/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/Problem02_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:03:21,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:03:21,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:03:21,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:03:21,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:03:21,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:03:21,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:03:21,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:03:21,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:03:21,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:03:21,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:03:21,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:03:21,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:03:21,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:03:21,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:03:21,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:03:21,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:03:21,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:03:21,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:03:21,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:03:21,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:03:21,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:03:21,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:03:21,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:03:21,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:03:21,708 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 22:03:21,735 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:03:21,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:03:21,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:03:21,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:03:21,739 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:03:21,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:03:21,739 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:03:21,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:03:21,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:03:21,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:03:21,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:03:21,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:03:21,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:03:21,742 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:03:21,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:03:21,742 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:03:21,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:03:21,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:03:21,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:03:21,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:03:21,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:03:21,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:03:21,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:03:21,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:03:21,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:03:21,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:03:21,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:03:21,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:03:21,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:03:21,745 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 22:03:22,040 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:03:22,053 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:03:22,057 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:03:22,059 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:03:22,059 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:03:22,060 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label11.c [2020-07-20 22:03:22,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05bbe45b8/6171d0b5a36b4a53ac5c6dd00bbdda63/FLAG4f3419bd3 [2020-07-20 22:03:22,757 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:03:22,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label11.c [2020-07-20 22:03:22,774 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05bbe45b8/6171d0b5a36b4a53ac5c6dd00bbdda63/FLAG4f3419bd3 [2020-07-20 22:03:23,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05bbe45b8/6171d0b5a36b4a53ac5c6dd00bbdda63 [2020-07-20 22:03:23,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:03:23,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:03:23,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:03:23,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:03:23,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:03:23,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:03:23" (1/1) ... [2020-07-20 22:03:23,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e96d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:03:23, skipping insertion in model container [2020-07-20 22:03:23,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:03:23" (1/1) ... [2020-07-20 22:03:23,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:03:23,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:03:23,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:03:23,520 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:03:23,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:03:23,777 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:03:23,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:03:23 WrapperNode [2020-07-20 22:03:23,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:03:23,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:03:23,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:03:23,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:03:23,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:03:23" (1/1) ... [2020-07-20 22:03:23,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:03:23" (1/1) ... [2020-07-20 22:03:23,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:03:23" (1/1) ... [2020-07-20 22:03:23,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:03:23" (1/1) ... [2020-07-20 22:03:23,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:03:23" (1/1) ... [2020-07-20 22:03:23,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:03:23" (1/1) ... [2020-07-20 22:03:23,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:03:23" (1/1) ... [2020-07-20 22:03:23,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:03:23,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:03:23,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:03:23,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:03:23,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:03:23" (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 22:03:24,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:03:24,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:03:24,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:03:24,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:03:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:03:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:03:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:03:24,003 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:03:24,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:03:24,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:03:24,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:03:25,236 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:03:25,236 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:03:25,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:03:25 BoogieIcfgContainer [2020-07-20 22:03:25,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:03:25,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:03:25,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:03:25,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:03:25,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:03:23" (1/3) ... [2020-07-20 22:03:25,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fab7593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:03:25, skipping insertion in model container [2020-07-20 22:03:25,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:03:23" (2/3) ... [2020-07-20 22:03:25,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fab7593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:03:25, skipping insertion in model container [2020-07-20 22:03:25,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:03:25" (3/3) ... [2020-07-20 22:03:25,264 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label11.c [2020-07-20 22:03:25,278 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:03:25,294 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:03:25,313 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:03:25,350 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:03:25,351 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:03:25,351 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:03:25,351 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:03:25,351 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:03:25,352 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:03:25,352 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:03:25,352 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:03:25,382 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 