/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:08:01,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:08:01,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:08:01,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:08:01,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:08:01,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:08:01,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:08:01,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:08:01,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:08:01,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:08:01,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:08:01,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:08:01,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:08:01,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:08:01,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:08:01,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:08:01,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:08:01,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:08:01,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:08:01,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:08:01,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:08:01,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:08:01,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:08:01,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:08:01,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:08:01,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:08:01,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:08:01,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:08:01,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 22:08:01,763 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:08:01,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:08:01,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:08:01,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:08:01,765 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:08:01,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:08:01,766 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:08:01,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:08:01,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:08:01,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:08:01,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:08:01,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:08:01,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:08:01,767 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:08:01,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:08:01,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:08:01,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:08:01,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:08:01,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:08:01,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:08:01,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:08:01,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:08:01,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:08:01,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:08:01,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:08:01,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:08:01,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:01,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:08:01,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:08:01,770 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 22:08:02,044 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:08:02,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:08:02,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:08:02,073 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:08:02,076 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:08:02,077 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-20 22:08:02,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a464bb1/1289b1ca35f14185a72d97d54b9364bc/FLAGe6c2e8231 [2020-07-20 22:08:02,790 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:08:02,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-20 22:08:02,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a464bb1/1289b1ca35f14185a72d97d54b9364bc/FLAGe6c2e8231 [2020-07-20 22:08:03,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a464bb1/1289b1ca35f14185a72d97d54b9364bc [2020-07-20 22:08:03,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:08:03,034 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:08:03,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:08:03,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:08:03,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:08:03,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:08:03" (1/1) ... [2020-07-20 22:08:03,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca3bae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:08:03, skipping insertion in model container [2020-07-20 22:08:03,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:08:03" (1/1) ... [2020-07-20 22:08:03,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:08:03,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:08:03,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:08:03,531 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:08:03,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:08:03,771 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:08:03,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:08:03 WrapperNode [2020-07-20 22:08:03,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:08:03,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:08:03,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:08:03,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:08:03,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:08:03" (1/1) ... [2020-07-20 22:08:03,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:08:03" (1/1) ... [2020-07-20 22:08:03,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:08:03" (1/1) ... [2020-07-20 22:08:03,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:08:03" (1/1) ... [2020-07-20 22:08:03,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:08:03" (1/1) ... [2020-07-20 22:08:03,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:08:03" (1/1) ... [2020-07-20 22:08:03,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:08:03" (1/1) ... [2020-07-20 22:08:03,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:08:03,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:08:03,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:08:03,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:08:03,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:08:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-20 22:08:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:08:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:08:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:08:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:08:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:08:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:08:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:08:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:08:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:08:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:08:03,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:08:05,301 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:08:05,301 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:08:05,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:08:05 BoogieIcfgContainer [2020-07-20 22:08:05,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:08:05,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:08:05,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:08:05,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:08:05,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:08:03" (1/3) ... [2020-07-20 22:08:05,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6029c9cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:08:05, skipping insertion in model container [2020-07-20 22:08:05,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:08:03" (2/3) ... [2020-07-20 22:08:05,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6029c9cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:08:05, skipping insertion in model container [2020-07-20 22:08:05,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:08:05" (3/3) ... [2020-07-20 22:08:05,326 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2020-07-20 22:08:05,338 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:08:05,350 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:08:05,366 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:08:05,399 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:08:05,400 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:08:05,400 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:08:05,400 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:08:05,401 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:08:05,401 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:08:05,401 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:08:05,401 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:08:05,429 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 22:08:05,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 22:08:05,444 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:08:05,446 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] [2020-07-20 22:08:05,446 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:08:05,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:08:05,454 INFO L82 PathProgramCache]: Analyzing trace with hash -689906609, now seen corresponding path program 1 times [2020-07-20 22:08:05,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:08:05,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199041689] [2020-07-20 22:08:05,465 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:05,600 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:08:05,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:08:05,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:08:05,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:08:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:08:05,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:08:05,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199041689] [2020-07-20 