/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 21:59:19,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 21:59:19,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 21:59:19,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-20 21:59:19,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 21:59:19,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 21:59:19,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 21:59:19,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 21:59:19,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 21:59:19,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 21:59:19,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 21:59:19,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 21:59:19,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 21:59:19,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 21:59:19,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 21:59:19,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 21:59:19,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 21:59:19,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 21:59:19,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 21:59:19,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 21:59:19,548 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 21:59:19,585 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 21:59:19,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 21:59:19,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 21:59:19,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 21:59:19,590 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 21:59:19,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 21:59:19,591 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 21:59:19,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 21:59:19,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 21:59:19,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 21:59:19,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 21:59:19,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 21:59:19,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 21:59:19,596 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 21:59:19,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 21:59:19,596 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 21:59:19,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 21:59:19,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 21:59:19,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 21:59:19,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 21:59:19,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 21:59:19,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 21:59:19,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 21:59:19,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 21:59:19,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 21:59:19,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 21:59:19,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:19,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 21:59:19,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 21:59:19,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 21:59:19,939 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 21:59:19,951 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 21:59:19,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 21:59:19,956 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 21:59:19,956 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 21:59:19,957 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label07.c [2020-07-20 21:59:20,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/188a04cf0/f34ce429543a4cf0998098b7f9a37143/FLAGb80db08e1 [2020-07-20 21:59:20,552 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 21:59:20,553 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label07.c [2020-07-20 21:59:20,567 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/188a04cf0/f34ce429543a4cf0998098b7f9a37143/FLAGb80db08e1 [2020-07-20 21:59:20,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/188a04cf0/f34ce429543a4cf0998098b7f9a37143 [2020-07-20 21:59:20,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 21:59:20,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 21:59:20,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 21:59:20,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 21:59:20,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 21:59:20,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:59:20" (1/1) ... [2020-07-20 21:59:20,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd08649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:20, skipping insertion in model container [2020-07-20 21:59:20,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:59:20" (1/1) ... [2020-07-20 21:59:20,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 21:59:20,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 21:59:21,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 21:59:21,554 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 21:59:21,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 21:59:21,668 INFO L208 MainTranslator]: Completed translation [2020-07-20 21:59:21,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:21 WrapperNode [2020-07-20 21:59:21,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 21:59:21,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 21:59:21,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 21:59:21,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 21:59:21,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:21" (1/1) ... [2020-07-20 21:59:21,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:21" (1/1) ... [2020-07-20 21:59:21,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:21" (1/1) ... [2020-07-20 21:59:21,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:21" (1/1) ... [2020-07-20 21:59:21,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:21" (1/1) ... [2020-07-20 21:59:21,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:21" (1/1) ... [2020-07-20 21:59:21,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:21" (1/1) ... [2020-07-20 21:59:21,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 21:59:21,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 21:59:21,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 21:59:21,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 21:59:21,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 21:59:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 21:59:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 21:59:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 21:59:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 21:59:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 21:59:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 21:59:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 21:59:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 21:59:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 21:59:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 21:59:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 21:59:23,039 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 21:59:23,039 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 21:59:23,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:59:23 BoogieIcfgContainer [2020-07-20 21:59:23,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 21:59:23,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 21:59:23,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 21:59:23,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 21:59:23,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 09:59:20" (1/3) ... [2020-07-20 21:59:23,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a7f8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:59:23, skipping insertion in model container [2020-07-20 21:59:23,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:21" (2/3) ... [2020-07-20 21:59:23,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a7f8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:59:23, skipping insertion in model container [2020-07-20 21:59:23,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:59:23" (3/3) ... [2020-07-20 21:59:23,053 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label07.c [2020-07-20 21:59:23,064 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 21:59:23,072 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 21:59:23,086 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 21:59:23,114 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 21:59:23,115 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 21:59:23,115 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 21:59:23,115 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 21:59:23,116 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 21:59:23,116 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 21:59:23,116 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 21:59:23,116 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 21:59:23,140 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 21:59:23,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-20 21:59:23,153 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:59:23,154 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] [2020-07-20 21:59:23,155 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:59:23,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:59:23,161 INFO L82 PathProgramCache]: Analyzing trace with hash -897711290, now seen corresponding path program 1 times [2020-07-20 21:59:23,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:59:23,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196923968] [2020-07-20 21:59:23,172 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:23,382 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 21:59:23,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:59:23,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 21:59:23,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:59:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 21:59:23,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:59:23,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196923968] [2020-07-20 21:59:23,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:59:23,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:59:23,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207330196] [2020-07-20 21:59:23,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:59:23,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:59:23,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:59:23,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:59:23,530 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 21:59:24,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:59:24,464 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-20 21:59:24,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:59:24,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2020-07-20 21:59:24,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:59:24,482 INFO L225 Difference]: With dead ends: 572 [2020-07-20 21:59:24,483 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 21:59:24,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:59:24,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 21:59:24,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 21:59:24,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 21:59:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-20 21:59:24,558 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 110 [2020-07-20 21:59:24,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:59:24,560 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-20 21:59:24,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:59:24,560 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-20 21:59:24,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 21:59:24,565 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:59:24,566 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] [2020-07-20 21:59:24,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:24,770 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:59:24,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:59:24,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1715018595, now seen corresponding path program 1 times [2020-07-20 21:59:24,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:59:24,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448514582] [2020-07-20 21:59:24,772 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:24,886 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 21:59:24,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:59:24,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 21:59:24,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:59:24,954 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 21:59:24,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:59:24,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448514582] [2020-07-20 21:59:24,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:59:24,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:59:24,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200137739] [2020-07-20 21:59:24,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:59:24,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:59:24,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:59:24,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:59:24,958 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 3 states. [2020-07-20 21:59:25,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:59:25,501 INFO L93 Difference]: Finished difference Result 820 states and 1181 transitions. [2020-07-20 21:59:25,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:59:25,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-20 21:59:25,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:59:25,508 INFO L225 Difference]: With dead ends: 820 [2020-07-20 21:59:25,508 INFO L226 Difference]: Without dead ends: 548 [2020-07-20 21:59:25,510 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 [2020-07-20 21:59:25,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-20 21:59:25,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-20 21:59:25,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-20 21:59:25,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 734 transitions. [2020-07-20 21:59:25,567 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 734 transitions. Word has length 120 [2020-07-20 21:59:25,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:59:25,567 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 734 transitions. [2020-07-20 21:59:25,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:59:25,568 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 734 transitions. [2020-07-20 21:59:25,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-20 21:59:25,582 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:59:25,582 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 21:59:25,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:25,799 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:59:25,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:59:25,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1040259113, now seen corresponding path program 1 times [2020-07-20 21:59:25,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:59:25,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56212392] [2020-07-20 21:59:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:25,915 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 21:59:25,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:59:25,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 21:59:25,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:59:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 21:59:25,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:59:25,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56212392] [2020-07-20 21:59:25,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:59:25,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:59:25,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740912989] [2020-07-20 21:59:26,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:59:26,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:59:26,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:59:26,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:59:26,010 INFO L87 Difference]: Start difference. First operand 548 states and 734 transitions. Second operand 3 states. [2020-07-20 