09-21 11:24:57,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:24:57,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:57,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:24:57,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:24:57,868 INFO L87 Difference]: Start difference. First operand 421 states and 590 transitions. Second operand 5 states. [2020-09-21 11:24:59,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:59,075 INFO L93 Difference]: Finished difference Result 945 states and 1358 transitions. [2020-09-21 11:24:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:24:59,075 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-09-21 11:24:59,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:59,079 INFO L225 Difference]: With dead ends: 945 [2020-09-21 11:24:59,079 INFO L226 Difference]: Without dead ends: 427 [2020-09-21 11:24:59,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:24:59,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-21 11:24:59,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2020-09-21 11:24:59,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-09-21 11:24:59,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 552 transitions. [2020-09-21 11:24:59,117 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 552 transitions. Word has length 120 [2020-09-21 11:24:59,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:59,117 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 552 transitions. [2020-09-21 11:24:59,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:24:59,118 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 552 transitions. [2020-09-21 11:24:59,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-21 11:24:59,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:59,121 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:59,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:24:59,121 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:59,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:59,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1134301708, now seen corresponding path program 1 times [2020-09-21 11:24:59,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:59,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900535547] [2020-09-21 11:24:59,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:59,189 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:24:59,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -17 [2020-09-21 11:24:59,190 FATAL L256 erpolLogProxyWrapper]: Difference in width: 17 [2020-09-21 11:24:59,190 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:59,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 11:24:59,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:59,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:24:59,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:24:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:24:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:24:59,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:59,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:59,453 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:59,454 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:59,454 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:59,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:59,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:59,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:59,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:24:59,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:59,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:59,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:59,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:59,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:59,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:24:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:59,490 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:59,490 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:59,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:59,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:59,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 11:24:59,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:59,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:24:59,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:59,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:24:59,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:59,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:24:59,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:59,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900535547] [2020-09-21 11:24:59,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:24:59,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 11:24:59,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632615460] [2020-09-21 11:24:59,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:24:59,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:59,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:24:59,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:24:59,603 INFO L87 Difference]: Start difference. First operand 419 states and 552 transitions. Second operand 6 states. [2020-09-21 11:25:00,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:00,711 INFO L93 Difference]: Finished difference Result 924 states and 1249 transitions. [2020-09-21 11:25:00,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:00,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2020-09-21 11:25:00,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:00,718 INFO L225 Difference]: With dead ends: 924 [2020-09-21 11:25:00,718 INFO L226 Difference]: Without dead ends: 427 [2020-09-21 11:25:00,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:00,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-21 11:25:00,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2020-09-21 11:25:00,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-09-21 11:25:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 549 transitions. [2020-09-21 11:25:00,751 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 549 transitions. Word has length 121 [2020-09-21 11:25:00,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:00,751 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 549 transitions. [2020-09-21 11:25:00,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:25:00,752 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 549 transitions. [2020-09-21 11:25:00,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-21 11:25:00,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:00,760 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:00,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:25:00,761 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:00,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:00,761 INFO L82 PathProgramCache]: Analyzing trace with hash 107820154, now seen corresponding path program 1 times [2020-09-21 11:25:00,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:00,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053546228] [2020-09-21 11:25:00,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:00,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:00,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:00,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:00,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:00,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-21 11:25:00,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:00,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:25:00,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:25:00,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-21 11:25:00,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:00,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:00,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:00,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:00,973 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:00,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:00,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:00,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:00,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:00,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:00,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:00,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:01,003 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:01,003 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:01,003 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:01,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:01,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:25:01,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:01,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:01,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:25:01,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:01,039 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:01,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053546228] [2020-09-21 11:25:01,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:01,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:01,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247390977] [2020-09-21 11:25:01,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:01,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:01,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:01,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:01,046 INFO L87 Difference]: Start difference. First operand 419 states and 549 transitions. Second operand 5 states. [2020-09-21 11:25:02,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:02,327 INFO L93 Difference]: Finished difference Result 1116 states and 1483 transitions. [2020-09-21 11:25:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:02,328 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2020-09-21 11:25:02,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:02,331 INFO L225 Difference]: With dead ends: 1116 [2020-09-21 11:25:02,331 INFO L226 Difference]: Without dead ends: 427 [2020-09-21 11:25:02,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-21 11:25:02,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2020-09-21 11:25:02,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-09-21 11:25:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 528 transitions. [2020-09-21 11:25:02,350 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 528 transitions. Word has length 126 [2020-09-21 11:25:02,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:02,350 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 528 transitions. [2020-09-21 11:25:02,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:02,351 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 528 transitions. [2020-09-21 11:25:02,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 11:25:02,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:02,353 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:02,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:25:02,353 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:02,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:02,354 INFO L82 PathProgramCache]: Analyzing trace with hash 2093989440, now seen corresponding path program 1 times [2020-09-21 11:25:02,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:02,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440535012] [2020-09-21 11:25:02,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:02,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:02,396 