/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:31:19,943 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 16:31:19,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:31:19,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:31:19,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:31:19,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:31:19,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:31:19,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:31:19,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:31:19,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:31:19,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:31:19,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:31:19,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:31:19,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:31:19,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:31:19,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:31:19,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:31:19,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:31:19,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 16:31:20,019 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:31:20,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:31:20,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:31:20,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:31:20,020 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:31:20,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:31:20,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:31:20,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:31:20,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:31:20,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:31:20,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:31:20,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:31:20,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:31:20,022 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:31:20,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:31:20,023 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:31:20,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:31:20,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:31:20,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:31:20,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:31:20,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:31:20,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:31:20,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:31:20,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:31:20,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:31:20,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:31:20,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:20,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:31:20,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:31:20,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 16:31:20,289 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:31:20,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:31:20,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:31:20,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:31:20,311 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:31:20,311 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label06.c [2020-07-21 16:31:20,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab78dc1fe/b9f462b6265b42b5b0d8a21c760fee0b/FLAG5dd99286b [2020-07-21 16:31:20,944 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:31:20,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label06.c [2020-07-21 16:31:20,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab78dc1fe/b9f462b6265b42b5b0d8a21c760fee0b/FLAG5dd99286b [2020-07-21 16:31:21,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab78dc1fe/b9f462b6265b42b5b0d8a21c760fee0b [2020-07-21 16:31:21,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:31:21,233 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:31:21,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:31:21,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:31:21,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:31:21,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:31:21" (1/1) ... [2020-07-21 16:31:21,243 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 21.07 04:31:21, skipping insertion in model container [2020-07-21 16:31:21,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:31:21" (1/1) ... [2020-07-21 16:31:21,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:31:21,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:31:21,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:31:21,921 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:31:22,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:31:22,136 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:31:22,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22 WrapperNode [2020-07-21 16:31:22,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:31:22,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:31:22,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:31:22,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:31:22,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2020-07-21 16:31:22,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2020-07-21 16:31:22,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2020-07-21 16:31:22,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2020-07-21 16:31:22,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2020-07-21 16:31:22,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2020-07-21 16:31:22,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2020-07-21 16:31:22,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:31:22,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:31:22,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:31:22,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:31:22,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:31:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:31:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:31:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:31:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:31:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:31:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:31:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:31:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:31:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:31:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:31:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:31:23,808 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:31:23,809 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:31:23,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:31:23 BoogieIcfgContainer [2020-07-21 16:31:23,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:31:23,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:31:23,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:31:23,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:31:23,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:31:21" (1/3) ... [2020-07-21 16:31:23,820 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 21.07 04:31:23, skipping insertion in model container [2020-07-21 16:31:23,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (2/3) ... [2020-07-21 16:31:23,821 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 21.07 04:31:23, skipping insertion in model container [2020-07-21 16:31:23,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:31:23" (3/3) ... [2020-07-21 16:31:23,823 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label06.c [2020-07-21 16:31:23,833 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:31:23,841 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:31:23,855 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:31:23,880 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:31:23,880 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:31:23,880 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:31:23,880 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:31:23,881 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:31:23,881 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:31:23,881 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:31:23,881 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:31:23,906 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 16:31:23,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 16:31:23,921 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:23,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:31:23,923 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:23,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:23,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1251834154, now