/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:11:29,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:11:29,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:11:29,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:11:29,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:11:29,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:11:29,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:11:29,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:11:29,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:11:29,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:11:29,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:11:29,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:11:29,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:11:29,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:11:29,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:11:29,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:11:29,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:11:29,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:11:29,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:11:29,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:11:29,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:11:29,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:11:29,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:11:29,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:11:29,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:11:29,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:11:29,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:11:29,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:11:29,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:11:29,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:11:29,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:11:29,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:11:29,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:11:29,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:11:29,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:11:29,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:11:29,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:11:29,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:11:29,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:11:29,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:11:29,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:11:29,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 11:11:29,816 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:11:29,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:11:29,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:11:29,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:11:29,818 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:11:29,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:11:29,819 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:11:29,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:11:29,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:11:29,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:11:29,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:11:29,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:11:29,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:11:29,821 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:11:29,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:11:29,822 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:11:29,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:11:29,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:11:29,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:11:29,823 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:11:29,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:11:29,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:11:29,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:11:29,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:11:29,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:11:29,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:11:29,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:11:29,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:11:29,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:11:29,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 11:11:30,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:11:30,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:11:30,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:11:30,150 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:11:30,150 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:11:30,151 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-10-12 11:11:30,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e652a280/1fe10ef4be4e413aafe0f157d0788b17/FLAGdeb0ca405 [2020-10-12 11:11:30,820 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:11:30,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-10-12 11:11:30,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e652a280/1fe10ef4be4e413aafe0f157d0788b17/FLAGdeb0ca405 [2020-10-12 11:11:31,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e652a280/1fe10ef4be4e413aafe0f157d0788b17 [2020-10-12 11:11:31,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:11:31,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:11:31,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:11:31,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:11:31,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:11:31,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:11:31" (1/1) ... [2020-10-12 11:11:31,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f78b0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:31, skipping insertion in model container [2020-10-12 11:11:31,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:11:31" (1/1) ... [2020-10-12 11:11:31,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:11:31,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:11:31,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:11:31,657 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:11:31,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:11:31,889 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:11:31,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:31 WrapperNode [2020-10-12 11:11:31,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:11:31,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:11:31,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:11:31,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:11:31,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:31" (1/1) ... [2020-10-12 11:11:31,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:31" (1/1) ... [2020-10-12 11:11:31,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:31" (1/1) ... [2020-10-12 11:11:31,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:31" (1/1) ... [2020-10-12 11:11:31,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:31" (1/1) ... [2020-10-12 11:11:31,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:31" (1/1) ... [2020-10-12 11:11:32,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:31" (1/1) ... [2020-10-12 11:11:32,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:11:32,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:11:32,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:11:32,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:11:32,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:11:32,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:11:32,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:11:32,103 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:11:32,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:11:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:11:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:11:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:11:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:11:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:11:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:11:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:11:33,359 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:11:33,360 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:11:33,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:11:33 BoogieIcfgContainer [2020-10-12 11:11:33,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:11:33,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:11:33,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:11:33,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:11:33,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:11:31" (1/3) ... [2020-10-12 11:11:33,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e3f04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:11:33, skipping insertion in model container [2020-10-12 11:11:33,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:31" (2/3) ... [2020-10-12 11:11:33,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e3f04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:11:33, skipping insertion in model container [2020-10-12 11:11:33,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:11:33" (3/3) ... [2020-10-12 11:11:33,376 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label03.c [2020-10-12 11:11:33,387 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:11:33,396 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:11:33,411 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:11:33,439 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:11:33,440 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:11:33,440 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:11:33,440 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:11:33,440 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:11:33,440 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:11:33,441 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:11:33,441 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:11:33,465 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-12 11:11:33,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-12 11:11:33,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:33,483 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:11:33,484 