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:02,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:02,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:02,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:25:02,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:02,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:25:02,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:02,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:02,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:02,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 11:25:02,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:02,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:02,477 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:02,478 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:02,478 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:02,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:02,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:02,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:02,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:02,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:02,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:02,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:02,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:02,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:02,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:02,521 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:02,521 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:02,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:02,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:02,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:25:02,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:02,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:25:02,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 11:25:02,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:02,578 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:02,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440535012] [2020-09-21 11:25:02,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:25:02,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:25:02,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399689366] [2020-09-21 11:25:02,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:02,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:02,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:02,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:02,582 INFO L87 Difference]: Start difference. First operand 419 states and 528 transitions. Second operand 8 states. [2020-09-21 11:25:04,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:04,266 INFO L93 Difference]: Finished difference Result 1273 states and 1688 transitions. [2020-09-21 11:25:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:25:04,267 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 127 [2020-09-21 11:25:04,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:04,277 INFO L225 Difference]: With dead ends: 1273 [2020-09-21 11:25:04,277 INFO L226 Difference]: Without dead ends: 860 [2020-09-21 11:25:04,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:25:04,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2020-09-21 11:25:04,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 842. [2020-09-21 11:25:04,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2020-09-21 11:25:04,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1045 transitions. [2020-09-21 11:25:04,337 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1045 transitions. Word has length 127 [2020-09-21 11:25:04,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:04,338 INFO L479 AbstractCegarLoop]: Abstraction has 842 states and 1045 transitions. [2020-09-21 11:25:04,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:04,338 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1045 transitions. [2020-09-21 11:25:04,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-21 11:25:04,343 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:04,343 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:04,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:25:04,344 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:04,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:04,345 INFO L82 PathProgramCache]: Analyzing trace with hash -601495216, now seen corresponding path program 1 times [2020-09-21 11:25:04,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:04,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785942976] [2020-09-21 11:25:04,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:04,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:04,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:04,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:04,407 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:04,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:25:04,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:04,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:25:04,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-21 11:25:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-21 11:25:04,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:04,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:04,534 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:04,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:04,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:04,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:04,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:04,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:04,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:04,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:04,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:04,570 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:04,570 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:04,571 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:04,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:04,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:25:04,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:04,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:04,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:25:04,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:04,626 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:04,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785942976] [2020-09-21 11:25:04,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:04,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:04,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848203298] [2020-09-21 11:25:04,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:04,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:04,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:04,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:04,629 INFO L87 Difference]: Start difference. First operand 842 states and 1045 transitions. Second operand 5 states. [2020-09-21 11:25:05,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:05,557 INFO L93 Difference]: Finished difference Result 2226 states and 2798 transitions. [2020-09-21 11:25:05,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:05,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-09-21 11:25:05,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:05,568 INFO L225 Difference]: With dead ends: 2226 [2020-09-21 11:25:05,568 INFO L226 Difference]: Without dead ends: 1390 [2020-09-21 11:25:05,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:05,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2020-09-21 11:25:05,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1110. [2020-09-21 11:25:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1110 states. [2020-09-21 11:25:05,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1359 transitions. [2020-09-21 11:25:05,636 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1359 transitions. Word has length 135 [2020-09-21 11:25:05,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:05,638 INFO L479 AbstractCegarLoop]: Abstraction has 1110 states and 1359 transitions. [2020-09-21 11:25:05,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:05,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1359 transitions. [2020-09-21 11:25:05,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-21 11:25:05,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:05,644 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:05,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:25:05,644 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:05,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:05,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1185649201, now seen corresponding path program 1 times [2020-09-21 11:25:05,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:05,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760028206] [2020-09-21 11:25:05,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:05,719 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:05,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:05,719 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:05,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:05,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-21 11:25:05,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:05,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:25:05,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-21 11:25:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:25:05,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:05,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:05,846 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:05,847 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:05,847 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:05,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:05,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:05,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:05,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:05,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:05,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:05,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:05,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:05,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:05,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:05,879 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:05,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:05,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:05,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:05,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:05,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:05,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:25:05,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:05,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 11:25:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:05,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:05,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:05,941 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:05,941 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:05,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:25:05,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:05,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:25:05,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:05,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:05,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 11:25:05,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:06,012 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:25:06,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760028206] [2020-09-21 11:25:06,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:06,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:06,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211147243] [2020-09-21 