22:03:25,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-07-20 22:03:25,400 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:03:25,401 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] [2020-07-20 22:03:25,402 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:03:25,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:03:25,409 INFO L82 PathProgramCache]: Analyzing trace with hash 341704158, now seen corresponding path program 1 times [2020-07-20 22:03:25,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:03:25,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856405041] [2020-07-20 22:03:25,420 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 22:03:25,605 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:03:25,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:03:25,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:03:25,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:03:25,718 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 22:03:25,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:03:25,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856405041] [2020-07-20 22:03:25,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:03:25,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:03:25,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5303689] [2020-07-20 22:03:25,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:03:25,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:03:25,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:03:25,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:03:25,747 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 22:03:26,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:03:26,848 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 22:03:26,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:03:26,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-07-20 22:03:26,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:03:26,891 INFO L225 Difference]: With dead ends: 615 [2020-07-20 22:03:26,891 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 22:03:26,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 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 22:03:26,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 22:03:27,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 22:03:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 22:03:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 22:03:27,060 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 114 [2020-07-20 22:03:27,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:03:27,062 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 22:03:27,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:03:27,063 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 22:03:27,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 22:03:27,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:03:27,075 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] [2020-07-20 22:03:27,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:03:27,291 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:03:27,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:03:27,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2131456323, now seen corresponding path program 1 times [2020-07-20 22:03:27,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:03:27,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90497995] [2020-07-20 22:03:27,294 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 22:03:27,429 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:03:27,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:03:27,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:03:27,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:03:27,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:03:27,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:03:27,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90497995] [2020-07-20 22:03:27,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:03:27,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:03:27,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732639323] [2020-07-20 22:03:27,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:03:27,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:03:27,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:03:27,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:03:27,500 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-20 22:03:28,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:03:28,136 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-20 22:03:28,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:03:28,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-20 22:03:28,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:03:28,142 INFO L225 Difference]: With dead ends: 919 [2020-07-20 22:03:28,142 INFO L226 Difference]: Without dead ends: 608 [2020-07-20 22:03:28,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 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 22:03:28,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-20 22:03:28,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-20 22:03:28,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-20 22:03:28,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-20 22:03:28,171 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 129 [2020-07-20 22:03:28,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:03:28,172 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-20 22:03:28,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:03:28,172 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-20 22:03:28,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-20 22:03:28,175 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:03:28,176 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-20 22:03:28,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:03:28,391 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:03:28,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:03:28,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2078659318, now seen corresponding path program 1 times [2020-07-20 22:03:28,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:03:28,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813088173] [2020-07-20 22:03:28,395 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 22:03:28,552 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:03:28,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:03:28,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:03:28,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:03:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:03:28,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:03:28,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813088173] [2020-07-20 22:03:28,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:03:28,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:03:28,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814812613] [2020-07-20 22:03:28,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:03:28,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:03:28,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:03:28,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:03:28,635 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-20 22:03:29,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:03:29,284 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions. [2020-07-20 22:03:29,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:03:29,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2020-07-20 22:03:29,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:03:29,292 INFO L225 Difference]: With dead ends: 1209 [2020-07-20 22:03:29,292 INFO L226 Difference]: Without dead ends: 753 [2020-07-20 22:03:29,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 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 22:03:29,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-07-20 22:03:29,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609. [2020-07-20 22:03:29,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-20 22:03:29,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions. [2020-07-20 22:03:29,333 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 136 [2020-07-20 22:03:29,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:03:29,334 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions. [2020-07-20 22:03:29,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:03:29,335 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions. [2020-07-20 22:03:29,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-20 22:03:29,343 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:03:29,343 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:03:29,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:03:29,545 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:03:29,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:03:29,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2119188334, now seen corresponding path program 1 times [2020-07-20 22:03:29,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:03:29,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990213171] [2020-07-20 22:03:29,547 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 22:03:29,652 