/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 NUM_FUNCTIONS --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_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:08:11,950 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 14:08:11,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:08:11,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:08:11,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:08:11,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:08:11,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:08:11,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:08:11,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:08:11,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:08:11,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:08:11,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:08:11,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:08:11,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:08:11,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:08:12,005 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 14:08:12,019 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:08:12,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:08:12,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:08:12,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:08:12,020 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:08:12,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:08:12,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:08:12,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:08:12,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:08:12,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:08:12,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:08:12,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:08:12,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:08:12,022 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:08:12,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:08:12,023 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:08:12,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:08:12,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:08:12,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:08:12,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:08:12,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:08:12,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:08:12,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:08:12,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:08:12,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:08:12,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:08:12,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:12,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:08:12,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:08:12,025 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 -> NUM_FUNCTIONS 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 14:08:12,291 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:08:12,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:08:12,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:08:12,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:08:12,317 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:08:12,318 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-20 14:08:12,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba9a98b9b/25a0da3627064489a5011de31871df7b/FLAG5c987b4a1 [2020-07-20 14:08:12,968 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:08:12,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-20 14:08:12,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba9a98b9b/25a0da3627064489a5011de31871df7b/FLAG5c987b4a1 [2020-07-20 14:08:13,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba9a98b9b/25a0da3627064489a5011de31871df7b [2020-07-20 14:08:13,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:08:13,158 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:08:13,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:08:13,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:08:13,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:08:13,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:08:13" (1/1) ... [2020-07-20 14:08:13,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd08649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:13, skipping insertion in model container [2020-07-20 14:08:13,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:08:13" (1/1) ... [2020-07-20 14:08:13,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:08:13,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:08:13,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:08:13,707 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:08:13,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:08:13,943 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:08:13,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:13 WrapperNode [2020-07-20 14:08:13,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:08:13,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:08:13,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:08:13,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:08:13,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:13" (1/1) ... [2020-07-20 14:08:13,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:13" (1/1) ... [2020-07-20 14:08:13,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:13" (1/1) ... [2020-07-20 14:08:13,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:13" (1/1) ... [2020-07-20 14:08:14,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:13" (1/1) ... [2020-07-20 14:08:14,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:13" (1/1) ... [2020-07-20 14:08:14,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:13" (1/1) ... [2020-07-20 14:08:14,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:08:14,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:08:14,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:08:14,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:08:14,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:13" (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 14:08:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:08:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:08:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:08:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:08:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:08:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:08:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:08:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:08:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:08:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:08:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:08:15,285 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:08:15,286 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:08:15,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:08:15 BoogieIcfgContainer [2020-07-20 14:08:15,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:08:15,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:08:15,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:08:15,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:08:15,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:08:13" (1/3) ... [2020-07-20 14:08:15,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:08:15, skipping insertion in model container [2020-07-20 14:08:15,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:13" (2/3) ... [2020-07-20 14:08:15,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:08:15, skipping insertion in model container [2020-07-20 14:08:15,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:08:15" (3/3) ... [2020-07-20 14:08:15,301 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label51.c [2020-07-20 14:08:15,311 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:08:15,319 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:08:15,334 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:08:15,359 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:08:15,360 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:08:15,360 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:08:15,360 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:08:15,360 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:08:15,361 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:08:15,361 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:08:15,361 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:08:15,384 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 14:08:15,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-20 14:08:15,398 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:15,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:15,399 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:15,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:15,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1960329542, now seen corresponding path program 1 times [2020-07-20 