/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:26:26,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:26:26,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:26:26,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:26:26,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:26:26,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:26:26,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:26:26,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:26:26,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:26:26,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:26:26,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:26:26,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:26:26,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:26:26,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:26:26,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:26:26,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:26:26,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:26:26,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:26:26,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:26:26,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:26:26,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:26:26,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:26:26,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:26:26,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:26:26,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:26:26,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:26:26,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:26:26,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:26:26,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:26:26,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:26:26,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:26:26,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:26:26,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:26:26,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:26:26,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:26:26,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:26:26,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:26:26,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:26:26,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:26:26,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:26:26,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:26:26,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:26:26,863 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:26:26,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:26:26,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:26:26,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:26:26,867 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:26:26,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:26:26,867 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:26:26,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:26:26,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:26:26,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:26:26,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:26:26,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:26:26,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:26:26,870 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:26:26,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:26:26,871 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:26:26,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:26:26,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:26:26,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:26:26,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:26:26,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:26:26,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:26:26,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:26:26,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:26:26,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:26:26,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:26:26,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:26:26,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:26:26,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:26:26,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:26:27,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:26:27,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:26:27,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:26:27,373 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:26:27,374 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:26:27,375 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-09-21 11:26:27,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/459175a36/a2a157dcf8854d3db19f08142ce5fce1/FLAGcabcc499f [2020-09-21 11:26:28,175 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:26:28,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-09-21 11:26:28,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/459175a36/a2a157dcf8854d3db19f08142ce5fce1/FLAGcabcc499f [2020-09-21 11:26:28,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/459175a36/a2a157dcf8854d3db19f08142ce5fce1 [2020-09-21 11:26:28,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:26:28,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:26:28,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:26:28,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:26:28,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:26:28,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:26:28" (1/1) ... [2020-09-21 11:26:28,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24493d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:28, skipping insertion in model container [2020-09-21 11:26:28,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:26:28" (1/1) ... [2020-09-21 11:26:28,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:26:28,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:26:29,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:26:29,280 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:26:29,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:26:29,458 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:26:29,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:29 WrapperNode [2020-09-21 11:26:29,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:26:29,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:26:29,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:26:29,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:26:29,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:29" (1/1) ... [2020-09-21 11:26:29,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:29" (1/1) ... [2020-09-21 11:26:29,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:29" (1/1) ... [2020-09-21 11:26:29,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:29" (1/1) ... [2020-09-21 11:26:29,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:29" (1/1) ... [2020-09-21 11:26:29,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:29" (1/1) ... [2020-09-21 11:26:29,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:29" (1/1) ... [2020-09-21 11:26:29,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:26:29,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:26:29,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:26:29,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:26:29,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:26:29,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:26:29,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:26:29,659 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:26:29,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:26:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:26:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:26:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:26:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:26:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:26:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:26:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:26:30,886 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:26:30,886 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:26:30,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:26:30 BoogieIcfgContainer [2020-09-21 11:26:30,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:26:30,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:26:30,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:26:30,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:26:30,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:26:28" (1/3) ... [2020-09-21 11:26:30,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467d4b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:26:30, skipping insertion in model container [2020-09-21 11:26:30,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:29" (2/3) ... [2020-09-21 11:26:30,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467d4b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:26:30, skipping insertion in model container [2020-09-21 11:26:30,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:26:30" (3/3) ... [2020-09-21 11:26:30,911 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-09-21 