/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_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:25:29,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:25:29,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:25:29,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:25:29,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:25:29,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:25:29,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:25:29,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:25:29,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:25:29,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:25:29,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:25:29,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:25:29,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:25:29,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:25:29,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:25:29,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:25:29,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:25:29,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:25:29,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:25:29,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:25:29,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:25:29,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:25:29,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:25:29,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:25:29,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:25:29,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:25:29,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:25:29,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:25:29,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:25:29,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:25:29,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:25:29,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:25:29,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:25:29,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:25:29,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:25:29,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:25:29,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:25:29,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:25:29,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:25:29,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:25:29,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:25:29,855 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 11:25:29,903 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:25:29,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:25:29,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:25:29,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:25:29,906 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:25:29,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:25:29,906 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:25:29,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:25:29,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:25:29,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:25:29,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:25:29,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:25:29,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:25:29,909 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:25:29,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:25:29,909 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:25:29,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:25:29,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:25:29,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:25:29,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:25:29,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:25:29,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:25:29,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:25:29,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:25:29,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:25:29,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:25:29,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:25:29,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:25:29,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:25:29,912 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 11:25:30,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:25:30,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:25:30,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:25:30,380 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:25:30,381 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:25:30,382 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label01.c [2020-09-21 11:25:30,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc48167a7/29b93161e5a240f1be742b24f417941f/FLAG0339375a2 [2020-09-21 11:25:31,091 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:25:31,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label01.c [2020-09-21 11:25:31,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc48167a7/29b93161e5a240f1be742b24f417941f/FLAG0339375a2 [2020-09-21 11:25:31,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc48167a7/29b93161e5a240f1be742b24f417941f [2020-09-21 11:25:31,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:25:31,328 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:25:31,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:25:31,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:25:31,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:25:31,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:25:31" (1/1) ... [2020-09-21 11:25:31,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f80c2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:31, skipping insertion in model container [2020-09-21 11:25:31,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:25:31" (1/1) ... [2020-09-21 11:25:31,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:25:31,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:25:32,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:25:32,065 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:25:32,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:25:32,201 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:25:32,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:32 WrapperNode [2020-09-21 11:25:32,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:25:32,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:25:32,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:25:32,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:25:32,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:32" (1/1) ... [2020-09-21 11:25:32,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:32" (1/1) ... [2020-09-21 11:25:32,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:32" (1/1) ... [2020-09-21 11:25:32,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:32" (1/1) ... [2020-09-21 11:25:32,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:32" (1/1) ... [2020-09-21 11:25:32,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:32" (1/1) ... [2020-09-21 11:25:32,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:32" (1/1) ... [2020-09-21 11:25:32,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:25:32,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:25:32,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:25:32,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:25:32,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:32" (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 11:25:32,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:25:32,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:25:32,433 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:25:32,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:25:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:25:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:25:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:25:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:25:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:25:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:25:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:25:33,752 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:25:33,753 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:25:33,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:25:33 BoogieIcfgContainer [2020-09-21 11:25:33,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:25:33,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:25:33,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:25:33,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:25:33,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:25:31" (1/3) ... [2020-09-21 11:25:33,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5074d5d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:25:33, skipping insertion in model container [2020-09-21 11:25:33,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:32" (2/3) ... [2020-09-21 11:25:33,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5074d5d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:25:33, skipping insertion in model container [2020-09-21 11:25:33,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:25:33" (3/3) ... [2020-09-21 11:25:33,773 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label01.c [2020-09-21 11:25:33,786 