/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:08:13,362 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 20:08:13,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:08:13,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:08:13,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:08:13,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:08:13,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:08:13,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:08:13,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:08:13,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:08:13,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:08:13,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:08:13,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:08:13,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:08:13,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:08:13,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:08:13,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:08:13,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:08:13,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:08:13,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:08:13,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:08:13,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:08:13,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:08:13,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:08:13,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:08:13,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:08:13,414 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 [2020-07-21 20:08:13,429 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:08:13,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:08:13,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:08:13,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:08:13,431 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:08:13,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:08:13,431 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:08:13,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:08:13,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:08:13,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:08:13,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:08:13,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:08:13,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:08:13,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:08:13,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:08:13,433 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:08:13,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:08:13,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:08:13,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:08:13,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:08:13,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:08:13,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:08:13,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:08:13,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:08:13,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:08:13,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:08:13,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:13,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:08:13,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:08:13,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:08:13,724 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:08:13,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:08:13,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:08:13,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:08:13,742 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:08:13,743 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-07-21 20:08:13,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/663cd4f9c/5c40df1d3497459e867e3dabe5f90dc4/FLAGadeefe7c8 [2020-07-21 20:08:14,409 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:08:14,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-07-21 20:08:14,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/663cd4f9c/5c40df1d3497459e867e3dabe5f90dc4/FLAGadeefe7c8 [2020-07-21 20:08:14,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/663cd4f9c/5c40df1d3497459e867e3dabe5f90dc4 [2020-07-21 20:08:14,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:08:14,683 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:08:14,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:08:14,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:08:14,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:08:14,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:08:14" (1/1) ... [2020-07-21 20:08:14,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@83b6cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:14, skipping insertion in model container [2020-07-21 20:08:14,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:08:14" (1/1) ... [2020-07-21 20:08:14,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:08:14,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:08:15,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:08:15,146 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:08:15,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:08:15,370 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:08:15,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:15 WrapperNode [2020-07-21 20:08:15,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:08:15,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:08:15,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:08:15,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:08:15,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:15" (1/1) ... [2020-07-21 20:08:15,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:15" (1/1) ... [2020-07-21 20:08:15,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:15" (1/1) ... [2020-07-21 20:08:15,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:15" (1/1) ... [2020-07-21 20:08:15,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:15" (1/1) ... [2020-07-21 20:08:15,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:15" (1/1) ... [2020-07-21 20:08:15,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:15" (1/1) ... [2020-07-21 20:08:15,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:08:15,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:08:15,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:08:15,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:08:15,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:15" (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 [2020-07-21 20:08:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:08:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:08:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:08:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:08:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:08:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:08:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:08:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:08:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:08:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:08:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:08:16,691 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:08:16,691 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:08:16,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:08:16 BoogieIcfgContainer [2020-07-21 20:08:16,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:08:16,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:08:16,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:08:16,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:08:16,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:08:14" (1/3) ... [2020-07-21 20:08:16,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e680c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:08:16, skipping insertion in model container [2020-07-21 20:08:16,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:15" (2/3) ... [2020-07-21 20:08:16,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e680c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:08:16, skipping insertion in model container [2020-07-21 20:08:16,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:08:16" (3/3) ... [2020-07-21 20:08:16,706 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label53.c [2020-07-21 20:08:16,717 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:08:16,726 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:08:16,741 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:08:16,769 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:08:16,770 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:08:16,770 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:08:16,770 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:08:16,770 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:08:16,771 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:08:16,771 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:08:16,771 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:08:16,795 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 20:08:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 20:08:16,808 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:16,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:16,810 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:16,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:16,818 INFO L82 PathProgramCache]: Analyzing trace with hash 597031182, now seen corresponding path program 1 times [2020-07-21 20:08:16,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:16,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166835636] [2020-07-21 20:08:16,829 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:08:17,043 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:17,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:17,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:08:17,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:17,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:17,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:17,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166835636] [2020-07-21 20:08:17,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:17,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:17,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076289412] [2020-07-21 20:08:17,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:17,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:17,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:17,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:17,192 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 20:08:18,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:18,046 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-21 20:08:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:18,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-21 20:08:18,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:18,067 INFO L225 Difference]: With dead ends: 547 [2020-07-21 20:08:18,067 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 20:08:18,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:18,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 20:08:18,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 20:08:18,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 20:08:18,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2020-07-21 20:08:18,139 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 120 [2020-07-21 20:08:18,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:18,144 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2020-07-21 20:08:18,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:18,144 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2020-07-21 20:08:18,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 20:08:18,148 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:18,149 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:18,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:18,362 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:18,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:18,363 INFO L82 PathProgramCache]: Analyzing trace with hash 330455461, now seen corresponding path program 1 times [2020-07-21 20:08:18,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:18,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386286321] [2020-07-21 20:08:18,366 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:08:18,521 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:18,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:18,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:08:18,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:18,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:18,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386286321] [2020-07-21 20:08:18,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:18,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:18,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703650131] [2020-07-21 20:08:18,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:18,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:18,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:18,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:18,598 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 3 states. [2020-07-21 20:08:19,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:19,121 INFO L93 Difference]: Finished difference Result 820 states and 1199 transitions. [2020-07-21 20:08:19,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:19,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-07-21 20:08:19,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:19,127 INFO L225 Difference]: With dead ends: 820 [2020-07-21 20:08:19,128 INFO L226 Difference]: Without dead ends: 548 [2020-07-21 20:08:19,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:19,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-21 20:08:19,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 413. [2020-07-21 20:08:19,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-07-21 20:08:19,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 563 transitions. [2020-07-21 20:08:19,163 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 563 transitions. Word has length 130 [2020-07-21 20:08:19,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:19,163 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 563 transitions. [2020-07-21 20:08:19,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:19,164 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 563 transitions. [2020-07-21 20:08:19,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 20:08:19,167 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:19,167 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-07-21 20:08:19,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:19,392 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:19,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:19,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1219225115, now seen corresponding path program 1 times [2020-07-21 20:08:19,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:19,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95338667] [2020-07-21 20:08:19,396 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:08:19,511 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:19,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:19,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:08:19,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:19,590 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:19,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:19,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95338667] [2020-07-21 20:08:19,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:19,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:19,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884582471] [2020-07-21 20:08:19,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:19,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:19,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:19,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:19,593 INFO L87 Difference]: Start difference. First operand 413 states and 563 transitions. Second operand 3 states. [2020-07-21 20:08:20,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:20,169 INFO L93 Difference]: Finished difference Result 1225 states and 1703 transitions. [2020-07-21 20:08:20,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:20,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-21 20:08:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:20,177 INFO L225 Difference]: With dead ends: 1225 [2020-07-21 20:08:20,178 INFO L226 Difference]: Without dead ends: 818 [2020-07-21 20:08:20,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:20,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-21 20:08:20,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2020-07-21 20:08:20,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-21 20:08:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1082 transitions. [2020-07-21 20:08:20,215 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1082 transitions. Word has length 137 [2020-07-21 20:08:20,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:20,216 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1082 transitions. [2020-07-21 20:08:20,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:20,216 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1082 transitions. [2020-07-21 20:08:20,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 20:08:20,222 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:20,222 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:20,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:20,434 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:20,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:20,435 INFO L82 PathProgramCache]: Analyzing trace with hash -2034569339, now seen corresponding path program 1 times [2020-07-21 20:08:20,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:20,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840754757] [2020-07-21 20:08:20,437 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:08:20,545 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:20,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:20,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:08:20,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:20,645 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:20,646 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:20,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840754757] [2020-07-21 20:08:20,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:20,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:20,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741907895] [2020-07-21 20:08:20,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:20,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:20,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:20,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:20,649 INFO L87 Difference]: Start difference. First