11:26:30,923 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:26:30,936 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:26:30,960 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:26:31,000 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:26:31,001 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:26:31,001 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:26:31,001 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:26:31,001 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:26:31,001 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:26:31,002 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:26:31,002 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:26:31,032 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-09-21 11:26:31,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-21 11:26:31,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:31,048 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] [2020-09-21 11:26:31,049 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:31,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:31,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179338, now seen corresponding path program 1 times [2020-09-21 11:26:31,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:31,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121940282] [2020-09-21 11:26:31,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:31,409 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:31,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:31,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:31,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:31,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-21 11:26:31,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:31,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-21 11:26:31,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:31,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:26:31,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:26:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 11:26:31,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:31,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:31,696 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:31,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:31,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:31,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:31,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:31,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:31,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:26:31,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:26:31,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:31,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:26:31,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121940282] [2020-09-21 11:26:31,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:26:31,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:26:31,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540311286] [2020-09-21 11:26:31,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:26:31,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:31,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:26:31,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:26:31,829 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-09-21 11:26:34,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:34,343 INFO L93 Difference]: Finished difference Result 784 states and 1378 transitions. [2020-09-21 11:26:34,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:26:34,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-09-21 11:26:34,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:34,369 INFO L225 Difference]: With dead ends: 784 [2020-09-21 11:26:34,370 INFO L226 Difference]: Without dead ends: 480 [2020-09-21 11:26:34,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:26:34,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-21 11:26:34,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 473. [2020-09-21 11:26:34,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-09-21 11:26:34,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 645 transitions. [2020-09-21 11:26:34,482 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 645 transitions. Word has length 96 [2020-09-21 11:26:34,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:34,483 INFO L479 AbstractCegarLoop]: Abstraction has 473 states and 645 transitions. [2020-09-21 11:26:34,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:26:34,483 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 645 transitions. [2020-09-21 11:26:34,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-09-21 11:26:34,498 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:34,499 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:26:34,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:26:34,499 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:34,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:34,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1318994351, now seen corresponding path program 1 times [2020-09-21 11:26:34,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:34,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974704713] [2020-09-21 11:26:34,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:34,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:34,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:34,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:34,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:34,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-21 11:26:34,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:34,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 11:26:34,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:34,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:34,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:26:34,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:26:34,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:34,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:34,863 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:34,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:34,864 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:34,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:34,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:34,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:34,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:34,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:34,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:34,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:34,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:34,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:34,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:34,894 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:34,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:34,895 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:34,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:34,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:26:34,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:34,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:26:34,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:34,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:26:34,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:34,929 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:26:34,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974704713] [2020-09-21 11:26:34,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:34,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:26:34,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719078850] [2020-09-21 11:26:34,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:26:34,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:34,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:26:34,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:26:34,934 INFO L87 Difference]: Start difference. First operand 473 states and 645 transitions. Second operand 5 states. [2020-09-21 11:26:36,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:36,189 INFO L93 Difference]: Finished difference Result 1383 states and 1926 transitions. [2020-09-21 11:26:36,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:26:36,191 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-09-21 11:26:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:36,202 INFO L225 Difference]: With dead ends: 1383 [2020-09-21 11:26:36,203 INFO L226 Difference]: Without dead ends: 916 [2020-09-21 11:26:36,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:26:36,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2020-09-21 11:26:36,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 912. [2020-09-21 11:26:36,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2020-09-21 11:26:36,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1230 transitions. [2020-09-21 11:26:36,265 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1230 transitions. Word has length 117 [2020-09-21 11:26:36,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:36,265 INFO L479 AbstractCegarLoop]: Abstraction has 912 states and 1230 transitions. [2020-09-21 