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:25:33,799 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:25:33,826 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:25:33,867 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:25:33,868 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:25:33,868 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:25:33,868 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:25:33,868 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:25:33,869 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:25:33,869 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:25:33,869 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:25:33,903 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-09-21 11:25:33,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-21 11:25:33,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:33,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:33,923 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:33,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:33,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1511676745, now seen corresponding path program 1 times [2020-09-21 11:25:33,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:33,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484550094] [2020-09-21 11:25:33,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:34,296 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:34,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:34,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:34,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:34,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-21 11:25:34,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:34,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-21 11:25:34,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:34,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:34,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:34,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-21 11:25:34,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:34,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:34,678 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:34,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:34,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:34,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:34,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:34,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:34,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:25:34,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:34,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:34,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:34,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:34,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:34,763 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 11:25:34,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484550094] [2020-09-21 11:25:34,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:25:34,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:25:34,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581787155] [2020-09-21 11:25:34,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:34,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:34,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:34,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:34,803 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-09-21 11:25:37,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:37,306 INFO L93 Difference]: Finished difference Result 828 states and 1432 transitions. [2020-09-21 11:25:37,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:25:37,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-09-21 11:25:37,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:37,331 INFO L225 Difference]: With dead ends: 828 [2020-09-21 11:25:37,331 INFO L226 Difference]: Without dead ends: 494 [2020-09-21 11:25:37,340 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 11:25:37,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-21 11:25:37,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 475. [2020-09-21 11:25:37,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-09-21 11:25:37,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 685 transitions. [2020-09-21 11:25:37,467 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 685 transitions. Word has length 119 [2020-09-21 11:25:37,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:37,468 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 685 transitions. [2020-09-21 11:25:37,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:37,473 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 685 transitions. [2020-09-21 11:25:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 11:25:37,479 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:37,480 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:37,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:25:37,480 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:37,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:37,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1075041230, now seen corresponding path program 1 times [2020-09-21 11:25:37,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:37,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287440158] [2020-09-21 11:25:37,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:37,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:37,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:37,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:37,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:37,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:25:37,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:37,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:25:37,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:37,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:25:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-21 11:25:37,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:37,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:37,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:37,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:37,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:37,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:37,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:37,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:25:37,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:37,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:37,814 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:37,814 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:37,814 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:37,815 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:37,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:25:37,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:25:37,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:25:37,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:37,843 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:25:37,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287440158] [2020-09-21 11:25:37,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:37,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:37,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399391336] [2020-09-21 11:25:37,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:37,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:37,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:37,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:37,848 INFO L87 Difference]: Start difference. First operand 475 states and 685 transitions. Second operand 5 states. [2020-09-21 11:25:39,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:39,253 INFO L93 Difference]: Finished difference Result 1389 states and 2043 transitions. [2020-09-21 11:25:39,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:39,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-09-21 11:25:39,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:39,262 INFO L225 Difference]: With dead ends: 1389 [2020-09-21 11:25:39,262 INFO L226 Difference]: Without dead ends: 920 [2020-09-21 11:25:39,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:39,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2020-09-21 11:25:39,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 767. [2020-09-21 11:25:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-09-21 11:25:39,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1125 transitions. [2020-09-21 11:25:39,328 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1125 transitions. Word has length 127 [2020-09-21 11:25:39,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:39,329 INFO L479 AbstractCegarLoop]: Abstraction has 767 states and 1125 transitions. [2020-09-21 11:25:39,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:39,329 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1125 transitions. [2020-09-21 11:25:39,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-09-21 11:25:39,336 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:39,336 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:39,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:25:39,337 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:39,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:39,338 INFO L82 PathProgramCache]: Analyzing trace with hash 2100707076, now seen corresponding path program 1 times [2020-09-21 11:25:39,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:39,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056774620] [2020-09-21 11:25:39,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:39,389 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:39,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:39,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:39,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:39,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 11:25:39,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:39,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:25:39,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:39,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:39,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:39,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:25:39,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:39,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:39,498 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:39,498 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:39,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:39,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:39,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:39,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:39,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:39,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:39,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:39,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:39,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:39,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:39,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:39,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:39,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:39,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:25:39,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:39,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:39,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:39,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:39,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:39,585 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:39,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056774620] [2020-09-21 11:25:39,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:25:39,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:25:39,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523083710] [2020-09-21 11:25:39,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:39,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:39,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:39,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:39,588 INFO L87 Difference]: Start difference. First operand 767 states and 1125 transitions. Second operand 8 states. [2020-09-21 11:25:40,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:40,597 INFO L93 Difference]: Finished difference Result 1391 states and 2094 transitions. [2020-09-21 11:25:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:25:40,597 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 134 [2020-09-21 11:25:40,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:40,602 INFO L225 Difference]: With dead ends: 1391 [2020-09-21 11:25:40,602 INFO L226 Difference]: Without dead ends: 630 [2020-09-21 11:25:40,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:25:40,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-09-21 11:25:40,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 609. [2020-09-21 11:25:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-09-21 11:25:40,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 837 transitions. [2020-09-21 11:25:40,635 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 837 transitions. Word has length 134 [2020-09-21 11:25:40,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:40,635 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 837 transitions. [2020-09-21 11:25:40,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:40,636 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 837 transitions. [2020-09-21 11:25:40,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-09-21 11:25:40,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:40,640 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:40,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:25:40,640 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:40,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:40,641 INFO L82 PathProgramCache]: Analyzing trace with hash 941790137, now seen corresponding path program 1 times [2020-09-21 11:25:40,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:40,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518959362] [2020-09-21 11:25:40,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:40,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:25:40,713 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -31 [2020-09-21 11:25:40,713 FATAL L256 erpolLogProxyWrapper]: Difference in width: 31 [2020-09-21 11:25:40,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:40,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-21 11:25:40,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:40,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:25:40,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-21 11:25:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-21 11:25:40,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:40,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:40,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:40,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:40,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:40,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:40,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:40,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:40,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:25:40,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:40,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:41,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:41,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:41,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:41,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:41,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:41,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 11:25:41,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:25:41,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:25:41,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:41,214 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:41,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518959362] [2020-09-21 11:25:41,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:41,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:41,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280256420] [2020-09-21 11:25:41,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:41,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:41,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:41,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:41,220 INFO L87 Difference]: Start difference. First operand 609 states and 837 transitions. Second operand 5 states. [2020-09-21 11:25:42,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:42,482 INFO L93 Difference]: Finished difference Result 1305 states and 1837 transitions. [2020-09-21 11:25:42,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:42,483 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-09-21 11:25:42,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:42,490 INFO L225 Difference]: With dead ends: 1305 [2020-09-21 11:25:42,490 INFO L226 Difference]: Without dead ends: 616 [2020-09-21 11:25:42,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:42,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-09-21 11:25:42,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 609. [2020-09-21 11:25:42,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-09-21 11:25:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 821 transitions. [2020-09-21 11:25:42,527 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 821 transitions. Word has length 145 [2020-09-21 11:25:42,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:42,528 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 821 transitions. [2020-09-21 11:25:42,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:42,528 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 821 transitions. [2020-09-21 11:25:42,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-21 11:25:42,532 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:42,533 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:42,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:25:42,533 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:42,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:42,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1156828607, now seen corresponding path program 1 times [2020-09-21 11:25:42,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:42,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679781984] [2020-09-21 11:25:42,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:42,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:42,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:42,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:42,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:42,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-09-21 