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:33,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1255491721, now seen corresponding path program 1 times [2020-10-12 11:11:33,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:33,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586829050] [2020-10-12 11:11:33,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:33,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:35,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:35,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 11:11:35,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:35,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1516 [2020-10-12 11:11:35,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:35,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 11:11:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:11:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 11:11:35,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:11:35,906 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-10-12 11:11:36,035 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2020-10-12 11:11:36,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:36,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:36,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:36,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:36,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:36,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:11:36,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:11:36,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:36,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:11:36,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586829050] [2020-10-12 11:11:36,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:11:36,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 11:11:36,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513568134] [2020-10-12 11:11:36,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:11:36,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:36,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:11:36,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:11:36,581 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 13 states. [2020-10-12 11:11:36,952 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-12 11:11:37,133 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-12 11:11:37,379 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-10-12 11:11:37,623 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-12 11:11:37,859 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-12 11:11:38,454 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:11:38,892 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2020-10-12 11:11:39,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:39,948 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-12 11:11:39,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:11:39,952 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 135 [2020-10-12 11:11:39,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:39,966 INFO L225 Difference]: With dead ends: 536 [2020-10-12 11:11:39,967 INFO L226 Difference]: Without dead ends: 236 [2020-10-12 11:11:39,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:11:39,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-12 11:11:40,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-12 11:11:40,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-12 11:11:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-12 11:11:40,039 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 135 [2020-10-12 11:11:40,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:40,040 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-12 11:11:40,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:11:40,040 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-12 11:11:40,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-12 11:11:40,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:40,045 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:11:40,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:11:40,046 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:40,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:40,046 INFO L82 PathProgramCache]: Analyzing trace with hash 603998840, now seen corresponding path program 1 times [2020-10-12 11:11:40,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:40,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611090852] [2020-10-12 11:11:40,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:40,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:40,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:40,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:41,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:41,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-12 11:11:41,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:11:41,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1693 [2020-10-12 11:11:41,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:41,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:11:41,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 11:11:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:11:41,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 11:11:42,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:42,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:42,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:42,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:42,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:42,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:11:42,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:42,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:42,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:42,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:42,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:42,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:11:42,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:42,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:11:42,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:42,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:11:42,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:11:42,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611090852] [2020-10-12 11:11:42,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:42,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:11:42,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427305741] [2020-10-12 11:11:42,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:11:42,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:42,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:11:42,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:11:42,988 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-12 11:11:43,504 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2020-10-12 11:11:44,115 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2020-10-12 11:11:44,433 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2020-10-12 11:11:44,869 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-12 11:11:45,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:45,356 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-12 11:11:45,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 11:11:45,360 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 144 [2020-10-12 11:11:45,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:45,363 INFO L225 Difference]: With dead ends: 549 [2020-10-12 11:11:45,363 INFO L226 Difference]: Without dead ends: 236 [2020-10-12 11:11:45,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:11:45,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-12 11:11:45,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-12 11:11:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-12 11:11:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-12 11:11:45,385 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 144 [2020-10-12 11:11:45,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:45,385 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-12 11:11:45,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:11:45,385 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-12 11:11:45,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-12 11:11:45,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:45,389 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:11:45,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:11:45,390 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:45,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:45,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1386528000, now seen corresponding path program 1 times [2020-10-12 11:11:45,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:45,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656439755] [2020-10-12 11:11:45,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:45,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:46,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:46,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 11:11:46,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:11:46,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1502 [2020-10-12 11:11:46,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:46,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:11:46,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 11:11:46,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 11:11:46,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:47,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:47,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:47,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:47,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:47,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:47,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:11:47,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:47,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:47,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:47,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:47,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:47,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:11:47,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:47,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:11:47,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:47,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:47,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:47,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 