14:08:15,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:15,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256160405] [2020-07-20 14:08:15,416 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 14:08:15,590 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:15,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:15,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:08:15,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:15,710 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 14:08:15,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:08:15,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256160405] [2020-07-20 14:08:15,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:08:15,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:08:15,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568732161] [2020-07-20 14:08:15,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:08:15,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:15,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:08:15,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:08:15,737 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 14:08:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:16,616 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 14:08:16,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:08:16,619 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-07-20 14:08:16,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:16,650 INFO L225 Difference]: With dead ends: 619 [2020-07-20 14:08:16,651 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 14:08:16,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 14:08:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 14:08:16,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 14:08:16,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 14:08:16,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 14:08:16,775 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 116 [2020-07-20 14:08:16,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:16,776 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 14:08:16,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:08:16,776 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 14:08:16,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-20 14:08:16,781 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:16,781 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:16,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:16,995 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:16,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:16,996 INFO L82 PathProgramCache]: Analyzing trace with hash 539238327, now seen corresponding path program 1 times [2020-07-20 14:08:16,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:16,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276875547] [2020-07-20 14:08:16,996 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 14:08:17,098 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:17,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:17,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:17,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:08:17,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:08:17,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276875547] [2020-07-20 14:08:17,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:08:17,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:08:17,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402977274] [2020-07-20 14:08:17,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:08:17,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:17,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:08:17,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:08:17,174 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-20 14:08:17,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:17,797 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-20 14:08:17,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:08:17,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-20 14:08:17,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:17,807 INFO L225 Difference]: With dead ends: 782 [2020-07-20 14:08:17,807 INFO L226 Difference]: Without dead ends: 469 [2020-07-20 14:08:17,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 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 14:08:17,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-20 14:08:17,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-20 14:08:17,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-20 14:08:17,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-20 14:08:17,852 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 125 [2020-07-20 14:08:17,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:17,853 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-20 14:08:17,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:08:17,854 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-20 14:08:17,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 14:08:17,857 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:17,857 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:18,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:18,071 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:18,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:18,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1524654879, now seen corresponding path program 1 times [2020-07-20 14:08:18,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:18,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074814429] [2020-07-20 14:08:18,075 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 14:08:18,210 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:18,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:18,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 14:08:18,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:18,270 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 14:08:18,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:18,360 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 14:08:18,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074814429] [2020-07-20 14:08:18,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 14:08:18,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 14:08:18,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329837402] [2020-07-20 14:08:18,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 14:08:18,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:18,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 14:08:18,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:08:18,363 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 4 states. [2020-07-20 14:08:19,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:19,029 INFO L93 Difference]: Finished difference Result 1386 states and 1800 transitions. [2020-07-20 14:08:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 14:08:19,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2020-07-20 14:08:19,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:19,037 INFO L225 Difference]: With dead ends: 1386 [2020-07-20 14:08:19,037 INFO L226 Difference]: Without dead ends: 923 [2020-07-20 14:08:19,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 266 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:08:19,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-07-20 14:08:19,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2020-07-20 14:08:19,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-07-20 14:08:19,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1177 transitions. [2020-07-20 14:08:19,097 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1177 transitions. Word has length 137 [2020-07-20 14:08:19,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:19,098 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1177 transitions. [2020-07-20 14:08:19,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 14:08:19,098 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1177 transitions. [2020-07-20 14:08:19,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-20 14:08:19,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:19,105 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:19,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:19,323 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:19,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:19,324 INFO L82 PathProgramCache]: Analyzing trace with hash -689459332, now seen corresponding path program 1 times [2020-07-20 14:08:19,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:19,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523952649] [2020-07-20 14:08:19,326 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 14:08:19,430 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:19,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:19,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:19,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:19,484 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:08:19,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:08:19,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523952649] [2020-07-20 