21:59:26,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:59:26,652 INFO L93 Difference]: Finished difference Result 1360 states and 1853 transitions. [2020-07-20 21:59:26,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:59:26,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-20 21:59:26,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:59:26,666 INFO L225 Difference]: With dead ends: 1360 [2020-07-20 21:59:26,666 INFO L226 Difference]: Without dead ends: 818 [2020-07-20 21:59:26,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:59:26,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-20 21:59:26,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2020-07-20 21:59:26,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-20 21:59:26,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1060 transitions. [2020-07-20 21:59:26,722 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1060 transitions. Word has length 125 [2020-07-20 21:59:26,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:59:26,723 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1060 transitions. [2020-07-20 21:59:26,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:59:26,724 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1060 transitions. [2020-07-20 21:59:26,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-20 21:59:26,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:59:26,728 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 21:59:26,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:26,942 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:59:26,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:59:26,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1185141032, now seen corresponding path program 1 times [2020-07-20 21:59:26,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:59:26,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011652991] [2020-07-20 21:59:26,945 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:27,090 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 21:59:27,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:59:27,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 21:59:27,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:59:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 21:59:27,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 21:59:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 21:59:27,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1011652991] [2020-07-20 21:59:27,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 21:59:27,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-20 21:59:27,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263115657] [2020-07-20 21:59:27,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 21:59:27,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:59:27,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 21:59:27,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-20 21:59:27,298 INFO L87 Difference]: Start difference. First operand 818 states and 1060 transitions. Second operand 8 states. [2020-07-20 21:59:29,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:59:29,303 INFO L93 Difference]: Finished difference Result 3084 states and 4287 transitions. [2020-07-20 21:59:29,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 21:59:29,304 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2020-07-20 21:59:29,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:59:29,329 INFO L225 Difference]: With dead ends: 3084 [2020-07-20 21:59:29,329 INFO L226 Difference]: Without dead ends: 2272 [2020-07-20 21:59:29,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-20 21:59:29,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2020-07-20 21:59:29,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2065. [2020-07-20 21:59:29,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2065 states. [2020-07-20 21:59:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2574 transitions. [2020-07-20 21:59:29,440 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2574 transitions. Word has length 136 [2020-07-20 21:59:29,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:59:29,441 INFO L479 AbstractCegarLoop]: Abstraction has 2065 states and 2574 transitions. [2020-07-20 21:59:29,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 21:59:29,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2574 transitions. [2020-07-20 21:59:29,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 21:59:29,449 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:59:29,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 21:59:29,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:29,664 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:59:29,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:59:29,665 INFO L82 PathProgramCache]: Analyzing trace with hash -353548400, now seen corresponding path program 1 times [2020-07-20 21:59:29,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:59:29,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1513781176] [2020-07-20 21:59:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:29,776 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 21:59:29,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:59:29,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 21:59:29,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:59:29,832 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 21:59:29,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:59:29,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1513781176] [2020-07-20 21:59:29,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:59:29,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:59:29,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572189342] [2020-07-20 21:59:29,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:59:29,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:59:29,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:59:29,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:59:29,837 INFO L87 Difference]: Start difference. First operand 2065 states and 2574 transitions. Second operand 3 states. [2020-07-20 21:59:30,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:59:30,567 INFO L93 Difference]: Finished difference Result 5617 states and 7130 transitions. [2020-07-20 21:59:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:59:30,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-20 21:59:30,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:59:30,606 INFO L225 Difference]: With dead ends: 5617 [2020-07-20 21:59:30,606 INFO L226 Difference]: Without dead ends: 3562 [2020-07-20 21:59:30,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:59:30,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2020-07-20 21:59:30,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 2752. [2020-07-20 21:59:30,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2752 states. [2020-07-20 21:59:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3489 transitions. [2020-07-20 21:59:30,729 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3489 transitions. Word has length 143 [2020-07-20 21:59:30,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:59:30,730 INFO L479 AbstractCegarLoop]: Abstraction has 2752 states and 3489 transitions. [2020-07-20 21:59:30,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:59:30,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3489 transitions. [2020-07-20 21:59:30,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-20 21:59:30,745 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:59:30,745 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 21:59:30,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:30,960 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:59:30,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:59:30,963 INFO L82 PathProgramCache]: Analyzing trace with hash 814115991, now seen corresponding path program 1 times [2020-07-20 21:59:30,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:59:30,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937058684] [2020-07-20 21:59:30,964 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:31,114 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 21:59:31,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:59:31,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 