seen corresponding path program 1 times [2020-07-21 16:31:23,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:23,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196923968] [2020-07-21 16:31:23,940 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:24,199 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:24,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:24,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:31:24,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:24,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:31:24,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196923968] [2020-07-21 16:31:24,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:31:24,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:31:24,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207330196] [2020-07-21 16:31:24,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:31:24,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:24,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:31:24,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:24,429 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 16:31:25,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:25,379 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 16:31:25,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:31:25,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-07-21 16:31:25,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:25,398 INFO L225 Difference]: With dead ends: 572 [2020-07-21 16:31:25,398 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 16:31:25,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:25,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 16:31:25,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 16:31:25,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 16:31:25,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 16:31:25,479 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 130 [2020-07-21 16:31:25,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:25,481 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 16:31:25,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:31:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 16:31:25,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-21 16:31:25,487 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:25,488 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:31:25,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:25,702 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:25,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:25,703 INFO L82 PathProgramCache]: Analyzing trace with hash -932424019, now seen corresponding path program 1 times [2020-07-21 16:31:25,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:25,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776082571] [2020-07-21 16:31:25,705 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:25,851 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:25,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:25,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:31:25,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:25,919 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:25,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:31:25,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776082571] [2020-07-21 16:31:25,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:31:25,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:31:25,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443121170] [2020-07-21 16:31:25,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:31:25,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:25,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:31:25,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:25,923 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 3 states. [2020-07-21 16:31:26,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:26,567 INFO L93 Difference]: Finished difference Result 820 states and 1181 transitions. [2020-07-21 16:31:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:31:26,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-07-21 16:31:26,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:26,576 INFO L225 Difference]: With dead ends: 820 [2020-07-21 16:31:26,576 INFO L226 Difference]: Without dead ends: 548 [2020-07-21 16:31:26,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:26,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-21 16:31:26,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-21 16:31:26,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-21 16:31:26,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 734 transitions. [2020-07-21 16:31:26,618 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 734 transitions. Word has length 140 [2020-07-21 16:31:26,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:26,619 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 734 transitions. [2020-07-21 16:31:26,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:31:26,619 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 734 transitions. [2020-07-21 16:31:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 16:31:26,624 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:26,624 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:31:26,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:26,838 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:26,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:26,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1244428519, now seen corresponding path program 1 times [2020-07-21 16:31:26,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:26,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764299340] [2020-07-21 16:31:26,841 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:26,967 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:26,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:26,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:31:26,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:27,028 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:27,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:31:27,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764299340] [2020-07-21 16:31:27,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:31:27,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:31:27,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874197933] [2020-07-21 16:31:27,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:31:27,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:27,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:31:27,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:27,031 INFO L87 Difference]: Start difference. First operand 548 states and 734 transitions. Second operand 3 states. [2020-07-21 16:31:27,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:27,638 INFO L93 Difference]: Finished difference Result 1360 states and 1853 transitions. [2020-07-21 16:31:27,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:31:27,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-07-21 16:31:27,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:27,648 INFO L225 Difference]: With dead ends: 1360 [2020-07-21 16:31:27,648 INFO L226 Difference]: Without dead ends: 818 [2020-07-21 16:31:27,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:27,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-21 16:31:27,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2020-07-21 16:31:27,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-21 16:31:27,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1060 transitions. [2020-07-21 16:31:27,692 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1060 transitions. Word has length 145 [2020-07-21 16:31:27,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:27,695 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1060 transitions. [2020-07-21 16:31:27,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:31:27,696 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1060 transitions. [2020-07-21 16:31:27,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 16:31:27,711 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:27,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:31:27,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:27,912 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:27,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:27,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1219006392, now seen corresponding path program 1 times [2020-07-21 16:31:27,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:27,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030585149] [2020-07-21 16:31:27,915 