operand 818 states and 1082 transitions. Second operand 3 states. [2020-07-21 20:08:21,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:21,237 INFO L93 Difference]: Finished difference Result 2035 states and 2762 transitions. [2020-07-21 20:08:21,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:21,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-07-21 20:08:21,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:21,246 INFO L225 Difference]: With dead ends: 2035 [2020-07-21 20:08:21,246 INFO L226 Difference]: Without dead ends: 1223 [2020-07-21 20:08:21,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2020-07-21 20:08:21,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1223. [2020-07-21 20:08:21,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-07-21 20:08:21,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1601 transitions. [2020-07-21 20:08:21,293 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1601 transitions. Word has length 146 [2020-07-21 20:08:21,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:21,294 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1601 transitions. [2020-07-21 20:08:21,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:21,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1601 transitions. [2020-07-21 20:08:21,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-21 20:08:21,299 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:21,300 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:21,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:21,516 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:21,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:21,516 INFO L82 PathProgramCache]: Analyzing trace with hash 118923832, now seen corresponding path program 1 times [2020-07-21 20:08:21,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:21,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608226193] [2020-07-21 20:08:21,518 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:08:21,643 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:21,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:21,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:08:21,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-21 20:08:21,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:21,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608226193] [2020-07-21 20:08:21,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:21,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:08:21,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196120107] [2020-07-21 20:08:21,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:08:21,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:21,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:08:21,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:08:21,728 INFO L87 Difference]: Start difference. First operand 1223 states and 1601 transitions. Second operand 5 states. [2020-07-21 20:08:22,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:22,565 INFO L93 Difference]: Finished difference Result 3036 states and 4098 transitions. [2020-07-21 20:08:22,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:08:22,566 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2020-07-21 20:08:22,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:22,593 INFO L225 Difference]: With dead ends: 3036 [2020-07-21 20:08:22,594 INFO L226 Difference]: Without dead ends: 1819 [2020-07-21 20:08:22,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:08:22,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2020-07-21 20:08:22,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1781. [2020-07-21 20:08:22,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-07-21 20:08:22,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2305 transitions. [2020-07-21 20:08:22,729 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2305 transitions. Word has length 174 [2020-07-21 20:08:22,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:22,730 INFO L479 AbstractCegarLoop]: Abstraction has 1781 states and 2305 transitions. [2020-07-21 20:08:22,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:08:22,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2305 transitions. [2020-07-21 20:08:22,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-21 20:08:22,744 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:22,745 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:22,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:22,959 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:22,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:22,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1521407610, now seen corresponding path program 1 times [2020-07-21 20:08:22,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:22,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166368002] [2020-07-21 20:08:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:08:23,107 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:23,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:23,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:08:23,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:23,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:08:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:23,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166368002] [2020-07-21 20:08:23,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:08:23,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:08:23,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368595308] [2020-07-21 20:08:23,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:08:23,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:23,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:08:23,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:08:23,294 INFO L87 Difference]: Start difference. First operand 1781 states and 2305 transitions. Second operand 6 states. [2020-07-21 20:08:23,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:23,937 INFO L93 Difference]: Finished difference Result 3894 states and 5179 transitions. [2020-07-21 20:08:23,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:08:23,940 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-07-21 20:08:23,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:23,954 INFO L225 Difference]: With dead ends: 3894 [2020-07-21 20:08:23,954 INFO L226 Difference]: Without dead ends: 2119 [2020-07-21 20:08:23,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:08:23,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2020-07-21 20:08:24,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1666. [2020-07-21 20:08:24,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1666 states. [2020-07-21 20:08:24,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2053 transitions. [2020-07-21 20:08:24,036 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2053 transitions. Word has length 175 [2020-07-21 20:08:24,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:24,036 INFO L479 AbstractCegarLoop]: Abstraction has 1666 states and 2053 transitions. [2020-07-21 20:08:24,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:08:24,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2053 transitions. [2020-07-21 20:08:24,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 20:08:24,043 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:24,044 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:24,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:24,257 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:24,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:24,258 INFO L82 PathProgramCache]: Analyzing trace with hash 795457010, now seen corresponding path program 1 times [2020-07-21 20:08:24,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:24,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490708062] [2020-07-21 20:08:24,259 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 20:08:24,402 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:24,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:24,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:08:24,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:24,445 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 20:08:24,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:24,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490708062] [2020-07-21 20:08:24,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:24,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:24,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936056915] [2020-07-21 20:08:24,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:24,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:24,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:24,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:24,447 INFO L87 Difference]: Start difference. First operand 1666 states and 2053 transitions. Second operand 3 states. [2020-07-21 20:08:24,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:25,000 INFO L93 Difference]: Finished difference Result 4414 states and 5526 transitions. [2020-07-21 20:08:25,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:25,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-21 20:08:25,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:25,001 INFO L225 Difference]: With dead ends: 4414 [2020-07-21 20:08:25,001 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:08:25,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:25,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:08:25,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:08:25,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:08:25,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:08:25,011 