11:11:47,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:47,681 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:11:47,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656439755] [2020-10-12 11:11:47,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:47,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:11:47,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973680833] [2020-10-12 11:11:47,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:11:47,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:47,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:11:47,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:11:47,685 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-12 11:11:49,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:49,391 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-12 11:11:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:11:49,392 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 148 [2020-10-12 11:11:49,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:49,395 INFO L225 Difference]: With dead ends: 554 [2020-10-12 11:11:49,396 INFO L226 Difference]: Without dead ends: 327 [2020-10-12 11:11:49,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-12 11:11:49,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-12 11:11:49,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-12 11:11:49,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-12 11:11:49,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-12 11:11:49,421 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 148 [2020-10-12 11:11:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:49,421 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-12 11:11:49,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:11:49,422 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-12 11:11:49,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-12 11:11:49,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:49,425 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:11:49,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:11:49,426 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:49,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:49,426 INFO L82 PathProgramCache]: Analyzing trace with hash 931972008, now seen corresponding path program 1 times [2020-10-12 11:11:49,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:49,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054403987] [2020-10-12 11:11:49,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:49,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:49,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:49,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:49,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-12 11:11:49,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:49,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-12 11:11:49,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:49,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 11:11:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 11:11:49,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:50,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:50,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:50,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:50,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:50,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:50,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:11:50,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:50,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:50,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:50,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:50,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:50,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:50,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:11:50,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:50,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:11:50,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:50,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:50,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:50,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:50,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:50,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:11:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:50,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:50,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:50,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 11:11:50,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:50,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 11:11:50,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:50,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:50,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:50,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 11:11:50,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:50,283 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 11:11:50,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054403987] [2020-10-12 11:11:50,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:50,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:11:50,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950457127] [2020-10-12 11:11:50,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:11:50,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:50,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:11:50,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:11:50,288 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-12 11:11:51,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:51,315 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-12 11:11:51,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:11:51,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-10-12 11:11:51,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:51,320 INFO L225 Difference]: With dead ends: 724 [2020-10-12 11:11:51,320 INFO L226 Difference]: Without dead ends: 323 [2020-10-12 11:11:51,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:11:51,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-12 11:11:51,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-12 11:11:51,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-12 11:11:51,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-12 11:11:51,362 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 170 [2020-10-12 11:11:51,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:51,362 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-12 11:11:51,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:11:51,363 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-12 11:11:51,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-12 11:11:51,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:51,367 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, 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, 1, 1, 1, 1] [2020-10-12 11:11:51,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:11:51,368 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:51,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:51,369 INFO L82 PathProgramCache]: Analyzing trace with hash -410993143, now seen corresponding path program 1 times [2020-10-12 11:11:51,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:51,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560959955] [2020-10-12 11:11:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:51,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:51,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:51,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:52,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:52,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 11:11:52,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:11:52,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1353 [2020-10-12 11:11:52,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:52,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:11:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-12 11:11:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 11:11:52,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:53,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:53,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:53,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:53,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:53,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:53,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:11:53,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:53,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:53,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:53,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:53,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:53,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:53,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:53,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:53,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:11:53,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 11:11:53,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:53,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 11:11:53,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:53,661 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:11:53,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560959955] [2020-10-12 11:11:53,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:53,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:11:53,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138335286] [2020-10-12 11:11:53,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:11:53,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:53,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:11:53,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:11:53,665 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-12 11:11:54,133 