11:26:36,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:26:36,266 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1230 transitions. [2020-09-21 11:26:36,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-21 11:26:36,273 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:36,273 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:36,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:26:36,274 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:36,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:36,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1263577656, now seen corresponding path program 1 times [2020-09-21 11:26:36,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:36,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220619676] [2020-09-21 11:26:36,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:36,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:26:36,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -14 [2020-09-21 11:26:36,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 14 [2020-09-21 11:26:36,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:36,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-21 11:26:36,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:36,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:26:36,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:36,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:36,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-21 11:26:36,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:26:36,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:36,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:36,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:36,519 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:36,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:36,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:36,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:36,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:36,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:36,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:36,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:36,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:36,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:36,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:36,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:36,554 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:36,554 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:36,555 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:36,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:36,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:26:36,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:36,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:26:36,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:36,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:26:36,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:36,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 11:26:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:36,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:36,605 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:36,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:36,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:36,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:26:36,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:36,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:26:36,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:26:36,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:36,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:26:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:36,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:36,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:36,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:36,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:36,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:26:36,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:36,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:36,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:36,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:36,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 11:26:36,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:36,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:36,804 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 64 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-21 11:26:36,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220619676] [2020-09-21 11:26:36,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:36,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:26:36,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371242074] [2020-09-21 11:26:36,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:26:36,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:36,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:26:36,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:26:36,814 INFO L87 Difference]: Start difference. First operand 912 states and 1230 transitions. Second operand 8 states. [2020-09-21 11:26:39,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:39,126 INFO L93 Difference]: Finished difference Result 2142 states and 2971 transitions. [2020-09-21 11:26:39,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:26:39,127 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 160 [2020-09-21 11:26:39,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:39,136 INFO L225 Difference]: With dead ends: 2142 [2020-09-21 11:26:39,136 INFO L226 Difference]: Without dead ends: 1236 [2020-09-21 11:26:39,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:26:39,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2020-09-21 11:26:39,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1223. [2020-09-21 11:26:39,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-09-21 11:26:39,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1636 transitions. [2020-09-21 11:26:39,188 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1636 transitions. Word has length 160 [2020-09-21 11:26:39,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:39,189 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1636 transitions. [2020-09-21 11:26:39,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:26:39,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1636 transitions. [2020-09-21 11:26:39,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-21 11:26:39,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:39,195 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:26:39,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:26:39,196 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:39,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:39,196 INFO L82 PathProgramCache]: Analyzing trace with hash -424019874, now seen corresponding path program 1 times [2020-09-21 11:26:39,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:39,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149538549] [2020-09-21 11:26:39,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:39,244 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:39,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:39,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:39,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:39,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-21 11:26:39,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:39,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:26:39,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:39,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:39,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:26:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:26:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:39,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:39,318 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:39,318 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:39,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:39,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:39,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:39,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:39,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:39,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:39,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:39,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:39,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:39,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:39,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:39,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:39,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:39,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:39,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:26:39,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:39,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:39,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:39,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:39,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:39,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:26:39,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:39,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:26:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:39,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:39,371 