11:25:06,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:06,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:06,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:06,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:06,015 INFO L87 Difference]: Start difference. First operand 1110 states and 1359 transitions. Second operand 7 states. [2020-09-21 11:25:07,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:07,396 INFO L93 Difference]: Finished difference Result 2651 states and 3318 transitions. [2020-09-21 11:25:07,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:25:07,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-09-21 11:25:07,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:07,406 INFO L225 Difference]: With dead ends: 2651 [2020-09-21 11:25:07,406 INFO L226 Difference]: Without dead ends: 1547 [2020-09-21 11:25:07,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:25:07,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2020-09-21 11:25:07,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1263. [2020-09-21 11:25:07,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1263 states. [2020-09-21 11:25:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1505 transitions. [2020-09-21 11:25:07,470 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1505 transitions. Word has length 142 [2020-09-21 11:25:07,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:07,471 INFO L479 AbstractCegarLoop]: Abstraction has 1263 states and 1505 transitions. [2020-09-21 11:25:07,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1505 transitions. [2020-09-21 11:25:07,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-21 11:25:07,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:07,478 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:07,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:25:07,479 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:07,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:07,479 INFO L82 PathProgramCache]: Analyzing trace with hash 720782619, now seen corresponding path program 1 times [2020-09-21 11:25:07,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:07,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810104440] [2020-09-21 11:25:07,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:07,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:07,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:07,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:07,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:07,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-21 11:25:07,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:07,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:25:07,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:07,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:07,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-21 11:25:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-21 11:25:07,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:07,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:07,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:07,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:07,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:07,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:07,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:07,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:07,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:07,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:07,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:07,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:07,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:07,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:07,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:07,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:07,683 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:07,683 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:07,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:07,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:07,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:07,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:25:07,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:25:07,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:07,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 11:25:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:07,719 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:07,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:07,719 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:07,720 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:07,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 11:25:07,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:07,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:25:07,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:07,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:07,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:07,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:25:07,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:07,855 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:25:07,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810104440] [2020-09-21 11:25:07,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:07,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:07,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069171551] [2020-09-21 11:25:07,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:07,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:07,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:07,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:07,863 INFO L87 Difference]: Start difference. First operand 1263 states and 1505 transitions. Second operand 7 states. [2020-09-21 11:25:09,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:09,130 INFO L93 Difference]: Finished difference Result 2671 states and 3230 transitions. [2020-09-21 11:25:09,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:25:09,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 149 [2020-09-21 11:25:09,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:09,138 INFO L225 Difference]: With dead ends: 2671 [2020-09-21 11:25:09,139 INFO L226 Difference]: Without dead ends: 1549 [2020-09-21 11:25:09,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:25:09,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2020-09-21 11:25:09,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1541. [2020-09-21 11:25:09,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1541 states. [2020-09-21 11:25:09,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 1821 transitions. [2020-09-21 11:25:09,189 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 1821 transitions. Word has length 149 [2020-09-21 11:25:09,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:09,189 INFO L479 AbstractCegarLoop]: Abstraction has 1541 states and 1821 transitions. [2020-09-21 11:25:09,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:09,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 1821 transitions. [2020-09-21 11:25:09,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-21 11:25:09,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:09,195 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:09,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:25:09,196 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:09,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1844712986, now seen corresponding path program 1 times [2020-09-21 11:25:09,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:09,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672474971] [2020-09-21 11:25:09,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:09,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:09,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:09,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:09,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:09,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-21 11:25:09,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:09,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:25:09,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:09,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-21 11:25:09,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:25:09,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:09,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:09,363 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:09,363 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:09,364 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:09,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:09,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:09,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:09,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:09,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:09,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:09,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:09,401 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:09,401 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:09,401 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:09,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:09,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-21 11:25:09,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:09,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:25:09,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:25:09,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:09,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:25:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:09,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:09,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:09,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:09,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:09,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:09,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:09,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:25:09,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:09,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:09,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:09,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:09,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:09,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:25:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:09,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:09,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:09,509 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:09,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:09,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:25:09,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:09,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:09,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:09,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:09,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:25:09,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:09,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:09,644 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 92 proven. 