11:25:42,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:42,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:25:42,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:42,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:25:42,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:42,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:42,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:42,691 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:42,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:42,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:42,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:42,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:42,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:42,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:42,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:42,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:42,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:42,742 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:42,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:42,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:42,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 11:25:42,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:42,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:25:42,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:42,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:42,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:42,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:25:42,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:42,807 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:42,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679781984] [2020-09-21 11:25:42,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:25:42,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:25:42,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711567503] [2020-09-21 11:25:42,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:42,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:42,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:42,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:42,810 INFO L87 Difference]: Start difference. First operand 609 states and 821 transitions. Second operand 8 states. [2020-09-21 11:25:44,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:44,602 INFO L93 Difference]: Finished difference Result 2129 states and 2980 transitions. [2020-09-21 11:25:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:25:44,603 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149 [2020-09-21 11:25:44,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:44,615 INFO L225 Difference]: With dead ends: 2129 [2020-09-21 11:25:44,616 INFO L226 Difference]: Without dead ends: 1526 [2020-09-21 11:25:44,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:25:44,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2020-09-21 11:25:44,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1367. [2020-09-21 11:25:44,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-09-21 11:25:44,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1789 transitions. [2020-09-21 11:25:44,682 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1789 transitions. Word has length 149 [2020-09-21 11:25:44,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:44,682 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 1789 transitions. [2020-09-21 11:25:44,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:44,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1789 transitions. [2020-09-21 11:25:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-21 11:25:44,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:44,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:44,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:25:44,690 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:44,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:44,690 INFO L82 PathProgramCache]: Analyzing trace with hash -286914379, now seen corresponding path program 1 times [2020-09-21 11:25:44,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:44,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780166331] [2020-09-21 11:25:44,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:44,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:25:44,742 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -14 [2020-09-21 11:25:44,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 14 [2020-09-21 11:25:44,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:44,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 11:25:44,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:44,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:25:44,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-21 11:25:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:25:44,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:44,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:44,859 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:44,859 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:44,860 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:44,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:44,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:44,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:44,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:44,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:44,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:44,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:44,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:44,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:44,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:44,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:44,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:44,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:44,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:44,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:25:44,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:44,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:44,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:44,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:44,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:25:44,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:44,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 11:25:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:44,925 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:44,926 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:44,926 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:44,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:44,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:25:44,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:44,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:25:44,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:44,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:44,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:44,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:25:44,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:44,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:25:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:44,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:44,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:44,981 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:44,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:44,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 11:25:44,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:44,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:44,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:44,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:44,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-21 11:25:44,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:44,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:45,072 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 47 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-21 11:25:45,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780166331] [2020-09-21 11:25:45,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:45,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:25:45,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640282298] [2020-09-21 11:25:45,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:45,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:45,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:45,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:45,077 INFO L87 Difference]: Start difference. First operand 1367 states and 1789 transitions. Second operand 8 states. [2020-09-21 11:25:47,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:47,112 INFO L93 Difference]: Finished difference Result 3190 states and 4271 transitions. [2020-09-21 11:25:47,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:25:47,113 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-21 11:25:47,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:47,123 INFO L225 Difference]: With dead ends: 3190 [2020-09-21 11:25:47,124 INFO L226 Difference]: Without dead ends: 1829 [2020-09-21 