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:39,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:39,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:39,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:26:39,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:39,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:26:39,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:39,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:39,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:39,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:26:39,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:39,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:26:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:39,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:39,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:39,406 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:39,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:39,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:26:39,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:39,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:39,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 11:26:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:39,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:39,510 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 74 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-21 11:26:39,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149538549] [2020-09-21 11:26:39,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:39,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:26:39,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005956593] [2020-09-21 11:26:39,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:26:39,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:39,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:26:39,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:26:39,519 INFO L87 Difference]: Start difference. First operand 1223 states and 1636 transitions. Second operand 7 states. [2020-09-21 11:26:41,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:41,979 INFO L93 Difference]: Finished difference Result 4736 states and 7045 transitions. [2020-09-21 11:26:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:26:41,980 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-21 11:26:41,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:42,012 INFO L225 Difference]: With dead ends: 4736 [2020-09-21 11:26:42,012 INFO L226 Difference]: Without dead ends: 3519 [2020-09-21 11:26:42,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:26:42,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3519 states. [2020-09-21 11:26:42,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3519 to 3045. [2020-09-21 11:26:42,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3045 states. [2020-09-21 11:26:42,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 4146 transitions. [2020-09-21 11:26:42,171 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 4146 transitions. Word has length 172 [2020-09-21 11:26:42,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:42,173 INFO L479 AbstractCegarLoop]: Abstraction has 3045 states and 4146 transitions. [2020-09-21 11:26:42,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:26:42,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 4146 transitions. [2020-09-21 11:26:42,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-21 11:26:42,189 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:42,189 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:42,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:26:42,190 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:42,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:42,190 INFO L82 PathProgramCache]: Analyzing trace with hash 443064290, now seen corresponding path program 1 times [2020-09-21 11:26:42,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:42,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036453415] [2020-09-21 11:26:42,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:42,247 FATAL L256 erpolLogProxyWrapper]: Difference in size: 6 [2020-09-21 11:26:42,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -25 [2020-09-21 11:26:42,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 25 [2020-09-21 11:26:42,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:42,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-21 11:26:42,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:42,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:26:42,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-21 11:26:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:26:42,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:42,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:42,327 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:42,327 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:42,328 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:42,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:42,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:42,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:42,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:42,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:42,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:42,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:42,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:42,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:42,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:42,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:42,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:42,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:42,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:42,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:26:42,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:26:42,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:26:42,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:42,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:26:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:42,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:42,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:42,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:42,394 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:42,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:26:42,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:42,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:26:42,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:42,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:42,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:42,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:26:42,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:42,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:26:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:42,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:42,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:42,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:42,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:42,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:26:42,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:42,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:42,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 11:26:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:42,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:42,608 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 80 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-21 11:26:42,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036453415] [2020-09-21 11:26:42,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:42,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:26:42,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611199261] [2020-09-21 11:26:42,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:26:42,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:42,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:26:42,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:26:42,611 INFO L87 Difference]: Start difference. First operand 3045 states and 4146 transitions. Second operand 7 states. [2020-09-21 11:26:44,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:44,429 INFO L93 Difference]: Finished difference Result 6104 states and 8359 transitions. [2020-09-21 11:26:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:26:44,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-09-21 11:26:44,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:44,449 INFO L225 Difference]: With dead ends: 6104 [2020-09-21 11:26:44,449 INFO L226 Difference]: Without dead ends: 3069 [2020-09-21 11:26:44,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:26:44,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2020-09-21 11:26:44,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 3057. [2020-09-21 