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:03:29,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:03:29,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:03:29,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:03:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:03:29,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:03:29,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990213171] [2020-07-20 22:03:29,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:03:29,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:03:29,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807441571] [2020-07-20 22:03:29,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:03:29,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:03:29,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:03:29,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:03:29,741 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 3 states. [2020-07-20 22:03:30,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:03:30,390 INFO L93 Difference]: Finished difference Result 1505 states and 2105 transitions. [2020-07-20 22:03:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:03:30,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-07-20 22:03:30,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:03:30,397 INFO L225 Difference]: With dead ends: 1505 [2020-07-20 22:03:30,397 INFO L226 Difference]: Without dead ends: 902 [2020-07-20 22:03:30,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 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 22:03:30,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-07-20 22:03:30,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 756. [2020-07-20 22:03:30,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-07-20 22:03:30,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 988 transitions. [2020-07-20 22:03:30,423 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 988 transitions. Word has length 140 [2020-07-20 22:03:30,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:03:30,424 INFO L479 AbstractCegarLoop]: Abstraction has 756 states and 988 transitions. [2020-07-20 22:03:30,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:03:30,425 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 988 transitions. [2020-07-20 22:03:30,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-20 22:03:30,428 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:03:30,428 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:30,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:03:30,638 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:03:30,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:03:30,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1739595519, now seen corresponding path program 1 times [2020-07-20 22:03:30,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:03:30,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283565323] [2020-07-20 22:03:30,641 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 22:03:30,754 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:03:30,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:03:30,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:03:30,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:03:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:03:30,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:03:30,923 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:03:30,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283565323] [2020-07-20 22:03:30,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:03:30,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:03:30,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327985067] [2020-07-20 22:03:30,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:03:30,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:03:30,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:03:30,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:03:30,926 INFO L87 Difference]: Start difference. First operand 756 states and 988 transitions. Second operand 7 states. [2020-07-20 22:03:31,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:03:31,970 INFO L93 Difference]: Finished difference Result 1824 states and 2492 transitions. [2020-07-20 22:03:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:03:31,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-07-20 22:03:31,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:03:31,985 INFO L225 Difference]: With dead ends: 1824 [2020-07-20 22:03:31,985 INFO L226 Difference]: Without dead ends: 1074 [2020-07-20 22:03:31,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 324 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:03:31,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2020-07-20 22:03:32,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1064. [2020-07-20 22:03:32,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2020-07-20 22:03:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1394 transitions. [2020-07-20 22:03:32,036 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1394 transitions. Word has length 165 [2020-07-20 22:03:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:03:32,037 INFO L479 AbstractCegarLoop]: Abstraction has 1064 states and 1394 transitions. [2020-07-20 22:03:32,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:03:32,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1394 transitions. [2020-07-20 22:03:32,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-20 22:03:32,065 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:03:32,066 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] [2020-07-20 22:03:32,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:03:32,278 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:03:32,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:03:32,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1871203612, now seen corresponding path program 1 times [2020-07-20 22:03:32,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:03:32,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241826351] [2020-07-20 22:03:32,280 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:03:32,392 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:03:32,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:03:32,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:03:32,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:03:32,445 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-20 22:03:32,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:03:32,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241826351] [2020-07-20 22:03:32,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:03:32,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:03:32,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398464097] [2020-07-20 22:03:32,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:03:32,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:03:32,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:03:32,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:03:32,449 INFO L87 Difference]: Start difference. First operand 1064 states and 1394 transitions. Second operand 3 states. [2020-07-20 22:03:33,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:03:33,116 INFO L93 Difference]: Finished difference Result 2123 states and 2794 transitions. [2020-07-20 22:03:33,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:03:33,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-07-20 22:03:33,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:03:33,123 INFO L225 Difference]: With dead ends: 2123 [2020-07-20 22:03:33,123 INFO L226 Difference]: Without dead ends: 1065 [2020-07-20 22:03:33,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 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 22:03:33,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-07-20 22:03:33,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 916. [2020-07-20 22:03:33,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 916 states. [2020-07-20 22:03:33,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1125 transitions. [2020-07-20 22:03:33,156 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1125 transitions. Word has length 173 [2020-07-20 22:03:33,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:03:33,157 INFO L479 AbstractCegarLoop]: Abstraction has 916 states and 1125 transitions. [2020-07-20 22:03:33,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:03:33,157 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1125 transitions. [2020-07-20 22:03:33,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-20 22:03:33,161 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:03:33,161 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:33,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:03:33,375 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:03:33,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:03:33,376 INFO L82 PathProgramCache]: Analyzing trace with hash -829008407, now seen corresponding path program 1 times [2020-07-20 22:03:33,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:03:33,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387867401] [2020-07-20 22:03:33,377 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:03:33,525 