11:25:47,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:25:47,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2020-09-21 11:25:47,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1823. [2020-09-21 11:25:47,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1823 states. [2020-09-21 11:25:47,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 2385 transitions. [2020-09-21 11:25:47,197 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 2385 transitions. Word has length 166 [2020-09-21 11:25:47,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:47,198 INFO L479 AbstractCegarLoop]: Abstraction has 1823 states and 2385 transitions. [2020-09-21 11:25:47,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:47,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 2385 transitions. [2020-09-21 11:25:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-21 11:25:47,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:47,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:47,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:25:47,207 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:47,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:47,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1579818293, now seen corresponding path program 1 times [2020-09-21 11:25:47,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:47,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612701262] [2020-09-21 11:25:47,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:47,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:47,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:47,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:47,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:47,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-21 11:25:47,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:47,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:25:47,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:47,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:47,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:25:47,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:25:47,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:47,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:47,361 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:47,361 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:47,361 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:47,362 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:47,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:47,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:47,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:47,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:47,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:47,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:47,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:47,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:47,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:47,394 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:47,394 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:47,394 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:47,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:47,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:25:47,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:47,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:47,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:47,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:47,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:47,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:25:47,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:47,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:25:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:47,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:47,448 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:47,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:47,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:47,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:25:47,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:47,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:25:47,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:47,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:47,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:47,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:25:47,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:25:47,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:25:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:47,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:47,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:47,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:47,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:47,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 11:25:47,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:47,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:47,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:47,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:47,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-21 11:25:47,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:47,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:47,560 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 57 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-21 11:25:47,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612701262] [2020-09-21 11:25:47,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:47,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:47,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386114209] [2020-09-21 11:25:47,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:47,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:47,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:47,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:47,564 INFO L87 Difference]: Start difference. First operand 1823 states and 2385 transitions. Second operand 7 states. [2020-09-21 11:25:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:50,092 INFO L93 Difference]: Finished difference Result 5756 states and 8041 transitions. [2020-09-21 11:25:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:25:50,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-09-21 11:25:50,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:50,093 INFO L225 Difference]: With dead ends: 5756 [2020-09-21 11:25:50,093 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:25:50,111 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 11:25:50,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:25:50,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:25:50,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:25:50,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:25:50,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2020-09-21 11:25:50,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:50,112 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:25:50,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:50,113 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:25:50,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:25:50,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:25:50,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:25:51,854 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 108 [2020-09-21 11:25:52,112 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 108 [2020-09-21 11:25:52,760 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 50 [2020-09-21 11:25:53,062 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 36 [2020-09-21 11:25:53,317 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 36 [2020-09-21 11:25:53,321 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:25:53,321 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 11:25:53,321 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:25:53,322 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,322 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,322 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,322 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,322 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,322 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-09-21 11:25:53,322 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-09-21 11:25:53,323 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-21 11:25:53,323 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-09-21 11:25:53,323 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-09-21 11:25:53,323 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-09-21 11:25:53,323 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-09-21 11:25:53,323 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-09-21 11:25:53,323 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-09-21 11:25:53,324 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-09-21 11:25:53,324 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-09-21 11:25:53,324 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-09-21 11:25:53,324 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-09-21 11:25:53,324 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,324 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,324 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,324 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,324 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-09-21 11:25:53,324 