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-12 11:11:54,269 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-12 11:11:54,496 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-12 11:11:55,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:55,704 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-12 11:11:55,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 11:11:55,705 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 169 [2020-10-12 11:11:55,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:55,709 INFO L225 Difference]: With dead ends: 723 [2020-10-12 11:11:55,709 INFO L226 Difference]: Without dead ends: 401 [2020-10-12 11:11:55,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-12 11:11:55,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-12 11:11:55,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-12 11:11:55,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-12 11:11:55,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-12 11:11:55,726 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 169 [2020-10-12 11:11:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:55,727 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-12 11:11:55,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:11:55,727 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-12 11:11:55,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-12 11:11:55,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:55,730 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1] [2020-10-12 11:11:55,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:11:55,730 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:55,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:55,731 INFO L82 PathProgramCache]: Analyzing trace with hash -776139634, now seen corresponding path program 1 times [2020-10-12 11:11:55,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:55,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008663396] [2020-10-12 11:11:55,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:55,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:55,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:55,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:56,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:57,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:57,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 11:11:57,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:11:57,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2038 [2020-10-12 11:11:57,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 11:11:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:11:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-12 11:11:57,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:57,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:57,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:57,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:57,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:57,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:57,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:11:57,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:11:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:57,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:57,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:57,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:57,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:57,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:11:57,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:57,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 11:11:57,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 11:11:57,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:58,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 11:11:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:58,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:58,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:58,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:58,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:11:58,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:11:58,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:58,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 11:11:58,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-12 11:11:58,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008663396] [2020-10-12 11:11:58,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:58,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:11:58,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620464125] [2020-10-12 11:11:58,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:11:58,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:58,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:11:58,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:11:58,151 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 7 states. [2020-10-12 11:11:59,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:59,232 INFO L93 Difference]: Finished difference Result 936 states and 1173 transitions. [2020-10-12 11:11:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 11:11:59,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 177 [2020-10-12 11:11:59,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:59,236 INFO L225 Difference]: With dead ends: 936 [2020-10-12 11:11:59,236 INFO L226 Difference]: Without dead ends: 548 [2020-10-12 11:11:59,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:11:59,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-10-12 11:11:59,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 541. [2020-10-12 11:11:59,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-10-12 11:11:59,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 673 transitions. [2020-10-12 11:11:59,266 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 673 transitions. Word has length 177 [2020-10-12 11:11:59,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:59,267 INFO L479 AbstractCegarLoop]: Abstraction has 541 states and 673 transitions. [2020-10-12 11:11:59,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:11:59,267 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 673 transitions. [2020-10-12 11:11:59,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-12 11:11:59,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:59,271 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1] [2020-10-12 11:11:59,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:11:59,271 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:59,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:59,271 INFO L82 PathProgramCache]: Analyzing trace with hash -548489026, now seen corresponding path program 1 times [2020-10-12 11:11:59,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:59,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817851875] [2020-10-12 11:11:59,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:59,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:59,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:59,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:59,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:01,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:02,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:02,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-12 11:12:02,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:12:02,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2977 [2020-10-12 11:12:02,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:02,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 11:12:02,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:12:02,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 11:12:02,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:02,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:02,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:02,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:02,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:02,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:02,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:12:02,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:02,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:02,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:02,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:12:02,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:02,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:02,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:02,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:02,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:02,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:12:02,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:12:02,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 11:12:02,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:12:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 11:12:02,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:02,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 11:12:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:02,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:02,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:02,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:02,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:12:02,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:12:02,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:12:02,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:02,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:12:02,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 11:12:02,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:02,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 11:12:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:02,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:02,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:02,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 11:12:02,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:02,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 11:12:02,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:02,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:02,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:12:02,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 