11:26:44,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3057 states. [2020-09-21 11:26:44,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 3911 transitions. [2020-09-21 11:26:44,592 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 3911 transitions. Word has length 175 [2020-09-21 11:26:44,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:44,594 INFO L479 AbstractCegarLoop]: Abstraction has 3057 states and 3911 transitions. [2020-09-21 11:26:44,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:26:44,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 3911 transitions. [2020-09-21 11:26:44,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-21 11:26:44,621 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:44,622 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:44,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:26:44,622 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:44,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:44,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1998620505, now seen corresponding path program 1 times [2020-09-21 11:26:44,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:44,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370033473] [2020-09-21 11:26:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:44,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:44,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:44,798 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:44,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:44,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-21 11:26:44,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:44,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 11:26:44,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:26:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:26:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-21 11:26:44,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:44,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:44,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:44,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:44,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:44,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:44,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:44,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:44,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:26:44,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:44,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:44,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:44,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:26:44,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:44,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:44,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:44,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:44,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:44,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:44,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:26:44,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:44,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:26:44,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:44,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:26:44,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:44,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 11:26:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:44,962 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:44,963 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:44,963 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:44,963 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:44,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:26:44,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:44,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:26:44,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:44,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:44,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:44,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:26:44,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:44,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:26:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:44,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:44,996 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:44,996 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:44,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:44,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:26:44,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:44,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:26:44,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-21 11:26:45,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:45,087 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 110 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-21 11:26:45,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370033473] [2020-09-21 11:26:45,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:45,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:26:45,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034319161] [2020-09-21 11:26:45,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:26:45,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:45,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:26:45,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:26:45,093 INFO L87 Difference]: Start difference. First operand 3057 states and 3911 transitions. Second operand 7 states. [2020-09-21 11:26:46,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:46,563 INFO L93 Difference]: Finished difference Result 6491 states and 8812 transitions. [2020-09-21 11:26:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:26:46,564 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 185 [2020-09-21 11:26:46,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:46,564 INFO L225 Difference]: With dead ends: 6491 [2020-09-21 11:26:46,564 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:26:46,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:26:46,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:26:46,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:26:46,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:26:46,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:26:46,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 185 [2020-09-21 11:26:46,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:46,589 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:26:46,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:26:46,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:26:46,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:26:46,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:26:46,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:26:48,514 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 26 [2020-09-21 11:26:48,660 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 26 [2020-09-21 11:26:49,276 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 41 [2020-09-21 11:26:49,474 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:26:49,474 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)|)) [2020-09-21 11:26:49,474 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:26:49,475 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,475 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,475 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,475 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,475 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,475 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-09-21 11:26:49,475 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-09-21 11:26:49,476 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-21 11:26:49,476 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-09-21 11:26:49,476 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-09-21 11:26:49,476 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-09-21 11:26:49,476 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-09-21 11:26:49,477 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-09-21 11:26:49,477 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-09-21 11:26:49,477 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-09-21 11:26:49,477 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-09-21 11:26:49,477 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-09-21 11:26:49,477 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-09-21 11:26:49,477 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,478 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,478 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,478 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,478 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-09-21 11:26:49,478 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,478 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-09-21 11:26:49,478 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-09-21 11:26:49,478 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-09-21 11:26:49,479 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-09-21 11:26:49,479 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-09-21 11:26:49,479 