14:08:19,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:08:19,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:08:19,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217442355] [2020-07-20 14:08:19,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:08:19,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:19,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:08:19,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:08:19,487 INFO L87 Difference]: Start difference. First operand 923 states and 1177 transitions. Second operand 3 states. [2020-07-20 14:08:20,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:20,058 INFO L93 Difference]: Finished difference Result 2130 states and 2809 transitions. [2020-07-20 14:08:20,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:08:20,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-07-20 14:08:20,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:20,068 INFO L225 Difference]: With dead ends: 2130 [2020-07-20 14:08:20,068 INFO L226 Difference]: Without dead ends: 1213 [2020-07-20 14:08:20,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 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 14:08:20,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-07-20 14:08:20,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1211. [2020-07-20 14:08:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-07-20 14:08:20,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1581 transitions. [2020-07-20 14:08:20,114 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1581 transitions. Word has length 145 [2020-07-20 14:08:20,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:20,114 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1581 transitions. [2020-07-20 14:08:20,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:08:20,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1581 transitions. [2020-07-20 14:08:20,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-20 14:08:20,172 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:20,173 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:20,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:20,374 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:20,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:20,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1462992114, now seen corresponding path program 1 times [2020-07-20 14:08:20,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:20,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800711494] [2020-07-20 14:08:20,376 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 14:08:20,544 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:20,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:20,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:20,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 14:08:20,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:08:20,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800711494] [2020-07-20 14:08:20,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:08:20,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:08:20,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988898564] [2020-07-20 14:08:20,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:08:20,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:20,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:08:20,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:08:20,614 INFO L87 Difference]: Start difference. First operand 1211 states and 1581 transitions. Second operand 3 states. [2020-07-20 14:08:21,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:21,156 INFO L93 Difference]: Finished difference Result 3595 states and 4812 transitions. [2020-07-20 14:08:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:08:21,157 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-07-20 14:08:21,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:21,169 INFO L225 Difference]: With dead ends: 3595 [2020-07-20 14:08:21,169 INFO L226 Difference]: Without dead ends: 2390 [2020-07-20 14:08:21,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 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 14:08:21,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2020-07-20 14:08:21,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2380. [2020-07-20 14:08:21,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2380 states. [2020-07-20 14:08:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3112 transitions. [2020-07-20 14:08:21,258 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3112 transitions. Word has length 151 [2020-07-20 14:08:21,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:21,259 INFO L479 AbstractCegarLoop]: Abstraction has 2380 states and 3112 transitions. [2020-07-20 14:08:21,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:08:21,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3112 transitions. [2020-07-20 14:08:21,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-20 14:08:21,270 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:21,271 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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 14:08:21,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:21,484 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:21,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:21,484 INFO L82 PathProgramCache]: Analyzing trace with hash 651029189, now seen corresponding path program 1 times [2020-07-20 14:08:21,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:21,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045769544] [2020-07-20 14:08:21,485 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 14:08:21,643 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:21,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:21,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:21,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:21,685 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:08:21,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:21,756 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:08:21,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045769544] [2020-07-20 14:08:21,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:21,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:08:21,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893680630] [2020-07-20 14:08:21,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:08:21,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:21,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:08:21,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:08:21,759 INFO L87 Difference]: Start difference. First operand 2380 states and 3112 transitions. Second operand 6 states. [2020-07-20 14:08:22,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:22,735 INFO L93 Difference]: Finished difference Result 5458 states and 7301 transitions. [2020-07-20 14:08:22,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:08:22,737 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2020-07-20 14:08:22,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:22,755 INFO L225 Difference]: With dead ends: 5458 [2020-07-20 14:08:22,755 INFO L226 Difference]: Without dead ends: 3084 [2020-07-20 14:08:22,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 322 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:22,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2020-07-20 14:08:22,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 3036. [2020-07-20 14:08:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3036 states. [2020-07-20 14:08:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 3925 transitions. [2020-07-20 14:08:22,876 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 3925 transitions. Word has length 163 [2020-07-20 14:08:22,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:22,876 INFO L479 AbstractCegarLoop]: Abstraction has 3036 states and 3925 transitions. [2020-07-20 14:08:22,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:08:22,877 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 3925 transitions. [2020-07-20 14:08:22,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-20 14:08:22,886 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:22,886 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:23,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:23,100 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:23,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:23,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1324893951, now seen corresponding path program 1 times [2020-07-20 14:08:23,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:23,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904765863] [2020-07-20 14:08:23,102 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 14:08:23,207 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:23,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:23,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:23,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:23,251 