21:59:31,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:59:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-20 21:59:31,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:59:31,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937058684] [2020-07-20 21:59:31,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:59:31,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:59:31,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029502598] [2020-07-20 21:59:31,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:59:31,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:59:31,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:59:31,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:59:31,172 INFO L87 Difference]: Start difference. First operand 2752 states and 3489 transitions. Second operand 3 states. [2020-07-20 21:59:31,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:59:31,777 INFO L93 Difference]: Finished difference Result 6578 states and 8490 transitions. [2020-07-20 21:59:31,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:59:31,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-07-20 21:59:31,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:59:31,800 INFO L225 Difference]: With dead ends: 6578 [2020-07-20 21:59:31,800 INFO L226 Difference]: Without dead ends: 3836 [2020-07-20 21:59:31,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:59:31,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2020-07-20 21:59:31,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 3159. [2020-07-20 21:59:31,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3159 states. [2020-07-20 21:59:31,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 4093 transitions. [2020-07-20 21:59:31,930 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 4093 transitions. Word has length 161 [2020-07-20 21:59:31,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:59:31,930 INFO L479 AbstractCegarLoop]: Abstraction has 3159 states and 4093 transitions. [2020-07-20 21:59:31,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:59:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 4093 transitions. [2020-07-20 21:59:31,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-20 21:59:31,941 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:59:31,941 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 21:59:32,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:32,157 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:59:32,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:59:32,157 INFO L82 PathProgramCache]: Analyzing trace with hash -447113640, now seen corresponding path program 1 times [2020-07-20 21:59:32,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:59:32,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140039083] [2020-07-20 21:59:32,158 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:32,305 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 21:59:32,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:59:32,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 21:59:32,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:59:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-20 21:59:32,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 21:59:32,499 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 107 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-20 21:59:32,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140039083] [2020-07-20 21:59:32,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 21:59:32,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 21:59:32,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228111194] [2020-07-20 21:59:32,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 21:59:32,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:59:32,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 21:59:32,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 21:59:32,503 INFO L87 Difference]: Start difference. First operand 3159 states and 4093 transitions. Second operand 6 states. [2020-07-20 21:59:33,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:59:33,296 INFO L93 Difference]: Finished difference Result 6890 states and 8926 transitions. [2020-07-20 21:59:33,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 21:59:33,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2020-07-20 21:59:33,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:59:33,319 INFO L225 Difference]: With dead ends: 6890 [2020-07-20 21:59:33,319 INFO L226 Difference]: Without dead ends: 3741 [2020-07-20 21:59:33,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 374 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 21:59:33,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3741 states. [2020-07-20 21:59:33,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3741 to 3052. [2020-07-20 21:59:33,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3052 states. [2020-07-20 21:59:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 3857 transitions. [2020-07-20 21:59:33,424 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 3857 transitions. Word has length 189 [2020-07-20 21:59:33,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:59:33,425 INFO L479 AbstractCegarLoop]: Abstraction has 3052 states and 3857 transitions. [2020-07-20 21:59:33,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 21:59:33,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 3857 transitions. [2020-07-20 21:59:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-07-20 21:59:33,435 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:59:33,436 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 21:59:33,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:33,649 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:59:33,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:59:33,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1043857589, now seen corresponding path program 1 times [2020-07-20 21:59:33,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:59:33,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292716691] [2020-07-20 21:59:33,651 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:33,816 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 21:59:33,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:59:33,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 21:59:33,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:59:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 21:59:33,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 21:59:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 21:59:34,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292716691] [2020-07-20 21:59:34,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 21:59:34,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 21:59:34,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233039391] [2020-07-20 21:59:34,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 21:59:34,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:59:34,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 21:59:34,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 21:59:34,030 INFO L87 Difference]: Start difference. First operand 3052 states and 3857 transitions. Second operand 6 states. [2020-07-20 21:59:35,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:59:35,095 INFO L93 Difference]: Finished difference Result 8800 states and 12119 transitions. [2020-07-20 21:59:35,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 21:59:35,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 197 [2020-07-20 21:59:35,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:59:35,136 INFO L225 Difference]: With dead ends: 8800 [2020-07-20 21:59:35,136 INFO L226 Difference]: Without dead ends: 5758 [2020-07-20 21:59:35,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 390 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 21:59:35,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2020-07-20 21:59:35,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5002. [2020-07-20 21:59:35,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5002 states. [2020-07-20 21:59:35,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5002 states to 5002 states and 6373 transitions. [2020-07-20 21:59:35,348 