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-09-21 11:26:49,479 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-09-21 11:26:49,479 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-09-21 11:26:49,479 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-09-21 11:26:49,479 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-09-21 11:26:49,480 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-09-21 11:26:49,480 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-09-21 11:26:49,480 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-09-21 11:26:49,480 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-09-21 11:26:49,480 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-09-21 11:26:49,480 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,481 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,481 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,481 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,481 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,481 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 442) no Hoare annotation was computed. [2020-09-21 11:26:49,481 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-09-21 11:26:49,481 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-09-21 11:26:49,482 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-09-21 11:26:49,482 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-21 11:26:49,482 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-09-21 11:26:49,482 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-09-21 11:26:49,482 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-09-21 11:26:49,482 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-09-21 11:26:49,482 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-09-21 11:26:49,483 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-09-21 11:26:49,483 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-09-21 11:26:49,483 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,483 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,483 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,483 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,483 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,484 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-09-21 11:26:49,484 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-09-21 11:26:49,484 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-09-21 11:26:49,484 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-09-21 11:26:49,484 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-09-21 11:26:49,484 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-09-21 11:26:49,484 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-09-21 11:26:49,484 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-09-21 11:26:49,485 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-09-21 11:26:49,485 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-09-21 11:26:49,485 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-09-21 11:26:49,485 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-09-21 11:26:49,485 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-09-21 11:26:49,485 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,485 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,486 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,486 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,486 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,486 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-09-21 11:26:49,486 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-21 11:26:49,486 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-09-21 11:26:49,486 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-09-21 11:26:49,487 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-09-21 11:26:49,487 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-09-21 11:26:49,487 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-09-21 11:26:49,487 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-09-21 11:26:49,487 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-09-21 11:26:49,487 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-09-21 11:26:49,487 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-09-21 11:26:49,487 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-09-21 11:26:49,488 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-09-21 11:26:49,488 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-09-21 11:26:49,488 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-09-21 11:26:49,488 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-09-21 11:26:49,488 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,488 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,488 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,488 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,489 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-09-21 11:26:49,489 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,489 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-09-21 11:26:49,489 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,489 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-09-21 11:26:49,489 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-09-21 11:26:49,489 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-09-21 11:26:49,489 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,490 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,490 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-09-21 11:26:49,490 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-09-21 11:26:49,490 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-09-21 11:26:49,490 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-09-21 11:26:49,490 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-09-21 11:26:49,490 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-09-21 11:26:49,491 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-09-21 11:26:49,491 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-09-21 11:26:49,491 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-09-21 11:26:49,491 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-09-21 11:26:49,491 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-09-21 11:26:49,491 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,491 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,492 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,492 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,492 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,492 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,492 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-09-21 11:26:49,492 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-09-21 11:26:49,492 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-09-21 11:26:49,492 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-09-21 11:26:49,493 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-09-21 11:26:49,493 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-09-21 11:26:49,493 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-09-21 11:26:49,493 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-09-21 11:26:49,493 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-09-21 11:26:49,493 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-09-21 11:26:49,493 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-09-21 11:26:49,493 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,494 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,494 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,494 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,494 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,494 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,494 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-09-21 11:26:49,494 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-09-21 11:26:49,494 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-09-21 11:26:49,495 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-09-21 11:26:49,495 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-09-21 11:26:49,495 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-09-21 11:26:49,495 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-09-21 11:26:49,495 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-09-21 11:26:49,495 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-09-21 11:26:49,495 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-09-21 11:26:49,495 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-09-21 11:26:49,496 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-09-21 11:26:49,496 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-09-21 11:26:49,496 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-09-21 11:26:49,496 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,496 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,496 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,497 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse2 (= ~a28~0 |old(~a28~0)|)) (.cse3 (= ~a11~0 |old(~a11~0)|)) (.cse4 (= ~a25~0 |old(~a25~0)|)) (.cse6 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (and .cse2 (= ~a17~0 |old(~a17~0)|) .cse3 .cse4 .cse6)) (.cse5 (= ~a17~0 8)) (.cse7 (not (= 8 |old(~a17~0)|))) (.cse0 (= 8 |old(~a28~0)|))) (and (or .cse0 (= |old(~a19~0)| 1) .cse1) (or (not (<= |old(~a28~0)| 7)) .cse1) (or .cse1 (not (<= 10 |old(~a28~0)|))) (or .cse0 (and .cse2 .cse3 .cse4 .cse5 .cse6) .cse7) (or (and .cse3 .cse4 .cse5 (= ~a28~0 8) .cse6) .cse7 (= |old(~a11~0)| 1) (not .cse0))))) [2020-09-21 11:26:49,497 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,497 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,497 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,497 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-09-21 11:26:49,497 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-09-21 11:26:49,497 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-09-21 11:26:49,497 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-09-21 11:26:49,498 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-09-21 11:26:49,498 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-09-21 11:26:49,498 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-09-21 11:26:49,498 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-09-21 11:26:49,498 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-09-21 11:26:49,498 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-09-21 11:26:49,498 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-09-21 11:26:49,498 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-09-21 11:26:49,499 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-09-21 11:26:49,499 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,499 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,499 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,499 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,499 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,499 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,499 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-09-21 11:26:49,500 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-09-21 11:26:49,500 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-09-21 11:26:49,500 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-09-21 11:26:49,500 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-09-21 11:26:49,500 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-09-21 11:26:49,500 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-09-21 11:26:49,500 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-09-21 11:26:49,500 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-09-21 11:26:49,501 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-09-21 11:26:49,501 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-09-21 11:26:49,501 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-09-21 11:26:49,501 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-09-21 11:26:49,501 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-09-21 11:26:49,501 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-09-21 11:26:49,501 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-09-21 11:26:49,501 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,501 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,502 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,502 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,502 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:26:49,502 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-09-21 11:26:49,502 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-09-21 11:26:49,502 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-09-21 11:26:49,502 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-09-21 11:26:49,502 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-21 11:26:49,503 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-09-21 11:26:49,503 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-09-21 11:26:49,503 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-09-21 11:26:49,503 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-09-21 11:26:49,503 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-09-21 11:26:49,503 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-09-21 11:26:49,503 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-09-21 11:26:49,503 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-09-21 11:26:49,504 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-09-21 11:26:49,504 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-09-21 11:26:49,504 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-09-21 11:26:49,504 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-09-21 11:26:49,504 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-09-21 11:26:49,504 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-09-21 11:26:49,504 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:26:49,504 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a17~0 8) (not (= ~a11~0 1)) (<= ~a28~0 7)) [2020-09-21 11:26:49,505 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:26:49,505 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:26:49,505 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (= |old(~a11~0)| 1)) [2020-09-21 11:26:49,505 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (= ~a17~0 8)) (.cse0 (not (= ~a28~0 8)))) (or (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1) (<= 10 ~a28~0) (not (= 8 |old(~a17~0)|)) (= |old(~a11~0)| 1) (and .cse1 (not (= ~a11~0 1))) (<= ~a28~0 7) (and .cse0 (not (= ~a19~0 1))))) [2020-09-21 11:26:49,505 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-09-21 11:26:49,505 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-09-21 11:26:49,506 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (= ~a17~0 8)) (.cse0 (not (= ~a28~0 8)))) (or (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1) (<= 10 ~a28~0) (not (= 8 |old(~a17~0)|)) (= |old(~a11~0)| 1) (and .cse1 (not (= ~a11~0 1))) (<= ~a28~0 7) (and .cse0 (not (= ~a19~0 1))))) [2020-09-21 11:26:49,506 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-09-21 11:26:49,506 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-09-21 11:26:49,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:26:49 BoogieIcfgContainer [2020-09-21 11:26:49,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:26:49,532 INFO L168 Benchmark]: Toolchain (without parser) took 21033.36 ms. Allocated memory was 140.0 MB in the beginning and 523.8 MB in the end (delta: 383.8 MB). Free memory was 101.1 MB in the beginning and 191.5 MB in the end (delta: -90.4 MB). Peak memory consumption was 293.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:26:49,532 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:26:49,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 956.94 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 169.2 MB in the end (delta: -68.7 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:26:49,534 INFO L168 Benchmark]: Boogie Preprocessor took 111.83 ms. Allocated memory is still 204.5 MB. Free memory was 169.2 MB in the beginning and 164.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:26:49,535 INFO L168 Benchmark]: RCFGBuilder took 1327.04 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 164.4 MB in the beginning and 180.1 MB in the end (delta: -15.7 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:26:49,536 INFO L168 Benchmark]: TraceAbstraction took 18629.06 ms. Allocated memory was 238.6 MB in the beginning and 523.8 MB in the end (delta: 285.2 MB). Free memory was 178.6 MB in the beginning and 191.5 MB in the end (delta: -12.9 MB). Peak memory consumption was 272.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:26:49,540 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 956.94 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 169.2 MB in the end (delta: -68.7 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.83 ms. Allocated memory is still 204.5 MB. Free memory was 169.2 MB in the beginning and 164.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1327.04 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 164.4 MB in the beginning and 180.1 MB in the end (delta: -15.7 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18629.06 ms. Allocated memory was 238.6 MB in the beginning and 523.8 MB in the end (delta: 285.2 MB). Free memory was 178.6 MB in the beginning and 191.5 MB in the end (delta: -12.9 MB). Peak memory consumption was 272.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 442]: 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: ((((((!(\old(a28) <= 7) || (!(a28 == 8) && a17 == 8)) || 10 <= a28) || !(8 == \old(a17))) || \old(a11) == 1) || (a17 == 8 && !(a11 == 1))) || a28 <= 7) || (!(a28 == 8) && !(a19 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.5s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 265 SDtfs, 3348 SDslu, 400 SDs, 0 SdLazy, 6369 SolverSat, 1244 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3057occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 510 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 149 PreInvPairs, 275 NumberOfFragments, 296 HoareAnnotationTreeSize, 149 FomulaSimplifications, 17334 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1793 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 905 NumberOfCodeBlocks, 905 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 899 ConstructedInterpolants, 0 QuantifiedInterpolants, 320989 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 406/435 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...