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:08:23,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:08:23,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904765863] [2020-07-20 14:08:23,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:23,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:08:23,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193515472] [2020-07-20 14:08:23,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:08:23,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:23,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:08:23,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:08:23,329 INFO L87 Difference]: Start difference. First operand 3036 states and 3925 transitions. Second operand 6 states. [2020-07-20 14:08:24,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:24,210 INFO L93 Difference]: Finished difference Result 6128 states and 7987 transitions. [2020-07-20 14:08:24,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:08:24,213 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-07-20 14:08:24,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:24,229 INFO L225 Difference]: With dead ends: 6128 [2020-07-20 14:08:24,229 INFO L226 Difference]: Without dead ends: 3098 [2020-07-20 14:08:24,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 326 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:24,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2020-07-20 14:08:24,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 3074. [2020-07-20 14:08:24,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3074 states. [2020-07-20 14:08:24,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 3718 transitions. [2020-07-20 14:08:24,310 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 3718 transitions. Word has length 165 [2020-07-20 14:08:24,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:24,310 INFO L479 AbstractCegarLoop]: Abstraction has 3074 states and 3718 transitions. [2020-07-20 14:08:24,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:08:24,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 3718 transitions. [2020-07-20 14:08:24,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-20 14:08:24,319 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:24,319 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:24,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:24,533 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:24,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:24,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1116878025, now seen corresponding path program 1 times [2020-07-20 14:08:24,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:24,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885612996] [2020-07-20 14:08:24,536 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:24,631 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:24,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:24,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 14:08:24,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:24,675 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 14:08:24,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:08:24,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885612996] [2020-07-20 14:08:24,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:08:24,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:08:24,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354273160] [2020-07-20 14:08:24,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:08:24,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:24,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:08:24,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:08:24,677 INFO L87 Difference]: Start difference. First operand 3074 states and 3718 transitions. Second operand 5 states. [2020-07-20 14:08:25,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:25,543 INFO L93 Difference]: Finished difference Result 8135 states and 10324 transitions. [2020-07-20 14:08:25,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:08:25,545 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-07-20 14:08:25,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:25,569 INFO L225 Difference]: With dead ends: 8135 [2020-07-20 14:08:25,569 INFO L226 Difference]: Without dead ends: 5067 [2020-07-20 14:08:25,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:08:25,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5067 states. [2020-07-20 14:08:25,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5067 to 4995. [2020-07-20 14:08:25,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4995 states. [2020-07-20 14:08:25,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 5939 transitions. [2020-07-20 14:08:25,719 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 5939 transitions. Word has length 167 [2020-07-20 14:08:25,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:25,719 INFO L479 AbstractCegarLoop]: Abstraction has 4995 states and 5939 transitions. [2020-07-20 14:08:25,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:08:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 5939 transitions. [2020-07-20 14:08:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-20 14:08:25,739 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:25,740 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:25,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:25,954 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:25,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:25,955 INFO L82 PathProgramCache]: Analyzing trace with hash -27942242, now seen corresponding path program 1 times [2020-07-20 14:08:25,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:25,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855843348] [2020-07-20 14:08:25,956 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:26,102 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:26,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:26,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:26,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-07-20 14:08:26,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:26,244 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 120 proven. 39 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-20 14:08:26,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855843348] [2020-07-20 14:08:26,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:26,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:08:26,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462623426] [2020-07-20 14:08:26,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:08:26,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:26,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:08:26,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:08:26,247 INFO L87 Difference]: Start difference. First operand 4995 states and 5939 transitions. Second operand 6 states. [2020-07-20 14:08:27,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:27,103 INFO L93 Difference]: Finished difference Result 9991 states and 11887 transitions. [2020-07-20 14:08:27,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:08:27,109 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-07-20 14:08:27,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:27,128 INFO L225 Difference]: With dead ends: 9991 [2020-07-20 14:08:27,128 INFO L226 Difference]: Without dead ends: 4385 [2020-07-20 14:08:27,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 466 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:27,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4385 states. [2020-07-20 14:08:27,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4385 to 4374. [2020-07-20 14:08:27,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4374 states. [2020-07-20 14:08:27,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4374 states to 4374 states and 5042 transitions. [2020-07-20 14:08:27,232 INFO L78 Accepts]: Start accepts. Automaton has 4374 states and 5042 transitions. Word has length 235 [2020-07-20 14:08:27,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:27,233 INFO L479 AbstractCegarLoop]: Abstraction has 4374 states and 5042 transitions. [2020-07-20 14:08:27,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:08:27,233 INFO L276 IsEmpty]: Start isEmpty. Operand 4374 states and 5042 transitions. [2020-07-20 14:08:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-07-20 14:08:27,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:27,246 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:27,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:27,460 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:27,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:27,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1585046762, now seen corresponding path program 1 times [2020-07-20 14:08:27,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:27,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728396002] [2020-07-20 14:08:27,461 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:27,590 