22:08:05,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:08:05,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:08:05,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548640542] [2020-07-20 22:08:05,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:08:05,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:08:05,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:08:05,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:08:05,717 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 22:08:06,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:08:06,757 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 22:08:06,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:08:06,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-20 22:08:06,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:08:06,795 INFO L225 Difference]: With dead ends: 586 [2020-07-20 22:08:06,795 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 22:08:06,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:08:06,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 22:08:06,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 22:08:06,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 22:08:06,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-20 22:08:06,927 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 56 [2020-07-20 22:08:06,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:08:06,928 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-20 22:08:06,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:08:06,928 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-20 22:08:06,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-20 22:08:06,947 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:08:06,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 22:08:07,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:07,162 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:08:07,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:08:07,163 INFO L82 PathProgramCache]: Analyzing trace with hash 371731122, now seen corresponding path program 1 times [2020-07-20 22:08:07,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:08:07,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688147874] [2020-07-20 22:08:07,165 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:07,269 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:08:07,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:08:07,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:08:07,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:08:07,312 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:08:07,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:08:07,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688147874] [2020-07-20 22:08:07,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:08:07,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:08:07,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495405509] [2020-07-20 22:08:07,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:08:07,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:08:07,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:08:07,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:08:07,317 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-20 22:08:08,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:08:08,012 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-20 22:08:08,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:08:08,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-20 22:08:08,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:08:08,017 INFO L225 Difference]: With dead ends: 868 [2020-07-20 22:08:08,018 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 22:08:08,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:08:08,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 22:08:08,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 437. [2020-07-20 22:08:08,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 22:08:08,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-20 22:08:08,045 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 126 [2020-07-20 22:08:08,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:08:08,048 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-20 22:08:08,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:08:08,053 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-20 22:08:08,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 22:08:08,056 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:08:08,056 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 22:08:08,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:08,258 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:08:08,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:08:08,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1345148817, now seen corresponding path program 1 times [2020-07-20 22:08:08,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:08:08,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658906877] [2020-07-20 22:08:08,260 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:08,347 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:08:08,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:08:08,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:08:08,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:08:08,395 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:08:08,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:08:08,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658906877] [2020-07-20 22:08:08,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:08:08,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:08:08,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132027784] [2020-07-20 22:08:08,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:08:08,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:08:08,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:08:08,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:08:08,409 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-20 22:08:09,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:08:09,141 INFO L93 Difference]: Finished difference Result 868 states and 1308 transitions. [2020-07-20 22:08:09,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:08:09,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-20 22:08:09,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:08:09,147 INFO L225 Difference]: With dead ends: 868 [2020-07-20 22:08:09,148 INFO L226 Difference]: Without dead ends: 866 [2020-07-20 22:08:09,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:08:09,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-20 22:08:09,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 437. [2020-07-20 22:08:09,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 22:08:09,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-20 22:08:09,179 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 133 [2020-07-20 22:08:09,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:08:09,180 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-20 22:08:09,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:08:09,181 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-20 22:08:09,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-20 22:08:09,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:08:09,183 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 22:08:09,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:09,397 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:08:09,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:08:09,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1734171087, now seen corresponding path program 1 times [2020-07-20 22:08:09,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:08:09,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795055218] [2020-07-20 22:08:09,399 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:09,513 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:08:09,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:08:09,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:08:09,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:08:09,639 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:08:09,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:08:09,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795055218] [2020-07-20 22:08:09,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:08:09,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:08:09,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780024182] [2020-07-20 22:08:09,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:08:09,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:08:09,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:08:09,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:08:09,644 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-20 22:08:10,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:08:10,351 INFO L93 Difference]: Finished difference Result 1154 states and 1745 transitions. [2020-07-20 22:08:10,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:08:10,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-07-20 22:08:10,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:08:10,360 INFO L225 Difference]: With dead ends: 1154 [2020-07-20 22:08:10,360 INFO L226 Difference]: Without dead ends: 723 [2020-07-20 22:08:10,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:08:10,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-07-20 22:08:10,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 580. [2020-07-20 22:08:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-20 22:08:10,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 811 transitions. [2020-07-20 22:08:10,390 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 811 transitions. Word has length 181 [2020-07-20 22:08:10,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:08:10,391 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 811 transitions. [2020-07-20 22:08:10,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:08:10,391 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 811 transitions. [2020-07-20 22:08:10,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-20 22:08:10,395 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:08:10,395 