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-07-21 20:08:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:25,011 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:08:25,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:25,011 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:08:25,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:08:25,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:25,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:08:26,195 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2020-07-21 20:08:26,332 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-07-21 20:08:26,463 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-07-21 20:08:26,467 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:08:26,467 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 20:08:26,467 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:08:26,468 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 20:08:26,468 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 20:08:26,468 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,468 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,469 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,469 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,469 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,469 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,470 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 20:08:26,470 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 20:08:26,470 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 20:08:26,470 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 20:08:26,470 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 20:08:26,470 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 20:08:26,470 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 20:08:26,471 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 20:08:26,471 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 20:08:26,471 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 20:08:26,471 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,471 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,471 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,471 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,472 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,472 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,472 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 20:08:26,472 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 20:08:26,472 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 20:08:26,472 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 20:08:26,472 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 20:08:26,473 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 20:08:26,473 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 20:08:26,473 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 20:08:26,473 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 20:08:26,473 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 20:08:26,473 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 20:08:26,473 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 518) no Hoare annotation was computed. [2020-07-21 20:08:26,474 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 20:08:26,474 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 20:08:26,474 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 20:08:26,474 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 20:08:26,474 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,474 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,475 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,475 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,475 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,475 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 20:08:26,475 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 20:08:26,475 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 20:08:26,475 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 20:08:26,476 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 20:08:26,476 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 20:08:26,476 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 20:08:26,476 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 20:08:26,476 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 20:08:26,476 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,476 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,476 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,477 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,477 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,477 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 20:08:26,477 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 20:08:26,477 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 20:08:26,477 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 20:08:26,477 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 20:08:26,478 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 20:08:26,478 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 20:08:26,478 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 20:08:26,478 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 20:08:26,478 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 20:08:26,478 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 20:08:26,478 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 20:08:26,479 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 20:08:26,479 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,479 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,479 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,479 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,479 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,479 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 20:08:26,480 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 20:08:26,480 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 20:08:26,480 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 20:08:26,480 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 20:08:26,480 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 20:08:26,480 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 20:08:26,480 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 20:08:26,480 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 20:08:26,481 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,481 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,481 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,481 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,481 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,481 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,481 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 20:08:26,482 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,482 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 20:08:26,482 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 20:08:26,482 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 20:08:26,482 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 20:08:26,482 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 20:08:26,482 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 20:08:26,482 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 20:08:26,482 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 20:08:26,483 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 20:08:26,483 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 20:08:26,483 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 20:08:26,483 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 20:08:26,483 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 20:08:26,483 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,483 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,484 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,484 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,484 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,484 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 20:08:26,484 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 20:08:26,484 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 20:08:26,484 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 20:08:26,484 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 20:08:26,485 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 20:08:26,485 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 20:08:26,485 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 20:08:26,485 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,485 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,485 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,485 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,485 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,486 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 20:08:26,486 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 20:08:26,486 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 20:08:26,486 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 20:08:26,486 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 20:08:26,486 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 20:08:26,486 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 20:08:26,487 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 20:08:26,487 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 20:08:26,487 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 20:08:26,487 