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:27,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:27,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:27,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:27,655 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-20 14:08:27,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 144 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-20 14:08:27,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728396002] [2020-07-20 14:08:27,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:27,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:08:27,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628924281] [2020-07-20 14:08:27,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:08:27,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:27,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:08:27,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:27,790 INFO L87 Difference]: Start difference. First operand 4374 states and 5042 transitions. Second operand 7 states. [2020-07-20 14:08:29,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:29,116 INFO L93 Difference]: Finished difference Result 9734 states and 11208 transitions. [2020-07-20 14:08:29,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:08:29,117 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-07-20 14:08:29,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:29,136 INFO L225 Difference]: With dead ends: 9734 [2020-07-20 14:08:29,136 INFO L226 Difference]: Without dead ends: 5366 [2020-07-20 14:08:29,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 473 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:29,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5366 states. [2020-07-20 14:08:29,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5366 to 3488. [2020-07-20 14:08:29,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3488 states. [2020-07-20 14:08:29,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3488 states to 3488 states and 3811 transitions. [2020-07-20 14:08:29,233 INFO L78 Accepts]: Start accepts. Automaton has 3488 states and 3811 transitions. Word has length 239 [2020-07-20 14:08:29,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:29,233 INFO L479 AbstractCegarLoop]: Abstraction has 3488 states and 3811 transitions. [2020-07-20 14:08:29,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:29,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3488 states and 3811 transitions. [2020-07-20 14:08:29,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-07-20 14:08:29,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:29,244 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:29,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:29,458 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:29,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:29,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1885983282, now seen corresponding path program 1 times [2020-07-20 14:08:29,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:29,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721108171] [2020-07-20 14:08:29,459 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:29,607 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:29,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:29,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:29,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:29,756 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-20 14:08:29,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 151 proven. 13 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-20 14:08:29,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721108171] [2020-07-20 14:08:29,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:29,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:08:29,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231661106] [2020-07-20 14:08:29,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:08:29,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:29,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:08:29,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:29,856 INFO L87 Difference]: Start difference. First operand 3488 states and 3811 transitions. Second operand 7 states. [2020-07-20 14:08:31,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:31,109 INFO L93 Difference]: Finished difference Result 8123 states and 8933 transitions. [2020-07-20 14:08:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:08:31,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-07-20 14:08:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:31,134 INFO L225 Difference]: With dead ends: 8123 [2020-07-20 14:08:31,135 INFO L226 Difference]: Without dead ends: 3462 [2020-07-20 14:08:31,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 487 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:31,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3462 states. [2020-07-20 14:08:31,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3462 to 3316. [2020-07-20 14:08:31,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3316 states. [2020-07-20 14:08:31,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 3564 transitions. [2020-07-20 14:08:31,215 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 3564 transitions. Word has length 246 [2020-07-20 14:08:31,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:31,216 INFO L479 AbstractCegarLoop]: Abstraction has 3316 states and 3564 transitions. [2020-07-20 14:08:31,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:31,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 3564 transitions. [2020-07-20 14:08:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-07-20 14:08:31,227 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:31,227 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 14:08:31,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:31,441 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:31,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:31,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1018854099, now seen corresponding path program 1 times [2020-07-20 14:08:31,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:31,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865872799] [2020-07-20 14:08:31,442 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:31,635 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:31,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:31,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:31,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:31,701 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-07-20 14:08:31,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:31,784 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 152 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-20 14:08:31,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865872799] [2020-07-20 14:08:31,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:31,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:08:31,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931249915] [2020-07-20 14:08:31,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:08:31,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:31,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:08:31,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:31,786 INFO L87 Difference]: Start difference. First operand 3316 states and 3564 transitions. Second operand 7 states. [2020-07-20 14:08:32,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:32,265 INFO L93 Difference]: Finished difference Result 6459 states and 6955 transitions. [2020-07-20 14:08:32,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 14:08:32,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 250 [2020-07-20 14:08:32,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:32,275 INFO L225 Difference]: With dead ends: 6459 [2020-07-20 14:08:32,276 INFO L226 Difference]: Without dead ends: 3149 [2020-07-20 14:08:32,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 494 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:08:32,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2020-07-20 14:08:32,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 3143. [2020-07-20 14:08:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3143 states. [2020-07-20 14:08:32,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 3341 transitions. [2020-07-20 14:08:32,340 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 3341 transitions. Word has length 250 [2020-07-20 14:08:32,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:32,341 INFO L479 AbstractCegarLoop]: Abstraction has 3143 states and 3341 transitions. [2020-07-20 14:08:32,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:32,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 3341 transitions. [2020-07-20 14:08:32,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-20 14:08:32,354 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:32,354 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:32,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:32,568 