11:12:02,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:02,663 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 64 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-12 11:12:02,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817851875] [2020-10-12 11:12:02,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:02,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:12:02,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701681724] [2020-10-12 11:12:02,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:12:02,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:02,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:12:02,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:12:02,666 INFO L87 Difference]: Start difference. First operand 541 states and 673 transitions. Second operand 8 states. [2020-10-12 11:12:04,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:04,025 INFO L93 Difference]: Finished difference Result 1410 states and 1860 transitions. [2020-10-12 11:12:04,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:12:04,027 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 203 [2020-10-12 11:12:04,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:04,035 INFO L225 Difference]: With dead ends: 1410 [2020-10-12 11:12:04,035 INFO L226 Difference]: Without dead ends: 875 [2020-10-12 11:12:04,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:12:04,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2020-10-12 11:12:04,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 848. [2020-10-12 11:12:04,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2020-10-12 11:12:04,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1065 transitions. [2020-10-12 11:12:04,096 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1065 transitions. Word has length 203 [2020-10-12 11:12:04,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:04,097 INFO L479 AbstractCegarLoop]: Abstraction has 848 states and 1065 transitions. [2020-10-12 11:12:04,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:12:04,097 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1065 transitions. [2020-10-12 11:12:04,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-12 11:12:04,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:04,104 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:12:04,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:12:04,104 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:04,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:04,105 INFO L82 PathProgramCache]: Analyzing trace with hash 841141806, now seen corresponding path program 1 times [2020-10-12 11:12:04,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:04,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090201251] [2020-10-12 11:12:04,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:04,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:04,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:04,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:05,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:05,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 11:12:05,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:12:05,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1043 [2020-10-12 11:12:05,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:05,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-12 11:12:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-12 11:12:05,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:05,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:05,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:05,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:05,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:05,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:05,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:12:05,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:05,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:05,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:05,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:12:05,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:05,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:05,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:05,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:12:05,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:05,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:12:05,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:05,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:05,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:05,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:05,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:12:05,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 11:12:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:05,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:05,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:05,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:12:05,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:05,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:12:05,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:05,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:05,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 11:12:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:05,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:05,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:05,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 11:12:05,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:05,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 11:12:05,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 11:12:05,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:05,529 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 71 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-12 11:12:05,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090201251] [2020-10-12 11:12:05,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:05,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:12:05,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402789636] [2020-10-12 11:12:05,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:12:05,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:05,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:12:05,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:12:05,533 INFO L87 Difference]: Start difference. First operand 848 states and 1065 transitions. Second operand 6 states. [2020-10-12 11:12:07,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:07,181 INFO L93 Difference]: Finished difference Result 2442 states and 3173 transitions. [2020-10-12 11:12:07,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:12:07,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 212 [2020-10-12 11:12:07,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:07,193 INFO L225 Difference]: With dead ends: 2442 [2020-10-12 11:12:07,193 INFO L226 Difference]: Without dead ends: 1600 [2020-10-12 11:12:07,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:12:07,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2020-10-12 11:12:07,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1592. [2020-10-12 11:12:07,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1592 states. [2020-10-12 11:12:07,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 1948 transitions. [2020-10-12 11:12:07,242 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 1948 transitions. Word has length 212 [2020-10-12 11:12:07,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:07,243 INFO L479 AbstractCegarLoop]: Abstraction has 1592 states and 1948 transitions. [2020-10-12 11:12:07,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:12:07,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 1948 transitions. [2020-10-12 11:12:07,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-12 11:12:07,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:07,250 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 11:12:07,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:12:07,251 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:07,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:07,251 INFO L82 PathProgramCache]: Analyzing trace with hash 259892337, now seen corresponding path program 1 times [2020-10-12 11:12:07,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:07,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509406893] [2020-10-12 11:12:07,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:07,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:07,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:07,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:07,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-12 11:12:07,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:12:07,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-12 11:12:07,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:07,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:07,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-12 11:12:07,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 11:12:07,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:07,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:07,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:07,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:07,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:07,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:07,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:12:07,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:07,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:07,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:07,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:07,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:07,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:07,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:07,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:07,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:12:07,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:07,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:12:07,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:07,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:07,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:07,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:07,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:07,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 