INFO L78 Accepts]: Start accepts. Automaton has 5002 states and 6373 transitions. Word has length 197 [2020-07-20 21:59:35,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:59:35,349 INFO L479 AbstractCegarLoop]: Abstraction has 5002 states and 6373 transitions. [2020-07-20 21:59:35,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 21:59:35,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5002 states and 6373 transitions. [2020-07-20 21:59:35,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-20 21:59:35,369 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:59:35,370 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 21:59:35,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:35,584 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:59:35,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:59:35,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1960011780, now seen corresponding path program 1 times [2020-07-20 21:59:35,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:59:35,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525861952] [2020-07-20 21:59:35,585 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:35,809 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 21:59:35,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:59:35,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 21:59:35,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:59:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-07-20 21:59:35,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:59:35,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525861952] [2020-07-20 21:59:35,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:59:35,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:59:35,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193828819] [2020-07-20 21:59:35,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:59:35,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:59:35,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:59:35,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:59:35,861 INFO L87 Difference]: Start difference. First operand 5002 states and 6373 transitions. Second operand 3 states. [2020-07-20 21:59:36,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:59:36,411 INFO L93 Difference]: Finished difference Result 8640 states and 11005 transitions. [2020-07-20 21:59:36,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:59:36,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-07-20 21:59:36,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:59:36,412 INFO L225 Difference]: With dead ends: 8640 [2020-07-20 21:59:36,412 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 21:59:36,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:59:36,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 21:59:36,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 21:59:36,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 21:59:36,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 21:59:36,434 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 199 [2020-07-20 21:59:36,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:59:36,434 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 21:59:36,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:59:36,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 21:59:36,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 21:59:36,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:59:36,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 21:59:37,102 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 66 [2020-07-20 21:59:37,257 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 66 [2020-07-20 21:59:38,546 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 167 DAG size of output: 76 [2020-07-20 21:59:38,823 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-07-20 21:59:39,078 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-07-20 21:59:39,082 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 21:59:39,082 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a20~0 |old(~a20~0)|) (<= |old(~a16~0)| ~a16~0)) [2020-07-20 21:59:39,082 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 21:59:39,082 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 21:59:39,082 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 21:59:39,083 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 21:59:39,084 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 21:59:39,084 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 21:59:39,084 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 21:59:39,084 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 21:59:39,084 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,084 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,084 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,084 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,084 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,084 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,085 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 21:59:39,085 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 21:59:39,085 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 21:59:39,085 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 21:59:39,085 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 21:59:39,085 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 21:59:39,085 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 21:59:39,085 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 21:59:39,085 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 21:59:39,085 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 21:59:39,085 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 21:59:39,086 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 488) no Hoare annotation was computed. [2020-07-20 21:59:39,086 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 21:59:39,086 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 21:59:39,086 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 21:59:39,086 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 21:59:39,086 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,086 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,086 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,086 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,086 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,086 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,087 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,088 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 21:59:39,088 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 21:59:39,088 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 21:59:39,088 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 21:59:39,088 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 21:59:39,088 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 21:59:39,088 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 21:59:39,089 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 21:59:39,089 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 21:59:39,089 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 21:59:39,089 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 21:59:39,089 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 21:59:39,089 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 21:59:39,089 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,089 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,089 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,090 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,090 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,090 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 21:59:39,090 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 21:59:39,090 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 21:59:39,090 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 21:59:39,090 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 21:59:39,090 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 21:59:39,090 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 21:59:39,090 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 21:59:39,091 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,092 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,093 