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:32,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:32,568 INFO L82 PathProgramCache]: Analyzing trace with hash 631595354, now seen corresponding path program 1 times [2020-07-20 14:08:32,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:32,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571439402] [2020-07-20 14:08:32,569 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:32,716 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:32,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:32,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 14:08:32,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-07-20 14:08:32,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:08:32,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571439402] [2020-07-20 14:08:32,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:08:32,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:08:32,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129043021] [2020-07-20 14:08:32,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:08:32,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:32,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:08:32,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:08:32,828 INFO L87 Difference]: Start difference. First operand 3143 states and 3341 transitions. Second operand 3 states. [2020-07-20 14:08:33,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:33,264 INFO L93 Difference]: Finished difference Result 5072 states and 5392 transitions. [2020-07-20 14:08:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:08:33,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2020-07-20 14:08:33,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:33,265 INFO L225 Difference]: With dead ends: 5072 [2020-07-20 14:08:33,265 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:08:33,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 269 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 14:08:33,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:08:33,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:08:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:08:33,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:08:33,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 271 [2020-07-20 14:08:33,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:33,276 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:08:33,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:08:33,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:08:33,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:08:33,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:33,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:08:34,037 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 147 [2020-07-20 14:08:34,199 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 147 [2020-07-20 14:08:36,656 WARN L193 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 185 DAG size of output: 96 [2020-07-20 14:08:37,520 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 68 [2020-07-20 14:08:38,366 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 68 [2020-07-20 14:08:38,370 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:08:38,371 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)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-20 14:08:38,371 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:08:38,371 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,371 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,372 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,372 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,372 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,372 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 14:08:38,372 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 14:08:38,373 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 14:08:38,373 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 14:08:38,373 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 14:08:38,373 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 14:08:38,373 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 14:08:38,373 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 14:08:38,373 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 14:08:38,374 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 14:08:38,374 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:08:38,374 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:08:38,374 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 14:08:38,374 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,374 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,374 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,374 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,375 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 14:08:38,375 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,375 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 14:08:38,375 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 14:08:38,375 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 14:08:38,375 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 14:08:38,375 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 14:08:38,375 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 14:08:38,376 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 14:08:38,376 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:08:38,376 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:08:38,376 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 14:08:38,376 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 14:08:38,376 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 14:08:38,376 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:08:38,376 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:08:38,377 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 14:08:38,377 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,377 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,377 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,377 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,377 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,377 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 502) no Hoare annotation was computed. [2020-07-20 14:08:38,377 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:08:38,378 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 14:08:38,378 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:08:38,378 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 14:08:38,378 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 14:08:38,378 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 14:08:38,378 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 14:08:38,378 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 14:08:38,378 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 14:08:38,379 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 14:08:38,379 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 14:08:38,379 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,379 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,379 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,379 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,379 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,379 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 14:08:38,380 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 14:08:38,380 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 14:08:38,380 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 14:08:38,380 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 14:08:38,380 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 14:08:38,380 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 14:08:38,380 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 14:08:38,380 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 14:08:38,380 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 14:08:38,381 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 14:08:38,381 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 14:08:38,381 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 14:08:38,381 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,381 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,381 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,381 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,381 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,382 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 14:08:38,382 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 14:08:38,382 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 14:08:38,382 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 14:08:38,382 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 14:08:38,382 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 14:08:38,382 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 14:08:38,382 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 14:08:38,383 