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:03:33,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:03:33,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:03:33,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:03:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:03:33,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:03:33,659 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:03:33,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387867401] [2020-07-20 22:03:33,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:03:33,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:03:33,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807831891] [2020-07-20 22:03:33,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:03:33,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:03:33,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:03:33,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:03:33,662 INFO L87 Difference]: Start difference. First operand 916 states and 1125 transitions. Second operand 6 states. [2020-07-20 22:03:34,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:03:34,114 INFO L93 Difference]: Finished difference Result 1690 states and 2128 transitions. [2020-07-20 22:03:34,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:03:34,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-20 22:03:34,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:03:34,116 INFO L225 Difference]: With dead ends: 1690 [2020-07-20 22:03:34,116 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:03:34,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 348 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:03:34,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:03:34,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:03:34,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:03:34,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:03:34,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 177 [2020-07-20 22:03:34,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:03:34,124 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:03:34,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:03:34,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:03:34,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:03:34,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:03:34,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:03:34,724 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2020-07-20 22:03:34,852 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:03:34,852 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|)) [2020-07-20 22:03:34,852 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:03:34,852 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,853 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,853 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,853 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,853 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,853 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 22:03:34,853 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 22:03:34,853 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 22:03:34,853 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 22:03:34,854 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 22:03:34,854 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 22:03:34,854 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 22:03:34,854 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 22:03:34,854 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 22:03:34,854 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 22:03:34,854 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:03:34,855 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:03:34,855 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 22:03:34,855 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,855 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,855 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,855 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,855 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 22:03:34,855 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,856 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 22:03:34,856 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 22:03:34,856 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 22:03:34,856 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 22:03:34,856 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 22:03:34,856 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 22:03:34,856 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 22:03:34,856 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:03:34,856 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:03:34,857 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 22:03:34,857 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 22:03:34,857 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 22:03:34,857 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:03:34,857 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:03:34,858 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 22:03:34,858 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,858 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,858 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,858 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,858 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,859 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 496) no Hoare annotation was computed. [2020-07-20 22:03:34,859 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:03:34,859 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 22:03:34,859 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:03:34,859 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 22:03:34,859 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 22:03:34,859 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 22:03:34,859 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 22:03:34,859 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 22:03:34,860 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 22:03:34,860 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 22:03:34,860 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 22:03:34,860 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,860 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,860 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,860 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,861 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,861 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 22:03:34,861 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 22:03:34,861 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 22:03:34,861 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 22:03:34,861 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 22:03:34,861 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 22:03:34,861 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 22:03:34,862 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 22:03:34,862 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 22:03:34,862 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 22:03:34,862 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 22:03:34,862 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 22:03:34,862 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 22:03:34,862 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,862 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,862 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,863 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,863 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,863 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 22:03:34,863 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 22:03:34,863 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 22:03:34,863 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 22:03:34,863 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 22:03:34,863 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 22:03:34,863 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 22:03:34,863 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,864 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 22:03:34,865 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 22:03:34,866 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,867 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,868 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 22:03:34,868 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 22:03:34,868 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 22:03:34,868 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 22:03:34,868 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 22:03:34,868 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 22:03:34,868 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 22:03:34,868 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 22:03:34,868 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 22:03:34,869 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 22:03:34,869 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 22:03:34,869 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 