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:28,060 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:28,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:28,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:31:28,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:28,147 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:28,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:31:28,252 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:28,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030585149] [2020-07-21 16:31:28,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:31:28,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 16:31:28,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19226691] [2020-07-21 16:31:28,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 16:31:28,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:28,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 16:31:28,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 16:31:28,255 INFO L87 Difference]: Start difference. First operand 818 states and 1060 transitions. Second operand 8 states. [2020-07-21 16:31:30,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:30,182 INFO L93 Difference]: Finished difference Result 3084 states and 4287 transitions. [2020-07-21 16:31:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 16:31:30,182 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 156 [2020-07-21 16:31:30,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:30,200 INFO L225 Difference]: With dead ends: 3084 [2020-07-21 16:31:30,201 INFO L226 Difference]: Without dead ends: 2272 [2020-07-21 16:31:30,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 16:31:30,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2020-07-21 16:31:30,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2065. [2020-07-21 16:31:30,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2065 states. [2020-07-21 16:31:30,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2574 transitions. [2020-07-21 16:31:30,300 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2574 transitions. Word has length 156 [2020-07-21 16:31:30,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:30,300 INFO L479 AbstractCegarLoop]: Abstraction has 2065 states and 2574 transitions. [2020-07-21 16:31:30,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 16:31:30,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2574 transitions. [2020-07-21 16:31:30,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-21 16:31:30,309 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:30,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:31:30,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:30,521 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:30,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:30,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1916878304, now seen corresponding path program 1 times [2020-07-21 16:31:30,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:30,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948168664] [2020-07-21 16:31:30,523 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:30,670 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:30,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:30,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:31:30,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 16:31:30,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:31:30,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948168664] [2020-07-21 16:31:30,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:31:30,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:31:30,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624724714] [2020-07-21 16:31:30,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:31:30,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:30,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:31:30,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:30,718 INFO L87 Difference]: Start difference. First operand 2065 states and 2574 transitions. Second operand 3 states. [2020-07-21 16:31:31,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:31,320 INFO L93 Difference]: Finished difference Result 5617 states and 7130 transitions. [2020-07-21 16:31:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:31:31,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-07-21 16:31:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:31,341 INFO L225 Difference]: With dead ends: 5617 [2020-07-21 16:31:31,341 INFO L226 Difference]: Without dead ends: 3562 [2020-07-21 16:31:31,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:31,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2020-07-21 16:31:31,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 2752. [2020-07-21 16:31:31,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2752 states. [2020-07-21 16:31:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3489 transitions. [2020-07-21 16:31:31,451 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3489 transitions. Word has length 163 [2020-07-21 16:31:31,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:31,453 INFO L479 AbstractCegarLoop]: Abstraction has 2752 states and 3489 transitions. [2020-07-21 16:31:31,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:31:31,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3489 transitions. [2020-07-21 16:31:31,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 16:31:31,466 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:31,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:31:31,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:31,681 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:31,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:31,681 INFO L82 PathProgramCache]: Analyzing trace with hash -2138956377, now seen corresponding path program 1 times [2020-07-21 16:31:31,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:31,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091428433] [2020-07-21 16:31:31,682 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:31,845 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:31,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:31,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:31:31,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 16:31:31,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:31:31,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091428433] [2020-07-21 16:31:31,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:31:31,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:31:31,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279576302] [2020-07-21 16:31:31,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:31:31,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:31,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:31:31,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:31,913 INFO L87 Difference]: Start difference. First operand 2752 states and 3489 transitions. Second operand 3 states. [2020-07-21 16:31:32,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:32,435 INFO L93 Difference]: Finished difference Result 4954 states and 6256 transitions. [2020-07-21 16:31:32,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:31:32,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-07-21 16:31:32,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:32,436 INFO L225 Difference]: With dead ends: 4954 [2020-07-21 16:31:32,436 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:31:32,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:32,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:31:32,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:31:32,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:31:32,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:31:32,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2020-07-21 16:31:32,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:32,453 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:31:32,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:31:32,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:31:32,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:31:32,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:32,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:31:33,444 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 49 [2020-07-21 16:31:33,561 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:31:33,561 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (<= ~a8~0 |old(~a8~0)|) [2020-07-21 16:31:33,561 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:31:33,562 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 16:31:33,562 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 16:31:33,562 