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 14:08:38,383 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 14:08:38,383 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 14:08:38,383 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 14:08:38,383 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 14:08:38,383 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:08:38,383 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 14:08:38,383 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:08:38,383 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,383 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,384 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,384 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,384 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 14:08:38,384 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,384 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:08:38,384 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,384 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:08:38,384 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:08:38,384 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:08:38,385 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,385 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,385 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 14:08:38,385 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 14:08:38,385 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 14:08:38,385 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 14:08:38,385 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 14:08:38,385 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 14:08:38,386 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 14:08:38,386 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 14:08:38,386 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 14:08:38,386 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 14:08:38,386 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 14:08:38,386 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,386 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,386 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,386 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,387 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,387 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,387 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 14:08:38,387 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 14:08:38,387 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 14:08:38,387 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 14:08:38,387 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 14:08:38,387 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 14:08:38,387 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 14:08:38,388 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 14:08:38,388 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 14:08:38,388 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 14:08:38,388 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 14:08:38,388 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,388 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,388 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,388 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,388 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,389 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,389 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 14:08:38,389 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 14:08:38,389 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 14:08:38,389 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 14:08:38,389 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 14:08:38,389 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 14:08:38,389 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 14:08:38,389 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 14:08:38,390 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 14:08:38,390 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 14:08:38,390 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 14:08:38,390 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 14:08:38,390 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 14:08:38,390 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 14:08:38,390 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,390 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,390 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,391 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse26 (<= ~a11~0 0)) (.cse13 (<= ~a17~0 8)) (.cse14 (<= 8 ~a17~0)) (.cse16 (not (= 1 ~a11~0))) (.cse22 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a28~0 |old(~a28~0)|)) (.cse17 (= ~a19~0 |old(~a19~0)|)) (.cse18 (<= |old(~a28~0)| ~a28~0))) (let ((.cse3 (not (<= 11 |old(~a28~0)|))) (.cse8 (and .cse22 .cse11 .cse17 .cse18)) (.cse20 (<= ~a28~0 9)) (.cse1 (= 1 |old(~a11~0)|)) (.cse4 (and .cse11 .cse13 .cse14 .cse16 .cse17 .cse18)) (.cse19 (not (<= 9 |old(~a28~0)|))) (.cse6 (not (<= |old(~a28~0)| 9))) (.cse27 (not (<= |old(~a11~0)| 0))) (.cse21 (not (<= |old(~a28~0)| 7))) (.cse2 (not (<= 8 |old(~a17~0)|))) (.cse5 (not (<= |old(~a17~0)| 8))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse24 (not (<= |old(~a28~0)| 10))) (.cse12 (or .cse26 (< 0 |old(~a11~0)|))) (.cse23 (<= ~a28~0 10)) (.cse15 (<= ~a25~0 0)) (.cse9 (not (<= |old(~a25~0)| 0))) (.cse10 (not (<= |old(~a19~0)| 0))) (.cse7 (not (<= |old(~a17~0)| 7))) (.cse25 (not (<= 10 |old(~a28~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse6 .cse7 .cse8) (or .cse1 .cse6 .cse2 .cse9 .cse10 (and .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18) .cse5) (or .cse0 .cse19 .cse6 .cse2 .cse9 .cse15 .cse5) (or .cse0 .cse3 .cse7 .cse8) (or .cse0 .cse19 .cse6 .cse2 (and .cse13 .cse14 .cse20 .cse17 .cse18) .cse5) (or .cse1 .cse21 .cse2 .cse10 .cse16 .cse5) (or .cse19 .cse6 .cse10 .cse7 (and .cse22 .cse12 .cse20 .cse17 .cse18)) (or (and .cse12 .cse13 .cse14 .cse23 .cse16 .cse17 .cse18) .cse24 .cse1 .cse2 .cse10 .cse25 .cse5) (or .cse0 .cse24 .cse9 .cse15 .cse25) (or .cse0 .cse26 .cse5 .cse27) (or .cse0 .cse1 .cse6 .cse2 .cse4 .cse5) (or .cse0 .cse21 .cse9 .cse15 .cse5 .cse27) (or .cse19 .cse6 .cse9 .cse10 .cse15 .cse7 .cse27) (or .cse21 .cse2 .cse10 (and .cse11 .cse13 .cse14 .cse12 .cse17 .cse18) .cse5) (or .cse0 .cse21 .cse2 (and .cse11 .cse13 .cse14 .cse17 .cse18) .cse5) (or .cse0 (and .cse12 .cse23 .cse17 .cse18) .cse24 .cse25) (or .cse24 (and .cse22 .cse12 .cse23 .cse15 .cse17 .cse18) .cse9 .cse10 .cse7 .cse25)))) [2020-07-20 14:08:38,391 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,391 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,391 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,391 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 14:08:38,392 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 14:08:38,392 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 14:08:38,392 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 14:08:38,392 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 14:08:38,392 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 14:08:38,392 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 14:08:38,392 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 14:08:38,392 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 14:08:38,392 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 14:08:38,393 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 14:08:38,393 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 14:08:38,393 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 14:08:38,393 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,393 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,393 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,393 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,393 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,393 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,393 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 14:08:38,394 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 14:08:38,394 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 14:08:38,394 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 14:08:38,394 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 14:08:38,394 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 14:08:38,394 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 14:08:38,394 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 14:08:38,394 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 14:08:38,394 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 14:08:38,395 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 14:08:38,395 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:08:38,395 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:08:38,395 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 14:08:38,395 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 14:08:38,395 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 14:08:38,395 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,395 