14 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-09-21 11:25:09,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672474971] [2020-09-21 11:25:09,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:09,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:09,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333075949] [2020-09-21 11:25:09,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:09,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:09,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:09,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:09,647 INFO L87 Difference]: Start difference. First operand 1541 states and 1821 transitions. Second operand 7 states. [2020-09-21 11:25:10,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:10,841 INFO L93 Difference]: Finished difference Result 3374 states and 4090 transitions. [2020-09-21 11:25:10,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:25:10,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-09-21 11:25:10,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:10,854 INFO L225 Difference]: With dead ends: 3374 [2020-09-21 11:25:10,854 INFO L226 Difference]: Without dead ends: 1974 [2020-09-21 11:25:10,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:25:10,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2020-09-21 11:25:10,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1684. [2020-09-21 11:25:10,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1684 states. [2020-09-21 11:25:10,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 1988 transitions. [2020-09-21 11:25:10,911 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 1988 transitions. Word has length 194 [2020-09-21 11:25:10,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:10,911 INFO L479 AbstractCegarLoop]: Abstraction has 1684 states and 1988 transitions. [2020-09-21 11:25:10,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:10,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 1988 transitions. [2020-09-21 11:25:10,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-21 11:25:10,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:10,917 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:10,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:25:10,918 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:10,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:10,918 INFO L82 PathProgramCache]: Analyzing trace with hash -204380159, now seen corresponding path program 1 times [2020-09-21 11:25:10,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:10,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528971126] [2020-09-21 11:25:10,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:11,007 FATAL L256 erpolLogProxyWrapper]: Difference in size: 3 [2020-09-21 11:25:11,007 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -52 [2020-09-21 11:25:11,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 52 [2020-09-21 11:25:11,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:11,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-21 11:25:11,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:11,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:25:11,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:11,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:11,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-21 11:25:11,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:25:11,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:11,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:11,099 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:11,099 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:11,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:11,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:11,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:11,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:11,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:11,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:11,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:11,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:11,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:11,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:11,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:11,123 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:11,123 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:11,123 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:11,123 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:11,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:25:11,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:11,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:11,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:11,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:11,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:11,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:11,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:25:11,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:25:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:11,147 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:11,148 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:11,148 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:11,148 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:11,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-21 11:25:11,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:11,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:11,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:11,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:25:11,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:11,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-21 11:25:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:11,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:11,191 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:11,191 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:11,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:11,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:11,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:25:11,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:11,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:11,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:11,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:11,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:11,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:25:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:11,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:11,234 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:11,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:11,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:11,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:25:11,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:11,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:11,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:11,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:11,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:25:11,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:11,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:11,278 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 120 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-09-21 11:25:11,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528971126] [2020-09-21 11:25:11,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:11,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:11,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336426448] [2020-09-21 11:25:11,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:11,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:11,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:11,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:11,281 INFO L87 Difference]: Start difference. First operand 1684 states and 1988 transitions. Second operand 7 states. [2020-09-21 11:25:12,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:12,638 INFO L93 Difference]: Finished difference Result 3374 states and 3993 transitions. [2020-09-21 11:25:12,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:25:12,639 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-09-21 11:25:12,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:12,650 INFO L225 Difference]: With dead ends: 3374 [2020-09-21 11:25:12,651 INFO L226 Difference]: Without dead ends: 1696 [2020-09-21 11:25:12,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:25:12,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-09-21 11:25:12,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1686. [2020-09-21 11:25:12,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1686 states. [2020-09-21 11:25:12,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 1970 transitions. [2020-09-21 11:25:12,735 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 1970 transitions. Word has length 211 [2020-09-21 11:25:12,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:12,736 INFO L479 AbstractCegarLoop]: Abstraction has 1686 states and 1970 transitions. [2020-09-21 11:25:12,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:12,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 1970 transitions. [2020-09-21 11:25:12,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-21 11:25:12,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:12,746 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:12,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:25:12,747 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:12,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:12,748 INFO L82 PathProgramCache]: Analyzing trace with hash 2025089395, now seen corresponding path program 1 times [2020-09-21 11:25:12,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:12,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261598883] [2020-09-21 11:25:12,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:12,853 FATAL L256 erpolLogProxyWrapper]: Difference in size: 3 [2020-09-21 11:25:12,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -35 [2020-09-21 11:25:12,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 35 [2020-09-21 11:25:12,854 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:12,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-21 11:25:12,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:12,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:25:12,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:12,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:12,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-21 11:25:12,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:25:12,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:12,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:12,999 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:12,999 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:13,000 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:13,000 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:13,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:13,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:13,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:13,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:13,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:13,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:13,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:13,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:13,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:13,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:13,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:13,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:13,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:13,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-21 11:25:13,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:13,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:13,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:13,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:13,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:25:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:13,083 