11:12:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:07,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:08,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:08,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 11:12:08,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:08,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 11:12:08,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 11:12:08,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:08,134 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-12 11:12:08,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509406893] [2020-10-12 11:12:08,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:08,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:12:08,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956891605] [2020-10-12 11:12:08,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:12:08,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:08,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:12:08,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:12:08,136 INFO L87 Difference]: Start difference. First operand 1592 states and 1948 transitions. Second operand 6 states. [2020-10-12 11:12:09,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:09,540 INFO L93 Difference]: Finished difference Result 3357 states and 4255 transitions. [2020-10-12 11:12:09,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:12:09,543 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 241 [2020-10-12 11:12:09,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:09,552 INFO L225 Difference]: With dead ends: 3357 [2020-10-12 11:12:09,552 INFO L226 Difference]: Without dead ends: 1567 [2020-10-12 11:12:09,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:12:09,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2020-10-12 11:12:09,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1562. [2020-10-12 11:12:09,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1562 states. [2020-10-12 11:12:09,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 1903 transitions. [2020-10-12 11:12:09,605 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 1903 transitions. Word has length 241 [2020-10-12 11:12:09,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:09,605 INFO L479 AbstractCegarLoop]: Abstraction has 1562 states and 1903 transitions. [2020-10-12 11:12:09,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:12:09,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 1903 transitions. [2020-10-12 11:12:09,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-12 11:12:09,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:09,612 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:12:09,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:12:09,612 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:09,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:09,613 INFO L82 PathProgramCache]: Analyzing trace with hash -342464788, now seen corresponding path program 1 times [2020-10-12 11:12:09,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:09,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577121931] [2020-10-12 11:12:09,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:09,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:09,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:09,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:09,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:09,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:10,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:11,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:12,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:14,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-12 11:12:14,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:12:14,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 11:12:14,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 11:12:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-12 11:12:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-12 11:12:14,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:14,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:14,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:14,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:14,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:14,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:12:14,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:14,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:14,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:14,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:14,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:14,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:14,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:12:14,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:14,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 11:12:14,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:14,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:14,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 11:12:14,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:14,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 11:12:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:14,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:14,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:12:14,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:12:14,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:12:14,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:14,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 11:12:14,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:14,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 11:12:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:14,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:14,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 11:12:14,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:12:14,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 11:12:14,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 11:12:14,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:14,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 11:12:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:14,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:15,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:15,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:12:15,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:12:15,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 11:12:15,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 11:12:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:12:15,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:15,204 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 137 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-12 11:12:15,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577121931] [2020-10-12 11:12:15,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:15,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:12:15,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385007075] [2020-10-12 11:12:15,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:12:15,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:15,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:12:15,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:12:15,206 INFO L87 Difference]: Start difference. First operand 1562 states and 1903 transitions. Second operand 6 states. [2020-10-12 11:12:16,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:16,316 INFO L93 Difference]: Finished difference Result 3064 states and 3752 transitions. [2020-10-12 11:12:16,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:12:16,321 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 270 [2020-10-12 11:12:16,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:16,323 INFO L225 Difference]: With dead ends: 3064 [2020-10-12 11:12:16,323 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 11:12:16,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:12:16,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 11:12:16,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 11:12:16,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 11:12:16,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 11:12:16,330 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 270 [2020-10-12 11:12:16,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:16,330 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 11:12:16,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:12:16,331 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 11:12:16,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 11:12:16,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:12:16,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 11:12:16,683 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 50 [2020-10-12 11:12:16,803 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 61 [2020-10-12 11:12:17,550 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 77 [2020-10-12 11:12:17,720 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-10-12 11:12:17,856 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 52 [2020-10-12 11:12:17,860 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:12:17,860 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-12 11:12:17,860 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:12:17,861 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,861 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,861 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,861 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,861 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,861 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-12 11:12:17,861 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-12 11:12:17,861 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-12 11:12:17,862 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-12 11:12:17,862 