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~a20~0)|))) (.cse3 (= 1 ~a20~0)) (.cse10 (not (<= 15 |old(~a8~0)|))) (.cse12 (<= 5 ~a16~0)) (.cse8 (not (<= 5 |old(~a16~0)|))) (.cse2 (not (<= |old(~a8~0)| 13))) (.cse5 (<= ~a8~0 13)) (.cse4 (<= ~a16~0 |old(~a16~0)|)) (.cse11 (<= ~a17~0 0)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse7 (not (= 1 |old(~a21~0)|))) (.cse9 (not (<= |old(~a17~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (and .cse4 .cse5 .cse3 .cse6) .cse2 .cse7) (or (and (or .cse1 .cse8 .cse7 .cse9) (or .cse10 .cse8 .cse7 .cse9)) (and .cse11 .cse12)) (or .cse10 (and .cse4 (<= 15 ~a8~0) .cse6) .cse7) (or .cse0 .cse2 .cse9 (and .cse4 .cse5 .cse11 .cse3 .cse6)) (or .cse0 .cse10 .cse3 .cse7) (or .cse0 .cse1 .cse7 (and .cse4 .cse3 .cse6)) (or .cse10 .cse12 .cse8 .cse7) (or .cse1 .cse2 (and .cse4 .cse5 .cse6)) (or (and .cse4 .cse11 .cse6) .cse1 .cse7 .cse9))) [2020-07-21 20:08:26,487 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 20:08:26,487 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,488 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,488 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,488 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,488 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 20:08:26,488 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,488 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,488 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 20:08:26,488 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 20:08:26,489 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 20:08:26,489 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 20:08:26,489 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 20:08:26,489 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 20:08:26,489 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 20:08:26,489 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 20:08:26,489 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 20:08:26,489 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 20:08:26,490 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 20:08:26,490 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 20:08:26,490 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,490 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,490 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,490 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,490 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,491 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 20:08:26,491 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,491 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 20:08:26,491 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 20:08:26,491 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 20:08:26,491 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 20:08:26,491 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 20:08:26,491 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 20:08:26,492 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 20:08:26,492 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 20:08:26,492 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 20:08:26,492 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 20:08:26,492 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 20:08:26,492 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 20:08:26,492 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 20:08:26,492 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 20:08:26,493 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,493 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,493 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,493 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,493 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,493 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:08:26,493 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 20:08:26,493 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 20:08:26,494 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 20:08:26,494 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 20:08:26,494 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 20:08:26,494 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 20:08:26,494 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 20:08:26,494 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 20:08:26,494 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 20:08:26,494 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 20:08:26,495 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:08:26,495 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-21 20:08:26,495 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:08:26,495 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:08:26,495 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-21 20:08:26,495 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:08:26,495 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse4 (<= ~a17~0 0)) (.cse2 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (and .cse1 .cse0 .cse2) (and .cse3 .cse0 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse1 .cse0) (and .cse3 .cse1) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)) (and .cse3 .cse4 .cse2))) [2020-07-21 20:08:26,496 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 20:08:26,496 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 20:08:26,496 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse4 (<= ~a17~0 0)) (.cse2 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (and .cse1 .cse0 .cse2) (and .cse3 .cse0 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse1 .cse0) (and .cse3 .cse1) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)) (and .cse3 .cse4 .cse2))) [2020-07-21 20:08:26,496 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:08:26,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:08:26 BoogieIcfgContainer [2020-07-21 20:08:26,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:08:26,524 INFO L168 Benchmark]: Toolchain (without parser) took 11842.78 ms. Allocated memory was 144.2 MB in the beginning and 382.2 MB in the end (delta: 238.0 MB). Free memory was 99.7 MB in the beginning and 260.2 MB in the end (delta: -160.5 MB). Peak memory consumption was 255.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:26,525 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 20:08:26,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.19 ms. Allocated memory was 144.2 MB in the beginning and 203.9 MB in the end (delta: 59.8 MB). Free memory was 99.3 MB in the beginning and 169.7 MB in the end (delta: -70.4 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:26,526 INFO L168 Benchmark]: Boogie Preprocessor took 100.68 ms. Allocated memory is still 203.9 MB. Free memory was 169.7 MB in the beginning and 164.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:26,527 INFO L168 Benchmark]: RCFGBuilder took 1225.04 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 164.6 MB in the beginning and 179.2 MB in the end (delta: -14.6 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:26,528 INFO L168 Benchmark]: TraceAbstraction took 9823.30 ms. Allocated memory was 234.9 MB in the beginning and 382.2 MB in the end (delta: 147.3 MB). Free memory was 179.2 MB in the beginning and 260.2 MB in the end (delta: -81.0 MB). Peak memory consumption was 243.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:26,535 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 687.19 ms. Allocated memory was 144.2 MB in the beginning and 203.9 MB in the end (delta: 59.8 MB). Free memory was 99.3 MB in the beginning and 169.7 MB in the end (delta: -70.4 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.68 ms. Allocated memory is still 203.9 MB. Free memory was 169.7 MB in the beginning and 164.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1225.04 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 164.6 MB in the beginning and 179.2 MB in the end (delta: -14.6 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9823.30 ms. Allocated memory was 234.9 MB in the beginning and 382.2 MB in the end (delta: 147.3 MB). Free memory was 179.2 MB in the beginning and 260.2 MB in the end (delta: -81.0 MB). Peak memory consumption was 243.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 518]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a20)) || !(15 <= \old(a8))) || (15 <= a8 && 1 == a21)) || ((a16 <= 5 && 1 == a21) && 1 == a20)) || ((a8 <= 13 && 1 == a21) && 1 == a20)) || !(\old(a16) <= 5)) || ((a17 <= 0 && a16 <= 5) && 1 == a21)) || (a8 <= 13 && a16 <= 5)) || !(5 <= \old(a16))) || !(1 == \old(a21))) || ((a8 <= 13 && a17 <= 0) && 1 == a20) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.4s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 604 SDtfs, 1062 SDslu, 134 SDs, 0 SdLazy, 2859 SolverSat, 572 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1236 GetRequests, 1218 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1781occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 626 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 72 PreInvPairs, 112 NumberOfFragments, 442 HoareAnnotationTreeSize, 72 FomulaSimplifications, 2315 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 961 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1061 NumberOfCodeBlocks, 1061 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1228 ConstructedInterpolants, 0 QuantifiedInterpolants, 427020 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2808 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 286/290 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...