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:13,083 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:13,083 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:13,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:13,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-21 11:25:13,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:13,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:13,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:13,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:13,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-21 11:25:13,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:13,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 11:25:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:13,142 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:13,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:13,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:13,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:13,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:13,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:13,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:25:13,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:13,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:13,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:13,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:13,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:13,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:25:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:13,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:13,206 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:13,206 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:13,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:13,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:25:13,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:13,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:13,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:25:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:13,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:13,262 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 143 proven. 14 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-09-21 11:25:13,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261598883] [2020-09-21 11:25:13,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:13,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:13,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523043591] [2020-09-21 11:25:13,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:13,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:13,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:13,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:13,265 INFO L87 Difference]: Start difference. First operand 1686 states and 1970 transitions. Second operand 7 states. [2020-09-21 11:25:14,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:14,811 INFO L93 Difference]: Finished difference Result 3380 states and 3975 transitions. [2020-09-21 11:25:14,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:25:14,812 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-09-21 11:25:14,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:14,824 INFO L225 Difference]: With dead ends: 3380 [2020-09-21 11:25:14,824 INFO L226 Difference]: Without dead ends: 1700 [2020-09-21 11:25:14,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:25:14,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2020-09-21 11:25:14,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1686. [2020-09-21 11:25:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1686 states. [2020-09-21 11:25:14,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 1940 transitions. [2020-09-21 11:25:14,876 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 1940 transitions. Word has length 227 [2020-09-21 11:25:14,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:14,876 INFO L479 AbstractCegarLoop]: Abstraction has 1686 states and 1940 transitions. [2020-09-21 11:25:14,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:14,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 1940 transitions. [2020-09-21 11:25:14,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-09-21 11:25:14,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:14,884 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:14,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:25:14,884 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:14,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:14,885 INFO L82 PathProgramCache]: Analyzing trace with hash 87228715, now seen corresponding path program 1 times [2020-09-21 11:25:14,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:14,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2842830] [2020-09-21 11:25:14,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:14,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:25:14,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -121 [2020-09-21 11:25:14,993 FATAL L256 erpolLogProxyWrapper]: Difference in width: 121 [2020-09-21 11:25:14,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:14,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-09-21 11:25:14,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:14,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:25:14,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:14,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:14,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-09-21 11:25:14,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:25:14,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:15,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:15,118 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:15,119 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:15,119 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:15,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:15,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:15,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:15,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:15,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:15,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:15,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:15,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:15,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:15,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:15,144 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:15,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:15,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:15,145 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:15,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-21 11:25:15,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:15,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:15,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:15,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:15,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:15,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:15,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:15,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:25:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:15,188 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:15,188 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:15,188 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:15,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:15,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:15,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:15,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:15,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:15,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-21 11:25:15,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:15,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:25:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:15,247 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:15,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:15,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:15,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:15,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:15,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:15,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:25:15,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:15,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:15,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:15,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:15,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:15,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-21 11:25:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:15,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:15,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:15,292 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:15,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:15,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:25:15,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:15,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:15,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:25:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:15,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:15,355 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 183 proven. 14 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-09-21 11:25:15,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2842830] [2020-09-21 11:25:15,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:15,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:25:15,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868130981] [2020-09-21 11:25:15,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:15,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:15,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:15,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:15,358 INFO L87 Difference]: Start difference. First operand 1686 states and 1940 transitions. Second operand 8 states. [2020-09-21 11:25:17,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:17,296 INFO L93 Difference]: Finished difference Result 3640 states and 4188 transitions. [2020-09-21 11:25:17,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:25:17,297 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 267 [2020-09-21 11:25:17,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:17,306 INFO L225 Difference]: With dead ends: 3640 [2020-09-21 11:25:17,306 INFO L226 Difference]: Without dead ends: 1960 [2020-09-21 11:25:17,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:25:17,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2020-09-21 11:25:17,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1823. [2020-09-21 11:25:17,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1823 states. [2020-09-21 11:25:17,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 2087 transitions. [2020-09-21 11:25:17,360 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 2087 transitions. Word has length 267 [2020-09-21 11:25:17,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:17,360 INFO L479 AbstractCegarLoop]: Abstraction has 1823 states and 2087 transitions. [2020-09-21 11:25:17,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:17,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 2087 transitions. [2020-09-21 11:25:17,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-21 11:25:17,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:17,368 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:17,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:25:17,369 