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 21:59:39,094 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 21:59:39,094 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 21:59:39,094 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 21:59:39,094 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 21:59:39,094 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 21:59:39,094 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 21:59:39,094 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 21:59:39,094 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 21:59:39,094 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 21:59:39,094 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (<= ~a21~0 0)) (.cse4 (not (<= |old(~a21~0)| 0))) (.cse9 (<= ~a7~0 0)) (.cse7 (not (<= |old(~a7~0)| 0))) (.cse1 (<= ~a20~0 |old(~a20~0)|)) (.cse3 (<= ~a16~0 5)) (.cse8 (<= |old(~a16~0)| ~a16~0)) (.cse0 (<= ~a8~0 |old(~a8~0)|)) (.cse10 (<= ~a8~0 13)) (.cse12 (<= ~a17~0 0)) (.cse5 (not (<= |old(~a16~0)| 5))) (.cse6 (not (<= |old(~a8~0)| 13))) (.cse13 (not (<= |old(~a17~0)| 0))) (.cse11 (not (<= 15 |old(~a8~0)|))) (.cse14 (not (<= |old(~a16~0)| 4))) (.cse15 (<= ~a16~0 4))) (and (or (and .cse0 .cse1 .cse2 .cse3 (<= 5 ~a16~0)) .cse4 .cse5 .cse6 (not (<= 5 |old(~a16~0)|))) (or (and (or .cse7 .cse5) (or .cse7 .cse6)) (and .cse0 .cse1 .cse8 .cse9 .cse3) (and .cse0 .cse10 .cse1 .cse8 .cse9)) (or .cse11 .cse12 .cse13) (or .cse2 (and (or .cse4 .cse6 .cse13) (or .cse4 .cse6 .cse14))) (or .cse11 .cse5 .cse3) (or .cse11 .cse9 .cse7) (or .cse11 (and .cse0 .cse1 .cse8 (<= 15 ~a8~0))) (or (and .cse1 (or (and .cse0 .cse8 .cse12 .cse3) (and .cse8 (or (and .cse0 .cse10 .cse15) (and .cse0 .cse10 .cse12))))) (and (or .cse5 .cse13) (or .cse6 .cse14) (or .cse6 .cse13))) (or .cse11 .cse14 .cse15))) [2020-07-20 21:59:39,094 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 21:59:39,095 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,095 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,095 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,095 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,095 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 21:59:39,095 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,095 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,095 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 21:59:39,095 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,096 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 21:59:39,097 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 21:59:39,098 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 21:59:39,099 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 21:59:39,099 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 21:59:39,099 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 21:59:39,099 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 21:59:39,099 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 21:59:39,099 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 21:59:39,099 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) [2020-07-20 21:59:39,099 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 21:59:39,099 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 21:59:39,099 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a8~0 |old(~a8~0)|) (<= ~a20~0 |old(~a20~0)|) (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|))) [2020-07-20 21:59:39,099 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 21:59:39,100 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (<= ~a17~0 0)) (.cse2 (<= ~a8~0 13)) (.cse3 (<= ~a7~0 0))) (or (and .cse0 .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse2 (<= ~a16~0 4)) (and .cse2 (<= ~a21~0 0) .cse1) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse3 .cse1) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse0) (not (<= 5 |old(~a16~0)|)) (and .cse2 .cse3))) [2020-07-20 21:59:39,100 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 21:59:39,100 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 21:59:39,100 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (<= ~a17~0 0)) (.cse2 (<= ~a8~0 13)) (.cse3 (<= ~a7~0 0))) (or (and .cse0 .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse2 (<= ~a16~0 4)) (and .cse2 (<= ~a21~0 0) .cse1) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse3 .cse1) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse0) (not (<= 5 |old(~a16~0)|)) (and .cse2 .cse3))) [2020-07-20 21:59:39,100 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 21:59:39,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 09:59:39 BoogieIcfgContainer [2020-07-20 21:59:39,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 21:59:39,123 INFO L168 Benchmark]: Toolchain (without parser) took 18249.60 ms. Allocated memory was 144.2 MB in the beginning and 516.9 MB in the end (delta: 372.8 MB). Free memory was 99.9 MB in the beginning and 188.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 333.8 MB. Max. memory is 7.1 GB. [2020-07-20 21:59:39,124 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 21:59:39,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.85 ms. Allocated memory was 144.2 MB in the beginning and 202.9 MB in the end (delta: 58.7 MB). Free memory was 99.5 MB in the beginning and 168.7 MB in the end (delta: -69.2 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-20 21:59:39,125 INFO L168 Benchmark]: Boogie Preprocessor took 133.37 ms. Allocated memory is still 202.9 MB. Free memory was 168.7 MB in the beginning and 163.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 21:59:39,126 INFO L168 Benchmark]: RCFGBuilder took 1242.10 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 163.6 MB in the beginning and 178.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-07-20 21:59:39,127 INFO L168 Benchmark]: TraceAbstraction took 16074.73 ms. Allocated memory was 234.4 MB in the beginning and 516.9 MB in the end (delta: 282.6 MB). Free memory was 176.6 MB in the beginning and 188.1 MB in the end (delta: -11.6 MB). Peak memory consumption was 320.4 MB. Max. memory is 7.1 GB. [2020-07-20 21:59:39,131 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 was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 792.85 ms. Allocated memory was 144.2 MB in the beginning and 202.9 MB in the end (delta: 58.7 MB). Free memory was 99.5 MB in the beginning and 168.7 MB in the end (delta: -69.2 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.37 ms. Allocated memory is still 202.9 MB. Free memory was 168.7 MB in the beginning and 163.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1242.10 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 163.6 MB in the beginning and 178.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16074.73 ms. Allocated memory was 234.4 MB in the beginning and 516.9 MB in the end (delta: 282.6 MB). Free memory was 176.6 MB in the beginning and 188.1 MB in the end (delta: -11.6 MB). Peak memory consumption was 320.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 488]: 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: ((((((((((a17 <= 0 && a16 <= 5) || !(15 <= \old(a8))) || (a8 <= 13 && a16 <= 4)) || ((a8 <= 13 && a21 <= 0) && a16 <= 5)) || !(\old(a7) <= 0)) || 15 <= a8) || (a7 <= 0 && a16 <= 5)) || !(\old(a16) <= 5)) || (a8 <= 13 && a17 <= 0)) || !(5 <= \old(a16))) || (a8 <= 13 && a7 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.5s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 850 SDtfs, 1936 SDslu, 260 SDs, 0 SdLazy, 5393 SolverSat, 806 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1913 GetRequests, 1879 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5002occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 3139 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 162 PreInvPairs, 236 NumberOfFragments, 445 HoareAnnotationTreeSize, 162 FomulaSimplifications, 11718 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3328 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1380 NumberOfCodeBlocks, 1380 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1890 ConstructedInterpolants, 0 QuantifiedInterpolants, 605286 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4076 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 934/960 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...