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,562 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,562 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,562 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,562 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,562 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,563 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 16:31:33,563 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 16:31:33,563 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 16:31:33,563 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 16:31:33,563 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 16:31:33,563 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 16:31:33,563 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 16:31:33,563 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 16:31:33,563 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 16:31:33,564 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 16:31:33,564 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,564 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,564 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,564 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,564 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,564 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,564 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 16:31:33,565 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 16:31:33,565 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 16:31:33,565 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 16:31:33,565 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 16:31:33,565 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 16:31:33,565 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 16:31:33,565 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 16:31:33,565 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 16:31:33,565 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 16:31:33,566 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 16:31:33,566 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 548) no Hoare annotation was computed. [2020-07-21 16:31:33,566 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 16:31:33,566 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 16:31:33,566 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 16:31:33,566 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 16:31:33,566 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,567 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,567 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,567 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,567 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,567 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 16:31:33,567 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 16:31:33,567 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 16:31:33,568 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 16:31:33,568 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 16:31:33,568 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 16:31:33,568 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 16:31:33,568 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 16:31:33,568 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 16:31:33,568 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,568 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,569 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,569 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,569 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,569 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 16:31:33,569 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 16:31:33,569 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 16:31:33,569 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 16:31:33,569 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 16:31:33,570 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 16:31:33,570 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 16:31:33,570 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 16:31:33,570 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 16:31:33,570 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 16:31:33,570 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 16:31:33,570 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 16:31:33,570 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 16:31:33,571 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,571 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,571 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,571 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,571 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,571 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 16:31:33,571 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 16:31:33,571 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 16:31:33,572 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 16:31:33,572 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 16:31:33,572 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 16:31:33,572 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 16:31:33,572 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 16:31:33,572 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 16:31:33,572 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,572 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,573 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,573 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,573 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,573 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,573 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 16:31:33,573 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,573 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 16:31:33,573 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 16:31:33,574 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 16:31:33,574 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 16:31:33,574 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 16:31:33,574 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 16:31:33,574 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 16:31:33,574 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 16:31:33,574 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 16:31:33,574 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 16:31:33,575 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 16:31:33,575 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 16:31:33,575 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 16:31:33,575 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,575 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,575 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,575 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,575 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,576 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 16:31:33,576 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 16:31:33,576 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 16:31:33,576 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 16:31:33,576 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 16:31:33,576 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 16:31:33,576 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 16:31:33,576 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 16:31:33,577 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,577 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,577 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,577 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,577 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,577 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 16:31:33,577 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 16:31:33,577 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 16:31:33,578 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 16:31:33,578 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 16:31:33,578 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 16:31:33,578 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 16:31:33,578 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 16:31:33,578 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 16:31:33,578 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 16:31:33,579 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse7 (not (<= |old(~a7~0)| 0))) (.cse2 (not (<= |old(~a8~0)| 13))) (.cse4 (not (<= |old(~a17~0)| 0))) (.cse0 (<= ~a8~0 |old(~a8~0)|)) (.cse6 (<= ~a17~0 0)) (.cse1 (not (<= 15 |old(~a8~0)|))) (.cse3 (not (<= |old(~a16~0)| 4))) (.cse5 (<= ~a16~0 4))) (and (or (and .cse0 (<= 15 ~a8~0)) .cse1) (or .