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:08:10,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:10,609 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:08:10,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:08:10,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1895595301, now seen corresponding path program 1 times [2020-07-20 22:08:10,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:08:10,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854501088] [2020-07-20 22:08:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:10,762 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:08:10,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:08:10,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:08:10,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:08:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-20 22:08:10,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:08:10,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854501088] [2020-07-20 22:08:10,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:08:10,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:08:10,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202300301] [2020-07-20 22:08:10,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:08:10,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:08:10,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:08:10,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:08:10,869 INFO L87 Difference]: Start difference. First operand 580 states and 811 transitions. Second operand 3 states. [2020-07-20 22:08:11,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:08:11,580 INFO L93 Difference]: Finished difference Result 1438 states and 1983 transitions. [2020-07-20 22:08:11,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:08:11,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2020-07-20 22:08:11,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:08:11,585 INFO L225 Difference]: With dead ends: 1438 [2020-07-20 22:08:11,585 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:08:11,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:08:11,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:08:11,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:08:11,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:08:11,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:08:11,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 252 [2020-07-20 22:08:11,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:08:11,589 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:08:11,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:08:11,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:08:11,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:08:11,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:11,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:08:12,055 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:08:12,056 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:08:12,056 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:08:12,056 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 22:08:12,056 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,056 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,056 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,056 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,057 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,057 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,057 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 22:08:12,057 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 22:08:12,057 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 22:08:12,057 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 22:08:12,057 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 22:08:12,058 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 22:08:12,058 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 22:08:12,058 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 22:08:12,058 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 22:08:12,058 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 22:08:12,058 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 22:08:12,058 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,059 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,059 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,059 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,059 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,059 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 22:08:12,059 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 22:08:12,059 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 22:08:12,060 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 22:08:12,060 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 22:08:12,060 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 22:08:12,060 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 22:08:12,060 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 22:08:12,060 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 22:08:12,060 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 22:08:12,061 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 22:08:12,061 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 22:08:12,061 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 22:08:12,061 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-20 22:08:12,061 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 22:08:12,061 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,061 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,062 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,062 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,062 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,062 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 22:08:12,062 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 22:08:12,062 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 22:08:12,062 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 22:08:12,063 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 22:08:12,063 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 22:08:12,063 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 22:08:12,063 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 22:08:12,063 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 22:08:12,063 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 22:08:12,064 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,064 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,064 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,064 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,064 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,064 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 22:08:12,065 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 22:08:12,065 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 22:08:12,065 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 22:08:12,065 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 22:08:12,065 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 22:08:12,065 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 22:08:12,066 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 22:08:12,066 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 22:08:12,066 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 22:08:12,066 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 22:08:12,066 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 22:08:12,066 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 22:08:12,066 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,067 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,067 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,067 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,067 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,067 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 22:08:12,067 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 22:08:12,067 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 22:08:12,068 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 22:08:12,068 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 22:08:12,068 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 22:08:12,068 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 22:08:12,068 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 22:08:12,068 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 22:08:12,069 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,069 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,069 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,069 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,069 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,069 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,069 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,070 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 22:08:12,070 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 22:08:12,070 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 22:08:12,070 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 22:08:12,070 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 22:08:12,070 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 22:08:12,071 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 22:08:12,071 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 22:08:12,071 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 22:08:12,071 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 22:08:12,071 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 22:08:12,071 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 22:08:12,071 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 22:08:12,072 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,072 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,072 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,072 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,072 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 22:08:12,073 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,073 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,073 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 22:08:12,073 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 22:08:12,073 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 22:08:12,073 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 22:08:12,073 