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,324 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-09-21 11:25:53,325 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-09-21 11:25:53,325 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-09-21 11:25:53,325 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-09-21 11:25:53,325 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-09-21 11:25:53,325 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-09-21 11:25:53,325 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-09-21 11:25:53,325 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-09-21 11:25:53,325 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-09-21 11:25:53,325 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-09-21 11:25:53,326 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-09-21 11:25:53,326 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-09-21 11:25:53,326 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-09-21 11:25:53,326 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-09-21 11:25:53,326 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-09-21 11:25:53,326 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,326 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,326 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,327 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,327 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,327 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 511) no Hoare annotation was computed. [2020-09-21 11:25:53,327 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-09-21 11:25:53,327 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-09-21 11:25:53,327 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-09-21 11:25:53,327 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-21 11:25:53,328 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-09-21 11:25:53,328 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-09-21 11:25:53,328 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-09-21 11:25:53,328 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-09-21 11:25:53,328 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-09-21 11:25:53,328 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-09-21 11:25:53,328 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-09-21 11:25:53,328 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,329 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,329 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,329 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,329 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,329 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-09-21 11:25:53,329 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-09-21 11:25:53,329 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-09-21 11:25:53,329 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-09-21 11:25:53,330 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-09-21 11:25:53,330 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-09-21 11:25:53,330 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-09-21 11:25:53,330 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-09-21 11:25:53,330 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-09-21 11:25:53,330 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-09-21 11:25:53,330 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-09-21 11:25:53,331 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-09-21 11:25:53,331 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-09-21 11:25:53,331 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,331 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,331 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,331 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,331 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,332 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-09-21 11:25:53,332 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-21 11:25:53,332 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-09-21 11:25:53,332 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-09-21 11:25:53,332 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-09-21 11:25:53,332 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-09-21 11:25:53,332 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-09-21 11:25:53,332 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-09-21 11:25:53,333 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-09-21 11:25:53,333 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-09-21 11:25:53,333 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-09-21 11:25:53,333 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-09-21 11:25:53,333 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-09-21 11:25:53,333 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-09-21 11:25:53,333 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-09-21 11:25:53,333 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-09-21 11:25:53,334 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,334 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,334 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,334 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,334 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-09-21 11:25:53,334 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,334 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-09-21 11:25:53,335 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,335 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-09-21 11:25:53,335 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-09-21 11:25:53,335 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-09-21 11:25:53,335 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,335 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,335 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-09-21 11:25:53,335 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-09-21 11:25:53,336 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-09-21 11:25:53,336 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-09-21 11:25:53,336 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-09-21 11:25:53,336 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-09-21 11:25:53,336 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-09-21 11:25:53,336 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-09-21 11:25:53,336 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-09-21 11:25:53,336 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-09-21 11:25:53,337 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-09-21 11:25:53,337 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,337 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,337 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,337 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,337 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,337 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,338 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-09-21 11:25:53,338 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-09-21 11:25:53,338 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-09-21 11:25:53,338 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-09-21 11:25:53,338 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-09-21 11:25:53,338 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-09-21 11:25:53,338 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-09-21 11:25:53,339 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-09-21 11:25:53,339 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-09-21 11:25:53,339 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-09-21 11:25:53,339 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-09-21 11:25:53,339 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,339 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,339 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,339 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,339 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,340 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,340 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-09-21 11:25:53,340 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-09-21 11:25:53,340 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-09-21 11:25:53,340 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-09-21 11:25:53,340 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-09-21 11:25:53,340 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-09-21 11:25:53,340 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-09-21 11:25:53,341 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-09-21 11:25:53,341 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-09-21 11:25:53,341 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-09-21 11:25:53,341 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-09-21 11:25:53,341 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-09-21 11:25:53,341 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-09-21 11:25:53,341 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-09-21 11:25:53,341 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,342 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,342 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,342 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse1 (= ~a28~0 |old(~a28~0)|)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse3 (= ~a25~0 |old(~a25~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|))) (let ((.cse0 (not (<= |old(~a17~0)| 8))) (.cse5 (and .cse1 (= ~a17~0 |old(~a17~0)|) .cse2 .cse3 .cse4))) (and (or .cse0 (not (<= 8 |old(~a17~0)|)) (and .cse1 .cse2 .cse3 (<= 8 ~a17~0) (<= ~a17~0 8) .cse4)) (or (= |old(~a19~0)| 1) .cse0 .cse5) (or (and (= 7 ~a17~0) .cse2 (= 7 ~a28~0) (= ~a25~0 1) .cse4) (not (= |old(~a25~0)| 1)) (not (= 7 |old(~a17~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| 1))) (or .cse0 .cse5 (not (<= |old(~a25~0)| 0)))))) [2020-09-21 11:25:53,342 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,342 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,343 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,343 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-09-21 11:25:53,343 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-09-21 11:25:53,343 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-09-21 11:25:53,343 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-09-21 11:25:53,343 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-09-21 11:25:53,343 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-09-21 11:25:53,344 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-09-21 11:25:53,344 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-09-21 11:25:53,344 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-09-21 11:25:53,344 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-09-21 11:25:53,344 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-09-21 11:25:53,344 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-09-21 11:25:53,344 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-09-21 11:25:53,344 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,345 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,345 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,345 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,345 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,345 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,345 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-09-21 11:25:53,345 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-09-21 11:25:53,345 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-09-21 11:25:53,346 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-09-21 11:25:53,346 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-09-21 11:25:53,346 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-09-21 11:25:53,346 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-09-21 11:25:53,346 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-09-21 11:25:53,346 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-09-21 11:25:53,346 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-09-21 11:25:53,346 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-09-21 11:25:53,347 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-09-21 11:25:53,347 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-09-21 11:25:53,347 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-09-21 11:25:53,347 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-09-21 11:25:53,347 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-09-21 11:25:53,347 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,347 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,347 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,348 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,348 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:25:53,348 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-09-21 11:25:53,348 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-09-21 11:25:53,348 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-09-21 11:25:53,348 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-09-21 11:25:53,348 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-21 11:25:53,348 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-09-21 11:25:53,349 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-09-21 11:25:53,349 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-09-21 11:25:53,349 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-09-21 11:25:53,349 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-09-21 11:25:53,349 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-09-21 11:25:53,349 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-09-21 11:25:53,349 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-09-21 11:25:53,349 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-09-21 11:25:53,350 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-09-21 11:25:53,350 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-09-21 11:25:53,350 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-09-21 11:25:53,350 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-09-21 11:25:53,350 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-09-21 11:25:53,350 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:25:53,350 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 8 ~a17~0) (<= ~a28~0 7) (<= ~a17~0 8) (<= ~a25~0 0)) [2020-09-21 11:25:53,351 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:25:53,351 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:25:53,351 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (<= 8 ~a17~0) (<= ~a17~0 8) (= ~a19~0 |old(~a19~0)|))) [2020-09-21 11:25:53,351 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and (<= 8 ~a17~0) .cse0) (not (<= 8 |old(~a17~0)|)) (and (= 7 ~a17~0) (= ~a21~0 1) (= 7 ~a28~0) (= ~a25~0 1) (= ~a11~0 1)) (not (<= |old(~a25~0)| 0)) (and .cse0 (<= ~a25~0 0)) (and (not (= ~a19~0 1)) .cse0))) [2020-09-21 11:25:53,351 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-09-21 11:25:53,352 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-09-21 11:25:53,352 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and (<= 8 ~a17~0) .cse0) (not (<= 8 |old(~a17~0)|)) (and (= 7 ~a17~0) (= ~a21~0 1) (= 7 ~a28~0) (= ~a25~0 1) (= ~a11~0 1)) (not (<= |old(~a25~0)| 0)) (and .cse0 (<= ~a25~0 0)) (and (not (= ~a19~0 1)) .cse0))) [2020-09-21 11:25:53,352 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-09-21 11:25:53,352 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-09-21 11:25:53,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:25:53 BoogieIcfgContainer [2020-09-21 11:25:53,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:25:53,379 INFO L168 Benchmark]: Toolchain (without parser) took 22057.35 ms. Allocated memory was 146.8 MB in the beginning and 470.3 MB in the end (delta: 323.5 MB). Free memory was 101.5 MB in the beginning and 297.2 MB in the end (delta: -195.7 MB). Peak memory consumption was 336.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:53,380 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:25:53,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 870.92 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 100.9 MB in the beginning and 171.4 MB in the end (delta: -70.5 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:53,382 INFO L168 Benchmark]: Boogie Preprocessor took 141.12 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:53,383 INFO L168 Benchmark]: RCFGBuilder took 1416.28 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 166.6 MB in the beginning and 180.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:53,384 INFO L168 Benchmark]: TraceAbstraction took 19614.46 ms. Allocated memory was 236.5 MB in the beginning and 470.3 MB in the end (delta: 233.8 MB). Free memory was 178.6 MB in the beginning and 297.2 MB in the end (delta: -118.6 MB). Peak memory consumption was 324.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:53,389 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 870.92 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 100.9 MB in the beginning and 171.4 MB in the end (delta: -70.5 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.12 ms. Allocated memory is still 205.0 MB. Free memory was 171.4 MB in the beginning and 166.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1416.28 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 166.6 MB in the beginning and 180.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19614.46 ms. Allocated memory was 236.5 MB in the beginning and 470.3 MB in the end (delta: 233.8 MB). Free memory was 178.6 MB in the beginning and 297.2 MB in the end (delta: -118.6 MB). Peak memory consumption was 324.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 511]: 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) || !(\old(a17) <= 8)) || (8 <= a17 && a17 <= 8)) || !(8 <= \old(a17))) || ((((7 == a17 && a21 == 1) && 7 == a28) && a25 == 1) && a11 == 1)) || !(\old(a25) <= 0)) || (a17 <= 8 && a25 <= 0)) || (!(a19 == 1) && a17 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.2s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 265 SDtfs, 4115 SDslu, 324 SDs, 0 SdLazy, 6072 SolverSat, 1167 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1823occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 365 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 90 PreInvPairs, 182 NumberOfFragments, 327 HoareAnnotationTreeSize, 90 FomulaSimplifications, 124447 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3360 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1018 NumberOfCodeBlocks, 1018 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1011 ConstructedInterpolants, 0 QuantifiedInterpolants, 549652 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 197/213 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...