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,395 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,395 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,396 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:38,396 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 14:08:38,396 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 14:08:38,396 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 14:08:38,396 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 14:08:38,396 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 14:08:38,396 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 14:08:38,396 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 14:08:38,396 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 14:08:38,396 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 14:08:38,397 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 14:08:38,397 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 14:08:38,397 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:08:38,397 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 14:08:38,397 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:08:38,397 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 14:08:38,397 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:08:38,397 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:08:38,397 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 14:08:38,397 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 14:08:38,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:08:38,398 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-20 14:08:38,398 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:08:38,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:08:38,398 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a17~0)| 8)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (<= ~a25~0 0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) (not (<= |old(~a11~0)| 0))) [2020-07-20 14:08:38,398 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse12 (<= 10 ~a28~0)) (.cse14 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= 11 ~a28~0)) (.cse16 (<= |old(~a28~0)| 10)) (.cse2 (<= ~a17~0 7)) (.cse3 (< 7 |old(~a17~0)|)) (.cse0 (<= ~a28~0 10)) (.cse5 (<= ~a19~0 0)) (.cse1 (<= ~a25~0 0)) (.cse11 (<= ~a28~0 7)) (.cse6 (< 0 |old(~a19~0)|)) (.cse13 (not (= 1 ~a11~0))) (.cse7 (= 1 ~a19~0)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse10 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 9)) (.cse4 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse3) (and .cse9 .cse10 .cse5 .cse11) (not (<= |old(~a28~0)| 7)) (and .cse9 .cse10 .cse0 .cse12 .cse13 .cse5) (and .cse7 .cse2 .cse14 .cse15 .cse3 .cse16) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse12 (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse9 .cse10 .cse11) (and .cse7 .cse9 .cse10 .cse14 .cse13 .cse15 .cse16) (and .cse8 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~a17~0)| 8)) (and .cse9 .cse10 .cse0 .cse1 .cse13 .cse5) (and .cse7 .cse9 (<= ~a11~0 0) .cse1 .cse11) (and .cse6 .cse7 .cse9 .cse10 .cse8 .cse13) (and .cse7 .cse9 .cse10 .cse8 .cse4))) [2020-07-20 14:08:38,399 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:08:38,399 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:08:38,399 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse12 (<= 10 ~a28~0)) (.cse14 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= 11 ~a28~0)) (.cse16 (<= |old(~a28~0)| 10)) (.cse2 (<= ~a17~0 7)) (.cse3 (< 7 |old(~a17~0)|)) (.cse0 (<= ~a28~0 10)) (.cse5 (<= ~a19~0 0)) (.cse1 (<= ~a25~0 0)) (.cse11 (<= ~a28~0 7)) (.cse6 (< 0 |old(~a19~0)|)) (.cse13 (not (= 1 ~a11~0))) (.cse7 (= 1 ~a19~0)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse10 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 9)) (.cse4 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse3) (and .cse9 .cse10 .cse5 .cse11) (not (<= |old(~a28~0)| 7)) (and .cse9 .cse10 .cse0 .cse12 .cse13 .cse5) (and .cse7 .cse2 .cse14 .cse15 .cse3 .cse16) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse12 (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse9 .cse10 .cse11) (and .cse7 .cse9 .cse10 .cse14 .cse13 .cse15 .cse16) (and .cse8 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~a17~0)| 8)) (and .cse9 .cse10 .cse0 .cse1 .cse13 .cse5) (and .cse7 .cse9 (<= ~a11~0 0) .cse1 .cse11) (and .cse6 .cse7 .cse9 .cse10 .cse8 .cse13) (and .cse7 .cse9 .cse10 .cse8 .cse4))) [2020-07-20 14:08:38,399 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 14:08:38,399 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 14:08:38,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:08:38 BoogieIcfgContainer [2020-07-20 14:08:38,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:08:38,431 INFO L168 Benchmark]: Toolchain (without parser) took 25273.56 ms. Allocated memory was 137.9 MB in the beginning and 628.6 MB in the end (delta: 490.7 MB). Free memory was 100.0 MB in the beginning and 117.5 MB in the end (delta: -17.6 MB). Peak memory consumption was 478.2 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:38,437 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 14:08:38,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.61 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 99.6 MB in the beginning and 171.9 MB in the end (delta: -72.3 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:38,438 INFO L168 Benchmark]: Boogie Preprocessor took 108.05 ms. Allocated memory is still 204.5 MB. Free memory was 171.9 MB in the beginning and 166.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:38,438 INFO L168 Benchmark]: RCFGBuilder took 1239.02 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.8 MB in the beginning and 182.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:38,439 INFO L168 Benchmark]: TraceAbstraction took 23136.17 ms. Allocated memory was 236.5 MB in the beginning and 628.6 MB in the end (delta: 392.2 MB). Free memory was 182.1 MB in the beginning and 117.5 MB in the end (delta: 64.6 MB). Peak memory consumption was 461.7 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:38,444 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 784.61 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 99.6 MB in the beginning and 171.9 MB in the end (delta: -72.3 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.05 ms. Allocated memory is still 204.5 MB. Free memory was 171.9 MB in the beginning and 166.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1239.02 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.8 MB in the beginning and 182.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23136.17 ms. Allocated memory was 236.5 MB in the beginning and 628.6 MB in the end (delta: 392.2 MB). Free memory was 182.1 MB in the beginning and 117.5 MB in the end (delta: 64.6 MB). Peak memory consumption was 461.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 502]: 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: ((((((((((((((((!(1 == \old(a19)) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || ((((0 < \old(a19) && 1 == a19) && a28 <= 9) && a17 <= 7) && 7 < \old(a17))) || (((a17 <= \old(a17) && 8 <= a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && 10 <= a28) && !(1 == a11)) && a19 <= 0)) || (((((1 == a19 && a17 <= 7) && a19 <= \old(a19)) && 11 <= a28) && 7 < \old(a17)) && \old(a28) <= 10)) || !(\old(a11) <= 0)) || ((a28 <= 10 && 10 <= a28) && a19 == \old(a19))) || !(\old(a25) <= 0)) || (((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 7)) || ((((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a19 <= \old(a19)) && !(1 == a11)) && 11 <= a28) && \old(a28) <= 10)) || ((((a28 <= 9 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || !(\old(a17) <= 8)) || (((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && a25 <= 0) && !(1 == a11)) && a19 <= 0)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a25 <= 0) && a28 <= 7)) || (((((0 < \old(a19) && 1 == a19) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && !(1 == a11))) || ((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && 9 <= a28) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.1s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1143 SDtfs, 4743 SDslu, 621 SDs, 0 SdLazy, 8411 SolverSat, 1250 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3863 GetRequests, 3795 SyntacticMatches, 13 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4995occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 2199 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 235 PreInvPairs, 305 NumberOfFragments, 1160 HoareAnnotationTreeSize, 235 FomulaSimplifications, 4825 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8850 FormulaSimplificationTreeSizeReductionInter, 4.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2410 NumberOfCodeBlocks, 2410 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 3825 ConstructedInterpolants, 0 QuantifiedInterpolants, 1154217 SizeOfPredicates, 18 NumberOfNonLiveVariables, 6118 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 2352/2464 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...