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 22:08:12,074 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 22:08:12,074 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 22:08:12,074 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 22:08:12,074 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 22:08:12,074 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 22:08:12,074 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 22:08:12,074 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 22:08:12,075 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 22:08:12,075 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,075 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,075 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,075 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,076 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,076 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,076 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 22:08:12,076 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 22:08:12,076 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 22:08:12,076 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 22:08:12,076 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 22:08:12,077 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 22:08:12,077 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 22:08:12,077 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 22:08:12,077 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 22:08:12,077 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 22:08:12,077 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 22:08:12,078 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (and (or (not (<= |old(~a19~0)| 6)) (<= ~a19~0 6)) (or (not (<= 4 |old(~a10~0)|)) (<= 4 ~a10~0)) (or (<= ~a10~0 2) (not (<= |old(~a10~0)| 2))) (or (<= 9 ~a19~0) (<= 23 ~a1~0) (and (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|))))) [2020-07-20 22:08:12,078 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 22:08:12,078 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 22:08:12,078 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 22:08:12,078 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,079 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,079 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,079 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,079 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,079 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,079 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 22:08:12,079 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 22:08:12,080 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 22:08:12,080 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 22:08:12,080 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 22:08:12,080 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 22:08:12,080 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 22:08:12,080 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 22:08:12,080 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 22:08:12,081 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 22:08:12,081 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 22:08:12,081 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 22:08:12,081 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 22:08:12,081 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,081 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,081 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,082 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,082 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,082 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,082 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 22:08:12,082 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 22:08:12,082 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 22:08:12,082 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 22:08:12,083 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 22:08:12,083 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 22:08:12,083 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 22:08:12,083 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 22:08:12,083 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 22:08:12,083 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 22:08:12,083 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 22:08:12,084 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 22:08:12,084 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,084 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,084 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,084 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,084 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,084 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:12,085 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 22:08:12,085 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 22:08:12,085 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 22:08:12,085 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 22:08:12,085 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 22:08:12,085 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 22:08:12,085 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 22:08:12,085 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 22:08:12,085 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 22:08:12,086 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 22:08:12,086 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 22:08:12,086 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 22:08:12,086 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:08:12,086 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 9 ~a19~0) (<= ~a10~0 2) (<= 23 ~a1~0)) [2020-07-20 22:08:12,086 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:08:12,086 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:08:12,087 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 2) (<= 23 ~a1~0)) (not (<= |old(~a10~0)| 2))) [2020-07-20 22:08:12,087 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 22:08:12,087 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (<= 9 ~a19~0) (not (<= 23 |old(~a1~0)|)) (<= ~a19~0 6) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (<= 23 ~a1~0) (<= 4 ~a10~0) (not (<= |old(~a10~0)| 2))) [2020-07-20 22:08:12,087 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 22:08:12,087 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 22:08:12,087 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (<= 9 ~a19~0) (not (<= 23 |old(~a1~0)|)) (<= ~a19~0 6) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (<= 23 ~a1~0) (<= 4 ~a10~0) (not (<= |old(~a10~0)| 2))) [2020-07-20 22:08:12,087 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 22:08:12,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:08:12 BoogieIcfgContainer [2020-07-20 22:08:12,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:08:12,109 INFO L168 Benchmark]: Toolchain (without parser) took 9076.02 ms. Allocated memory was 145.2 MB in the beginning and 326.6 MB in the end (delta: 181.4 MB). Free memory was 101.2 MB in the beginning and 99.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 183.2 MB. Max. memory is 7.1 GB. [2020-07-20 22:08:12,110 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 22:08:12,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.79 ms. Allocated memory was 145.2 MB in the beginning and 206.0 MB in the end (delta: 60.8 MB). Free memory was 100.8 MB in the beginning and 172.6 MB in the end (delta: -71.8 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2020-07-20 22:08:12,112 INFO L168 Benchmark]: Boogie Preprocessor took 97.13 ms. Allocated memory is still 206.0 MB. Free memory was 171.9 MB in the beginning and 167.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-20 22:08:12,113 INFO L168 Benchmark]: RCFGBuilder took 1444.11 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 167.7 MB in the beginning and 184.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2020-07-20 22:08:12,114 INFO L168 Benchmark]: TraceAbstraction took 6790.53 ms. Allocated memory was 238.6 MB in the beginning and 326.6 MB in the end (delta: 88.1 MB). Free memory was 184.1 MB in the beginning and 99.4 MB in the end (delta: 84.6 MB). Peak memory consumption was 172.7 MB. Max. memory is 7.1 GB. [2020-07-20 22:08:12,118 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.79 ms. Allocated memory was 145.2 MB in the beginning and 206.0 MB in the end (delta: 60.8 MB). Free memory was 100.8 MB in the beginning and 172.6 MB in the end (delta: -71.8 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.13 ms. Allocated memory is still 206.0 MB. Free memory was 171.9 MB in the beginning and 167.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1444.11 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 167.7 MB in the beginning and 184.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6790.53 ms. Allocated memory was 238.6 MB in the beginning and 326.6 MB in the end (delta: 88.1 MB). Free memory was 184.1 MB in the beginning and 99.4 MB in the end (delta: 84.6 MB). Peak memory consumption was 172.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: 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: 582]: Loop Invariant Derived loop invariant: ((((((9 <= a19 || !(23 <= \old(a1))) || a19 <= 6) || !(9 <= \old(a19))) || a10 <= 2) || 23 <= a1) || 4 <= a10) || !(\old(a10) <= 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 554 SDtfs, 591 SDslu, 60 SDs, 0 SdLazy, 1878 SolverSat, 438 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 743 GetRequests, 738 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=580occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 715 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 22 PreInvPairs, 34 NumberOfFragments, 132 HoareAnnotationTreeSize, 22 FomulaSimplifications, 297 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 147 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 748 NumberOfCodeBlocks, 748 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 743 ConstructedInterpolants, 0 QuantifiedInterpolants, 208857 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1427 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 322/322 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...