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:17,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:17,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1941606106, now seen corresponding path program 1 times [2020-09-21 11:25:17,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:17,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723817505] [2020-09-21 11:25:17,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:17,471 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:17,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:17,472 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:17,472 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:17,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-09-21 11:25:17,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:17,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:25:17,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:17,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:17,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-21 11:25:17,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-21 11:25:17,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:17,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:17,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:17,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:17,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:17,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:17,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:17,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:17,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:17,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:17,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:17,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:17,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:17,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:17,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:17,665 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:17,665 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:17,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:17,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:17,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-21 11:25:17,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:17,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:17,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:17,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:17,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:17,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:17,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:17,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:25:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:17,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:17,700 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:17,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:17,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:17,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:17,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:17,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:25:17,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:17,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:17,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:17,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:17,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:17,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:25:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:17,721 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:17,721 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:17,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:17,721 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:17,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:17,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:17,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:17,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:17,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:17,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:17,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:17,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:17,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:25:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:17,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:17,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:17,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:17,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:17,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:17,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:17,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:17,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:17,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:17,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-21 11:25:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:17,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:17,750 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:17,750 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:17,750 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:17,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:25:17,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:17,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:25:17,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 11:25:17,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-09-21 11:25:17,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723817505] [2020-09-21 11:25:17,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:17,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:17,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535682881] [2020-09-21 11:25:17,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:17,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:17,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:17,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:17,835 INFO L87 Difference]: Start difference. First operand 1823 states and 2087 transitions. Second operand 5 states. [2020-09-21 11:25:18,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:18,944 INFO L93 Difference]: Finished difference Result 4049 states and 4607 transitions. [2020-09-21 11:25:18,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:18,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-09-21 11:25:18,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:18,960 INFO L225 Difference]: With dead ends: 4049 [2020-09-21 11:25:18,960 INFO L226 Difference]: Without dead ends: 1819 [2020-09-21 11:25:18,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:18,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2020-09-21 11:25:19,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1676. [2020-09-21 11:25:19,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1676 states. [2020-09-21 11:25:19,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 1825 transitions. [2020-09-21 11:25:19,009 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 1825 transitions. Word has length 280 [2020-09-21 11:25:19,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:19,010 INFO L479 AbstractCegarLoop]: Abstraction has 1676 states and 1825 transitions. [2020-09-21 11:25:19,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:19,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 1825 transitions. [2020-09-21 11:25:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-09-21 11:25:19,017 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:19,018 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:19,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 11:25:19,018 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:19,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:19,019 INFO L82 PathProgramCache]: Analyzing trace with hash 134509227, now seen corresponding path program 1 times [2020-09-21 11:25:19,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:19,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341110850] [2020-09-21 11:25:19,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:19,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 6 [2020-09-21 11:25:19,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -211 [2020-09-21 11:25:19,151 FATAL L256 erpolLogProxyWrapper]: Difference in width: 211 [2020-09-21 11:25:19,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-09-21 11:25:19,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 11:25:19,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:19,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 217 [2020-09-21 11:25:19,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-21 11:25:19,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:19,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:19,317 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:19,317 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:19,318 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:19,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:19,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:19,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:19,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:19,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:19,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:19,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:19,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:19,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-21 11:25:19,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:19,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:19,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:19,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:19,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:19,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:25:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:19,381 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:19,381 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:19,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:19,382 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:19,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:19,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:19,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:19,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:25:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:19,406 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:19,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:19,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:19,407 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:19,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:25:19,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:19,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:19,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:19,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:19,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:25:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:19,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:19,418 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:19,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:19,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:19,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:19,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:19,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:19,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-21 11:25:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:19,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:19,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:19,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:19,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:25:19,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:19,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:19,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:19,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-09-21 