22:03:34,869 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 22:03:34,869 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 22:03:34,869 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,869 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,869 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,870 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a28~0 |old(~a28~0)|)) (.cse0 (not (<= |old(~a17~0)| 8)))) (and (or (and (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 8)) (not (<= |old(~a28~0)| 8)) (not (<= 8 |old(~a17~0)|)) .cse0) (or (not (<= 9 |old(~a28~0)|)) (and .cse1 .cse2 (<= 9 ~a28~0)) .cse0) (or (not (<= 10 |old(~a28~0)|)) (<= 10 ~a28~0) .cse0) (or (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2) .cse0) (or (not (<= 11 |old(~a28~0)|)) .cse0 (<= 11 ~a28~0)))) [2020-07-20 22:03:34,870 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,870 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,870 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,870 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 22:03:34,870 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 22:03:34,871 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 22:03:34,871 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 22:03:34,871 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 22:03:34,871 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 22:03:34,871 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 22:03:34,871 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 22:03:34,871 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 22:03:34,872 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 22:03:34,872 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 22:03:34,872 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 22:03:34,872 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 22:03:34,872 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,872 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,872 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,873 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,873 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,873 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,873 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 22:03:34,873 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 22:03:34,873 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 22:03:34,873 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 22:03:34,873 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 22:03:34,874 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 22:03:34,874 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 22:03:34,874 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 22:03:34,874 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 22:03:34,874 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 22:03:34,874 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 22:03:34,874 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:03:34,875 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:03:34,875 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 22:03:34,875 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 22:03:34,875 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 22:03:34,875 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,875 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,876 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,876 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,876 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:03:34,876 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 22:03:34,876 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 22:03:34,876 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 22:03:34,876 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 22:03:34,877 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 22:03:34,877 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 22:03:34,877 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 22:03:34,877 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 22:03:34,877 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 22:03:34,877 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 22:03:34,877 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 22:03:34,878 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:03:34,878 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 22:03:34,878 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:03:34,878 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 22:03:34,878 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:03:34,878 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:03:34,878 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 22:03:34,879 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 22:03:34,879 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:03:34,879 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-20 22:03:34,879 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:03:34,879 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:03:34,879 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8))) [2020-07-20 22:03:34,880 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (and .cse0 (<= 9 ~a28~0)) (not (<= |old(~a28~0)| 7)) (and .cse0 (<= ~a28~0 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and .cse0 (<= 8 ~a17~0)))) [2020-07-20 22:03:34,880 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:03:34,880 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:03:34,880 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (and .cse0 (<= 9 ~a28~0)) (not (<= |old(~a28~0)| 7)) (and .cse0 (<= ~a28~0 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and .cse0 (<= 8 ~a17~0)))) [2020-07-20 22:03:34,880 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 22:03:34,880 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 22:03:34,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:03:34 BoogieIcfgContainer [2020-07-20 22:03:34,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:03:34,904 INFO L168 Benchmark]: Toolchain (without parser) took 11878.18 ms. Allocated memory was 144.7 MB in the beginning and 374.3 MB in the end (delta: 229.6 MB). Free memory was 100.7 MB in the beginning and 96.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 233.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:03:34,905 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 22:03:34,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.70 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 100.2 MB in the beginning and 172.0 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-20 22:03:34,907 INFO L168 Benchmark]: Boogie Preprocessor took 142.31 ms. Allocated memory is still 205.0 MB. Free memory was 172.0 MB in the beginning and 167.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 22:03:34,908 INFO L168 Benchmark]: RCFGBuilder took 1327.10 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 167.0 MB in the beginning and 182.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-07-20 22:03:34,910 INFO L168 Benchmark]: TraceAbstraction took 9649.83 ms. Allocated memory was 237.0 MB in the beginning and 374.3 MB in the end (delta: 137.4 MB). Free memory was 182.7 MB in the beginning and 96.8 MB in the end (delta: 85.9 MB). Peak memory consumption was 223.2 MB. Max. memory is 7.1 GB. [2020-07-20 22:03:34,914 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 749.70 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 100.2 MB in the beginning and 172.0 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 142.31 ms. Allocated memory is still 205.0 MB. Free memory was 172.0 MB in the beginning and 167.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1327.10 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 167.0 MB in the beginning and 182.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9649.83 ms. Allocated memory was 237.0 MB in the beginning and 374.3 MB in the end (delta: 137.4 MB). Free memory was 182.7 MB in the beginning and 96.8 MB in the end (delta: 85.9 MB). Peak memory consumption was 223.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 496]: 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: (((((a17 <= 8 && 9 <= a28) || !(\old(a28) <= 7)) || (a17 <= 8 && a28 <= 7)) || !(8 <= \old(a17))) || !(\old(a17) <= 8)) || (a17 <= 8 && 8 <= a17) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.9s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1044 SDtfs, 1205 SDslu, 225 SDs, 0 SdLazy, 2935 SolverSat, 673 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1374 GetRequests, 1354 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1064occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 595 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 44 PreInvPairs, 64 NumberOfFragments, 192 HoareAnnotationTreeSize, 44 FomulaSimplifications, 430 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 165 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1034 NumberOfCodeBlocks, 1034 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1367 ConstructedInterpolants, 0 QuantifiedInterpolants, 459825 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2611 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 401/409 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...