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse4) (or .cse7 .cse2 .cse3 .cse5) (or (not (<= |old(~a21~0)| 0)) (and .cse0 (<= ~a21~0 0)) .cse2) (or .cse7 (and .cse0 (<= ~a7~0 0))) (or (and (or .cse2 .cse3) .cse4) (and .cse0 .cse5) (and .cse0 .cse6)) (or .cse1 .cse3 .cse5))) [2020-07-21 16:31:33,579 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 16:31:33,579 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,579 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,579 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,579 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,579 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 16:31:33,579 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,580 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,580 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 16:31:33,580 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 16:31:33,580 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 16:31:33,580 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 16:31:33,580 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 16:31:33,580 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 16:31:33,580 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 16:31:33,580 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 16:31:33,581 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 16:31:33,581 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 16:31:33,581 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 16:31:33,581 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 16:31:33,581 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,581 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,581 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,581 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,581 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,581 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 16:31:33,582 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,582 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 16:31:33,582 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 16:31:33,582 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 16:31:33,582 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 16:31:33,582 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 16:31:33,582 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 16:31:33,582 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 16:31:33,582 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 16:31:33,583 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 16:31:33,583 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 16:31:33,583 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 16:31:33,583 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 16:31:33,583 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 16:31:33,583 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 16:31:33,583 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,583 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,583 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,584 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,584 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,584 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:31:33,584 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 16:31:33,584 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 16:31:33,584 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 16:31:33,584 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 16:31:33,584 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 16:31:33,584 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 16:31:33,585 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 16:31:33,585 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 16:31:33,585 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 16:31:33,585 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 16:31:33,585 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:31:33,585 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= 15 ~a8~0)) [2020-07-21 16:31:33,585 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:31:33,585 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:31:33,585 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (and (<= ~a8~0 |old(~a8~0)|) (<= ~a7~0 0) (<= 15 ~a8~0)) (not (<= |old(~a7~0)| 0))) [2020-07-21 16:31:33,586 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 16:31:33,586 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (<= ~a8~0 13))) (or (and .cse0 (<= ~a16~0 4)) (not (<= 15 |old(~a8~0)|)) (<= ~a17~0 0) (<= ~a7~0 0) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse0 (<= ~a21~0 0)))) [2020-07-21 16:31:33,586 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 16:31:33,586 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 16:31:33,586 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (<= ~a8~0 13))) (or (and .cse0 (<= ~a16~0 4)) (not (<= 15 |old(~a8~0)|)) (<= ~a17~0 0) (<= ~a7~0 0) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse0 (<= ~a21~0 0)))) [2020-07-21 16:31:33,586 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 16:31:33,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:31:33 BoogieIcfgContainer [2020-07-21 16:31:33,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:31:33,607 INFO L168 Benchmark]: Toolchain (without parser) took 12376.45 ms. Allocated memory was 138.4 MB in the beginning and 366.5 MB in the end (delta: 228.1 MB). Free memory was 101.0 MB in the beginning and 293.2 MB in the end (delta: -192.3 MB). Peak memory consumption was 246.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:31:33,608 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 16:31:33,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 903.24 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 100.5 MB in the beginning and 169.0 MB in the end (delta: -68.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-07-21 16:31:33,610 INFO L168 Benchmark]: Boogie Preprocessor took 130.92 ms. Allocated memory is still 205.0 MB. Free memory was 169.0 MB in the beginning and 164.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:31:33,611 INFO L168 Benchmark]: RCFGBuilder took 1545.88 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 164.0 MB in the beginning and 177.3 MB in the end (delta: -13.3 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-07-21 16:31:33,611 INFO L168 Benchmark]: TraceAbstraction took 9789.97 ms. Allocated memory was 237.5 MB in the beginning and 366.5 MB in the end (delta: 129.0 MB). Free memory was 177.3 MB in the beginning and 293.2 MB in the end (delta: -115.9 MB). Peak memory consumption was 223.3 MB. Max. memory is 7.1 GB. [2020-07-21 16:31:33,615 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 903.24 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 100.5 MB in the beginning and 169.0 MB in the end (delta: -68.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.92 ms. Allocated memory is still 205.0 MB. Free memory was 169.0 MB in the beginning and 164.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1545.88 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 164.0 MB in the beginning and 177.3 MB in the end (delta: -13.3 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9789.97 ms. Allocated memory was 237.5 MB in the beginning and 366.5 MB in the end (delta: 129.0 MB). Free memory was 177.3 MB in the beginning and 293.2 MB in the end (delta: -115.9 MB). Peak memory consumption was 223.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 548]: 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: ((((((a8 <= 13 && a16 <= 4) || !(15 <= \old(a8))) || a17 <= 0) || a7 <= 0) || !(\old(a7) <= 0)) || 15 <= a8) || (a8 <= 13 && a21 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.7s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 779 SDtfs, 1116 SDslu, 140 SDs, 0 SdLazy, 3195 SolverSat, 567 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1073 GetRequests, 1058 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2752occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 1017 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 71 PreInvPairs, 111 NumberOfFragments, 216 HoareAnnotationTreeSize, 71 FomulaSimplifications, 1181 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 419 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 915 NumberOfCodeBlocks, 915 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1064 ConstructedInterpolants, 0 QuantifiedInterpolants, 372258 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2484 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 190/194 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...