11:25:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:19,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:19,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:19,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:19,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 11:25:19,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:19,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:25:19,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:19,541 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-09-21 11:25:19,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341110850] [2020-09-21 11:25:19,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:19,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:19,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214103989] [2020-09-21 11:25:19,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:19,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:19,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:19,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:19,545 INFO L87 Difference]: Start difference. First operand 1676 states and 1825 transitions. Second operand 5 states. [2020-09-21 11:25:20,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:20,596 INFO L93 Difference]: Finished difference Result 3352 states and 3672 transitions. [2020-09-21 11:25:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:20,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 305 [2020-09-21 11:25:20,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:20,598 INFO L225 Difference]: With dead ends: 3352 [2020-09-21 11:25:20,598 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:25:20,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:20,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:25:20,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:25:20,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:25:20,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:25:20,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2020-09-21 11:25:20,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:20,605 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:25:20,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:20,605 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:25:20,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:25:20,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-21 11:25:20,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:25:21,056 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-09-21 11:25:21,647 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-09-21 11:25:21,911 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-09-21 11:25:22,550 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 140 [2020-09-21 11:25:23,092 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 140 [2020-09-21 11:25:23,226 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 34 [2020-09-21 11:25:24,102 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 67 [2020-09-21 11:25:24,645 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 51 [2020-09-21 11:25:25,160 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 51 [2020-09-21 11:25:25,166 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:25:25,167 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-09-21 11:25:25,167 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:25:25,167 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-09-21 11:25:25,167 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-09-21 11:25:25,167 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,168 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,171 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,171 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,171 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,171 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,171 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-09-21 11:25:25,172 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-09-21 11:25:25,172 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-09-21 11:25:25,172 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-09-21 11:25:25,172 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-09-21 11:25:25,172 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-09-21 11:25:25,172 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-09-21 11:25:25,172 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-09-21 11:25:25,172 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-09-21 11:25:25,173 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-09-21 11:25:25,174 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,174 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,174 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,174 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,175 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,175 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,175 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-09-21 11:25:25,175 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-09-21 11:25:25,175 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-21 11:25:25,175 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-09-21 11:25:25,175 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-09-21 11:25:25,175 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-09-21 11:25:25,175 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-09-21 11:25:25,176 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-09-21 11:25:25,177 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-09-21 11:25:25,177 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-09-21 11:25:25,177 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-09-21 11:25:25,178 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 485) no Hoare annotation was computed. [2020-09-21 11:25:25,178 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-09-21 11:25:25,178 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-09-21 11:25:25,178 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-09-21 11:25:25,178 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-09-21 11:25:25,178 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,178 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,178 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,179 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,180 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,180 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-09-21 11:25:25,180 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-09-21 11:25:25,180 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-09-21 11:25:25,180 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-09-21 11:25:25,180 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-09-21 11:25:25,180 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-09-21 11:25:25,180 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-09-21 11:25:25,181 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-09-21 11:25:25,181 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-09-21 11:25:25,181 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,181 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,181 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,183 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,184 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,184 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-09-21 11:25:25,184 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-09-21 11:25:25,184 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-09-21 11:25:25,184 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-09-21 11:25:25,184 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-09-21 11:25:25,184 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-09-21 11:25:25,184 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-09-21 11:25:25,185 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-09-21 11:25:25,185 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-09-21 11:25:25,185 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-09-21 11:25:25,185 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-09-21 11:25:25,185 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-09-21 11:25:25,185 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-09-21 11:25:25,185 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,185 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,185 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,186 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,188 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,188 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-09-21 11:25:25,188 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-09-21 11:25:25,188 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-09-21 11:25:25,188 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-09-21 11:25:25,188 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-09-21 11:25:25,189 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-09-21 11:25:25,189 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-09-21 11:25:25,189 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-09-21 11:25:25,189 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-09-21 11:25:25,189 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,189 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,189 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,189 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,190 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,190 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,190 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-09-21 11:25:25,190 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,190 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-09-21 11:25:25,190 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-09-21 11:25:25,190 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-09-21 11:25:25,190 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-09-21 11:25:25,190 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-09-21 11:25:25,191 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-09-21 11:25:25,191 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-09-21 11:25:25,191 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-09-21 11:25:25,191 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-09-21 11:25:25,191 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-09-21 11:25:25,191 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-09-21 11:25:25,191 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-09-21 11:25:25,191 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-09-21 11:25:25,192 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,192 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,192 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,192 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,192 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,192 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-09-21 11:25:25,192 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-09-21 11:25:25,193 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-09-21 11:25:25,193 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-09-21 11:25:25,193 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-09-21 11:25:25,193 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-09-21 11:25:25,193 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-09-21 11:25:25,193 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-09-21 11:25:25,193 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,194 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,194 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,194 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,194 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,194 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-09-21 11:25:25,194 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-09-21 11:25:25,194 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-09-21 11:25:25,194 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-09-21 11:25:25,194 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-09-21 11:25:25,195 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-09-21 11:25:25,195 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-09-21 11:25:25,195 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-09-21 11:25:25,195 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-09-21 11:25:25,195 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-09-21 11:25:25,195 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse9 (= ~a16~0 |old(~a16~0)|)) (.