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-12 11:12:17,862 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-12 11:12:17,862 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-12 11:12:17,862 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-12 11:12:17,862 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-12 11:12:17,862 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-12 11:12:17,862 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-12 11:12:17,862 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-12 11:12:17,863 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-12 11:12:17,863 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,863 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,863 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,863 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,863 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-12 11:12:17,863 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,863 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-12 11:12:17,863 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-12 11:12:17,864 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-12 11:12:17,864 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-12 11:12:17,864 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-12 11:12:17,866 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-12 11:12:17,866 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-12 11:12:17,866 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-12 11:12:17,866 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-12 11:12:17,866 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-12 11:12:17,866 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-12 11:12:17,867 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-12 11:12:17,867 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-12 11:12:17,867 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-12 11:12:17,867 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-12 11:12:17,867 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,868 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,868 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,869 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,869 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,869 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 559) no Hoare annotation was computed. [2020-10-12 11:12:17,869 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-12 11:12:17,869 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-12 11:12:17,869 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-12 11:12:17,869 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-12 11:12:17,869 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-12 11:12:17,870 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-12 11:12:17,870 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-12 11:12:17,870 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-12 11:12:17,870 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-12 11:12:17,870 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-12 11:12:17,870 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-12 11:12:17,870 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,870 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,870 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,871 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,871 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,871 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-12 11:12:17,871 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-12 11:12:17,871 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-12 11:12:17,871 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-12 11:12:17,871 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-12 11:12:17,871 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-12 11:12:17,871 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-12 11:12:17,872 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-12 11:12:17,872 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-12 11:12:17,872 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-12 11:12:17,872 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-12 11:12:17,872 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-12 11:12:17,873 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-12 11:12:17,873 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,873 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,873 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,874 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,874 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,874 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-12 11:12:17,874 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-12 11:12:17,874 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-12 11:12:17,874 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-12 11:12:17,874 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-12 11:12:17,874 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-12 11:12:17,874 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-12 11:12:17,874 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-12 11:12:17,875 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-12 11:12:17,875 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-12 11:12:17,875 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-12 11:12:17,875 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-12 11:12:17,875 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-12 11:12:17,875 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-12 11:12:17,875 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-12 11:12:17,875 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-12 11:12:17,875 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,876 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,876 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,876 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,876 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-12 11:12:17,876 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,876 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-12 11:12:17,876 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,876 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-12 11:12:17,877 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-12 11:12:17,877 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-12 11:12:17,877 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,877 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,877 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-12 11:12:17,878 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-12 11:12:17,878 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-12 11:12:17,878 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-12 11:12:17,878 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-12 11:12:17,878 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-12 11:12:17,878 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-12 11:12:17,878 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-12 11:12:17,878 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-12 11:12:17,878 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-12 11:12:17,878 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-12 11:12:17,879 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,879 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,879 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,879 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,879 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,879 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,879 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-12 11:12:17,879 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-12 11:12:17,879 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-12 11:12:17,879 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-12 11:12:17,880 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-12 11:12:17,880 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-12 11:12:17,880 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-12 11:12:17,880 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-12 11:12:17,880 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-12 11:12:17,880 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-12 11:12:17,880 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-12 11:12:17,880 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,880 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,880 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,881 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,881 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,881 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,881 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-12 11:12:17,881 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-12 11:12:17,881 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-12 11:12:17,881 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-12 11:12:17,881 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-12 11:12:17,881 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-12 11:12:17,881 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-12 11:12:17,882 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-12 11:12:17,882 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-12 11:12:17,882 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-12 11:12:17,882 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-12 11:12:17,882 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-12 11:12:17,882 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-12 11:12:17,882 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-12 11:12:17,882 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,882 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,882 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,883 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse6 (= ~a28~0 |old(~a28~0)|)) (.cse7 (= ~a25~0 |old(~a25~0)|)) (.cse8 (= |old(~a19~0)| 1)) (.cse0 (not (= 7 |old(~a17~0)|))) (.cse2 (= 7 ~a17~0)) (.cse3 (= ~a11~0 |old(~a11~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|)) (.cse9 (= 9 |old(~a28~0)|)) (.cse1 (not (= ~a21~0 1))) (.cse5 (not (= |old(~a11~0)| 1)))) (and (or (not (= 10 |old(~a28~0)|)) .cse0 (not (= 0 |old(~a19~0)|)) (not (= |old(~a19~0)| |old(~a25~0)|)) .cse1 (and .cse2 .cse3 (= ~a25~0 ~a19~0) .cse4 (= ~a28~0 10)) .cse5) (or (and .cse6 .cse3 .cse7 (= ~a17~0 8) .cse4) (not (= 8 |old(~a17~0)|)) .cse1) (or (not (<= 7 |old(~a17~0)|)) (not (<= |old(~a17~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a28~0)| 9)) (and (<= 7 ~a17~0) .cse3 (<= 9 ~a28~0) .cse7 (<= ~a28~0 9) (<= ~a17~0 7) .cse4) .cse1 (not (<= |old(~a19~0)| 0)) (not (<= |old(~a11~0)| 0)) (not (<= 9 |old(~a28~0)|))) (or (not .cse8) (and .cse6 (= ~a17~0 |old(~a17~0)|) .cse3 .cse7 .cse4) .cse9 .cse1) (or .cse8 (not (= |old(~a25~0)| 1)) .cse0 (and .cse2 .cse3 (= ~a25~0 1) (= ~a28~0 9) .cse4) (not .cse9) .cse1 .cse5))) [2020-10-12 11:12:17,883 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,883 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,883 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,883 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-12 11:12:17,883 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-12 11:12:17,884 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-12 11:12:17,884 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-12 11:12:17,884 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-12 11:12:17,884 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-12 11:12:17,884 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-12 11:12:17,884 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-12 11:12:17,884 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-12 11:12:17,884 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-12 11:12:17,884 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-12 11:12:17,884 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-12 11:12:17,885 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-12 11:12:17,885 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,885 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,885 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,885 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,885 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,885 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,885 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-12 11:12:17,885 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-12 11:12:17,885 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-12 11:12:17,886 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-12 11:12:17,886 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-12 11:12:17,886 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-12 11:12:17,886 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-12 11:12:17,886 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-12 11:12:17,886 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-12 11:12:17,886 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-12 11:12:17,886 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-12 11:12:17,886 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-12 11:12:17,887 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-12 11:12:17,887 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-12 11:12:17,887 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-12 11:12:17,887 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-12 11:12:17,887 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,887 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,887 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,887 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,887 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:12:17,887 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-12 11:12:17,888 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-12 11:12:17,888 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-12 11:12:17,888 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-12 11:12:17,888 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-12 11:12:17,888 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-12 11:12:17,888 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-12 11:12:17,888 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-12 11:12:17,888 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-12 11:12:17,888 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-12 11:12:17,888 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-12 11:12:17,889 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-12 11:12:17,889 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-12 11:12:17,889 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-12 11:12:17,889 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-12 11:12:17,889 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-12 11:12:17,889 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-12 11:12:17,889 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-12 11:12:17,889 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-12 11:12:17,889 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:12:17,889 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (= ~a17~0 8) (= 7 ~a28~0)) [2020-10-12 11:12:17,890 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 11:12:17,890 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:12:17,890 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-12 11:12:17,890 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (= 7 ~a17~0)) (.cse1 (= ~a11~0 1)) (.cse3 (= ~a28~0 9)) (.cse2 (= ~a19~0 1))) (or (and (= ~a19~0 0) .cse0 .cse1 (= ~a25~0 ~a19~0) (= ~a28~0 10)) (not (= |old(~a19~0)| 1)) (= ~a17~0 8) (and (<= ~a11~0 0) (<= ~a19~0 0) (<= 7 ~a17~0) (<= 9 ~a28~0) (<= ~a28~0 9) (<= ~a17~0 7) (<= ~a25~0 0)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (and .cse0 (not .cse2) (= ~a25~0 1) .cse3 .cse1) (and (not .cse3) .cse2) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-12 11:12:17,890 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-12 11:12:17,890 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-12 11:12:17,890 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (= 7 ~a17~0)) (.cse1 (= ~a11~0 1)) (.cse3 (= ~a28~0 9)) (.cse2 (= ~a19~0 1))) (or (and (= ~a19~0 0) .cse0 .cse1 (= ~a25~0 ~a19~0) (= ~a28~0 10)) (not (= |old(~a19~0)| 1)) (= ~a17~0 8) (and (<= ~a11~0 0) (<= ~a19~0 0) (<= 7 ~a17~0) (<= 9 ~a28~0) (<= ~a28~0 9) (<= ~a17~0 7) (<= ~a25~0 0)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (and .cse0 (not .cse2) (= ~a25~0 1) .cse3 .cse1) (and (not .cse3) .cse2) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-12 11:12:17,891 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-12 11:12:17,891 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-12 11:12:17,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:12:17 BoogieIcfgContainer [2020-10-12 11:12:17,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:12:17,924 INFO L168 Benchmark]: Toolchain (without parser) took 46857.97 ms. Allocated memory was 139.5 MB in the beginning and 868.2 MB in the end (delta: 728.8 MB). Free memory was 101.0 MB in the beginning and 316.3 MB in the end (delta: -215.3 MB). Peak memory consumption was 513.4 MB. Max. memory is 7.1 GB. [2020-10-12 11:12:17,927 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 11:12:17,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.37 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 171.8 MB in the end (delta: -71.0 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-10-12 11:12:17,931 INFO L168 Benchmark]: Boogie Preprocessor took 120.76 ms. Allocated memory is still 204.5 MB. Free memory was 171.8 MB in the beginning and 166.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-12 11:12:17,937 INFO L168 Benchmark]: RCFGBuilder took 1356.16 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 166.8 MB in the beginning and 182.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-10-12 11:12:17,938 INFO L168 Benchmark]: TraceAbstraction took 44552.91 ms. Allocated memory was 237.0 MB in the beginning and 868.2 MB in the end (delta: 631.2 MB). Free memory was 182.6 MB in the beginning and 316.3 MB in the end (delta: -133.7 MB). Peak memory consumption was 497.6 MB. Max. memory is 7.1 GB. [2020-10-12 11:12:17,947 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 823.37 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 171.8 MB in the end (delta: -71.0 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.76 ms. Allocated memory is still 204.5 MB. Free memory was 171.8 MB in the beginning and 166.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1356.16 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 166.8 MB in the beginning and 182.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44552.91 ms. Allocated memory was 237.0 MB in the beginning and 868.2 MB in the end (delta: 631.2 MB). Free memory was 182.6 MB in the beginning and 316.3 MB in the end (delta: -133.7 MB). Peak memory consumption was 497.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 559]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((((((a19 == 0 && 7 == a17) && a11 == 1) && a25 == a19) && a28 == 10) || !(\old(a19) == 1)) || a17 == 8) || ((((((a11 <= 0 && a19 <= 0) && 7 <= a17) && 9 <= a28) && a28 <= 9) && a17 <= 7) && a25 <= 0)) || !(8 == \old(a17))) || !(0 == \old(a25))) || !(a21 == 1)) || !(7 == \old(a28))) || ((((7 == a17 && !(a19 == 1)) && a25 == 1) && a28 == 9) && a11 == 1)) || (!(a28 == 9) && a19 == 1)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 42.8s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 17.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 359 SDtfs, 4421 SDslu, 513 SDs, 0 SdLazy, 8187 SolverSat, 1209 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 76 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1592occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 74 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 73 PreInvPairs, 106 NumberOfFragments, 485 HoareAnnotationTreeSize, 73 FomulaSimplifications, 137349 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1650 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 1869 NumberOfCodeBlocks, 1869 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1859 ConstructedInterpolants, 0 QuantifiedInterpolants, 3504558 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 711/734 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...