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse6 (= ~a7~0 |old(~a7~0)|)) (.cse7 (= ~a21~0 |old(~a21~0)|)) (.cse8 (= ~a20~0 |old(~a20~0)|)) (.cse15 (= ~a8~0 |old(~a8~0)|))) (let ((.cse11 (not (<= 5 |old(~a16~0)|))) (.cse1 (not (= |old(~a20~0)| 1))) (.cse2 (not (= |old(~a21~0)| 1))) (.cse0 (and .cse5 .cse6 .cse7 .cse8 .cse15 (= ~a16~0 4))) (.cse3 (not (= 4 |old(~a16~0)|))) (.cse4 (= |old(~a7~0)| 1)) (.cse10 (not (<= |old(~a16~0)| 5))) (.cse14 (not (<= 15 |old(~a8~0)|))) (.cse13 (and .cse5 .cse6 .cse7 .cse8 .cse9 .cse15)) (.cse12 (not (= 0 |old(~a20~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 .cse6 .cse7 .cse8 (= 14 ~a8~0) .cse9) (not (= 14 |old(~a8~0)|)) .cse10) (or .cse11 .cse12 .cse13 .cse4) (or (not (= |old(~a8~0)| 13)) (and .cse5 .cse6 .cse7 .cse8 .cse9 (= ~a8~0 13))) (or .cse13 (and (or .cse11 .cse10 .cse14 .cse1 .cse2) (or .cse11 .cse1 .cse2 .cse4))) (or .cse0 .cse12 .cse3 .cse4) (or .cse10 .cse14 .cse13 .cse12)))) [2020-09-21 11:25:25,196 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-09-21 11:25:25,196 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,196 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,196 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,196 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,196 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-09-21 11:25:25,196 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,196 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,196 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-09-21 11:25:25,197 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-09-21 11:25:25,197 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-09-21 11:25:25,197 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-09-21 11:25:25,197 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-09-21 11:25:25,197 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-09-21 11:25:25,197 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-09-21 11:25:25,197 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-09-21 11:25:25,197 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-09-21 11:25:25,197 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-09-21 11:25:25,197 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-09-21 11:25:25,198 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-09-21 11:25:25,198 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,198 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,198 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,198 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,198 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,198 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-09-21 11:25:25,198 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,199 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-09-21 11:25:25,199 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-09-21 11:25:25,199 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-09-21 11:25:25,199 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-09-21 11:25:25,199 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-09-21 11:25:25,199 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-09-21 11:25:25,199 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-09-21 11:25:25,199 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-09-21 11:25:25,199 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-09-21 11:25:25,200 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-09-21 11:25:25,200 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-09-21 11:25:25,200 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-09-21 11:25:25,200 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-09-21 11:25:25,200 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-09-21 11:25:25,200 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,200 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,200 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,200 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,201 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,201 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:25,201 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-09-21 11:25:25,201 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-09-21 11:25:25,201 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-09-21 11:25:25,201 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-09-21 11:25:25,201 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-09-21 11:25:25,201 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-09-21 11:25:25,201 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-09-21 11:25:25,202 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-09-21 11:25:25,202 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-09-21 11:25:25,202 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-09-21 11:25:25,202 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:25:25,202 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a20~0 1) (not (= ~a7~0 1)) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-09-21 11:25:25,202 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:25:25,202 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:25:25,202 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (= |old(~a7~0)| 1)) [2020-09-21 11:25:25,203 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-09-21 11:25:25,203 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= ~a20~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse1 (= ~a16~0 4)) (.cse4 (<= ~a16~0 5)) (.cse6 (= ~a21~0 1)) (.cse7 (= ~a20~0 1)) (.cse3 (<= 5 ~a16~0)) (.cse2 (not (= ~a7~0 1)))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (not (= |old(~a20~0)| 1)) (and .cse0 .cse4 .cse5) (not (= |old(~a21~0)| 1)) (= |old(~a7~0)| 1) (not (= |old(~a17~0)| 1)) (and .cse6 .cse4 .cse7 .cse3 .cse5) (not (<= 15 |old(~a8~0)|)) (and .cse6 .cse7 .cse1 .cse2) (and (= 14 ~a8~0) .cse4) (= ~a8~0 13) (not (= 5 |old(~a16~0)|)) (and .cse6 .cse7 .cse3 .cse2))) [2020-09-21 11:25:25,203 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-09-21 11:25:25,203 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-21 11:25:25,203 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a20~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse1 (= ~a16~0 4)) (.cse4 (<= ~a16~0 5)) (.cse6 (= ~a21~0 1)) (.cse7 (= ~a20~0 1)) (.cse3 (<= 5 ~a16~0)) (.cse2 (not (= ~a7~0 1)))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (not (= |old(~a20~0)| 1)) (and .cse0 .cse4 .cse5) (not (= |old(~a21~0)| 1)) (= |old(~a7~0)| 1) (not (= |old(~a17~0)| 1)) (and .cse6 .cse4 .cse7 .cse3 .cse5) (not (<= 15 |old(~a8~0)|)) (and .cse6 .cse7 .cse1 .cse2) (and (= 14 ~a8~0) .cse4) (= ~a8~0 13) (not (= 5 |old(~a16~0)|)) (and .cse6 .cse7 .cse3 .cse2))) [2020-09-21 11:25:25,203 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-09-21 11:25:25,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:25:25 BoogieIcfgContainer [2020-09-21 11:25:25,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:25:25,251 INFO L168 Benchmark]: Toolchain (without parser) took 34918.95 ms. Allocated memory was 141.0 MB in the beginning and 645.4 MB in the end (delta: 504.4 MB). Free memory was 102.5 MB in the beginning and 557.2 MB in the end (delta: -454.7 MB). Peak memory consumption was 517.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:25,252 INFO L168 Benchmark]: CDTParser took 0.93 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:25:25,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.60 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 170.0 MB in the end (delta: -68.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:25,253 INFO L168 Benchmark]: Boogie Preprocessor took 113.03 ms. Allocated memory is still 204.5 MB. Free memory was 170.0 MB in the beginning and 165.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:25,254 INFO L168 Benchmark]: RCFGBuilder took 1290.36 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 165.2 MB in the beginning and 173.5 MB in the end (delta: -8.3 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:25,255 INFO L168 Benchmark]: TraceAbstraction took 32746.46 ms. Allocated memory was 237.0 MB in the beginning and 645.4 MB in the end (delta: 408.4 MB). Free memory was 172.1 MB in the beginning and 557.2 MB in the end (delta: -385.0 MB). Peak memory consumption was 490.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:25,258 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 758.60 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 170.0 MB in the end (delta: -68.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.03 ms. Allocated memory is still 204.5 MB. Free memory was 170.0 MB in the beginning and 165.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1290.36 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 165.2 MB in the beginning and 173.5 MB in the end (delta: -8.3 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32746.46 ms. Allocated memory was 237.0 MB in the beginning and 645.4 MB in the end (delta: 408.4 MB). Free memory was 172.1 MB in the beginning and 557.2 MB in the end (delta: -385.0 MB). Peak memory consumption was 490.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 485]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((a20 == 0 && a16 == 4) && !(a7 == 1)) || ((a20 == 0 && 5 <= a16) && !(a7 == 1))) || !(\old(a20) == 1)) || ((a20 == 0 && a16 <= 5) && 15 <= a8)) || !(\old(a21) == 1)) || \old(a7) == 1) || !(\old(a17) == 1)) || ((((a21 == 1 && a16 <= 5) && a20 == 1) && 5 <= a16) && 15 <= a8)) || !(15 <= \old(a8))) || (((a21 == 1 && a20 == 1) && a16 == 4) && !(a7 == 1))) || (14 == a8 && a16 <= 5)) || a8 == 13) || !(5 == \old(a16))) || (((a21 == 1 && a20 == 1) && 5 <= a16) && !(a7 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.0s, OverallIterations: 15, TraceHistogramMax: 7, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 409 SDtfs, 5480 SDslu, 508 SDs, 0 SdLazy, 10040 SolverSat, 1246 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 132 SyntacticMatches, 6 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1823occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 1232 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 133 PreInvPairs, 173 NumberOfFragments, 582 HoareAnnotationTreeSize, 133 FomulaSimplifications, 770771 FormulaSimplificationTreeSizeReduction, 2.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10017 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 2632 NumberOfCodeBlocks, 2632 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2617 ConstructedInterpolants, 0 QuantifiedInterpolants, 1670039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 3 PerfectInterpolantSequences, 1791/1866 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...