/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_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:31:37,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:31:37,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:31:37,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:31:37,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:31:37,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:31:37,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:31:37,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:31:37,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:31:37,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:31:37,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:31:37,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:31:37,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:31:37,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:31:37,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:31:37,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:31:37,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:31:37,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:31:37,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:31:37,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:31:37,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:31:37,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:31:37,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:31:37,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:31:37,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:31:37,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:31:37,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:31:37,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:31:37,483 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 16:31:37,499 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:31:37,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:31:37,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:31:37,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:31:37,501 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:31:37,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:31:37,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:31:37,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:31:37,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:31:37,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:31:37,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:31:37,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:31:37,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:31:37,502 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:31:37,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:31:37,503 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:31:37,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:31:37,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:31:37,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:31:37,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:31:37,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:31:37,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:31:37,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:31:37,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:31:37,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:31:37,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:31:37,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:37,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:31:37,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:31:37,505 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 16:31:37,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:31:37,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:31:37,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:31:37,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:31:37,807 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:31:37,807 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-21 16:31:37,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/582452d3e/d43a34d7fd954316aac9fba469ad7bb8/FLAGe05597549 [2020-07-21 16:31:38,389 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:31:38,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-21 16:31:38,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/582452d3e/d43a34d7fd954316aac9fba469ad7bb8/FLAGe05597549 [2020-07-21 16:31:38,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/582452d3e/d43a34d7fd954316aac9fba469ad7bb8 [2020-07-21 16:31:38,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:31:38,721 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:31:38,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:31:38,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:31:38,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:31:38,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:31:38" (1/1) ... [2020-07-21 16:31:38,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae57041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:38, skipping insertion in model container [2020-07-21 16:31:38,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:31:38" (1/1) ... [2020-07-21 16:31:38,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:31:38,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:31:39,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:31:39,322 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:31:39,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:31:39,459 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:31:39,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:39 WrapperNode [2020-07-21 16:31:39,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:31:39,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:31:39,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:31:39,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:31:39,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:39" (1/1) ... [2020-07-21 16:31:39,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:39" (1/1) ... [2020-07-21 16:31:39,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:39" (1/1) ... [2020-07-21 16:31:39,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:39" (1/1) ... [2020-07-21 16:31:39,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:39" (1/1) ... [2020-07-21 16:31:39,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:39" (1/1) ... [2020-07-21 16:31:39,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:39" (1/1) ... [2020-07-21 16:31:39,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:31:39,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:31:39,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:31:39,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:31:39,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:39" (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 16:31:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:31:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:31:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:31:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:31:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:31:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:31:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:31:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:31:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:31:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:31:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:31:40,842 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:31:40,842 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:31:40,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:31:40 BoogieIcfgContainer [2020-07-21 16:31:40,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:31:40,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:31:40,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:31:40,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:31:40,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:31:38" (1/3) ... [2020-07-21 16:31:40,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56639cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:31:40, skipping insertion in model container [2020-07-21 16:31:40,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:39" (2/3) ... [2020-07-21 16:31:40,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56639cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:31:40, skipping insertion in model container [2020-07-21 16:31:40,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:31:40" (3/3) ... [2020-07-21 16:31:40,858 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2020-07-21 16:31:40,871 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:31:40,880 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:31:40,894 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:31:40,920 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:31:40,920 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:31:40,920 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:31:40,920 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:31:40,921 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:31:40,921 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:31:40,921 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:31:40,921 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:31:40,944 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 16:31:40,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 16:31:40,960 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:40,961 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] [2020-07-21 16:31:40,962 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:40,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:40,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1920403729, now seen corresponding path program 1 times [2020-07-21 16:31:40,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:40,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678177880] [2020-07-21 16:31:40,978 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 16:31:41,202 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:41,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:41,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:31:41,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:41,349 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 16:31:41,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:31:41,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678177880] [2020-07-21 16:31:41,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:31:41,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:31:41,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931930430] [2020-07-21 16:31:41,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:31:41,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:41,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:31:41,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:41,383 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 16:31:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:42,275 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 16:31:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:31:42,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-07-21 16:31:42,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:42,293 INFO L225 Difference]: With dead ends: 572 [2020-07-21 16:31:42,293 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 16:31:42,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 16:31:42,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 16:31:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 16:31:42,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 16:31:42,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 16:31:42,366 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 119 [2020-07-21 16:31:42,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:42,367 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 16:31:42,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:31:42,367 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 16:31:42,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 16:31:42,371 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:42,371 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] [2020-07-21 16:31:42,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:42,585 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:42,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:42,586 INFO L82 PathProgramCache]: Analyzing trace with hash 10659704, now seen corresponding path program 1 times [2020-07-21 16:31:42,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:42,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666197443] [2020-07-21 16:31:42,588 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 16:31:42,719 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:42,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:42,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:31:42,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:42,811 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 16:31:42,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:31:42,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666197443] [2020-07-21 16:31:42,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:31:42,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:31:42,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964929834] [2020-07-21 16:31:42,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:31:42,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:42,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:31:42,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:31:42,815 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-21 16:31:43,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:43,704 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2020-07-21 16:31:43,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:31:43,709 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 16:31:43,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:43,720 INFO L225 Difference]: With dead ends: 842 [2020-07-21 16:31:43,720 INFO L226 Difference]: Without dead ends: 570 [2020-07-21 16:31:43,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 16:31:43,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-21 16:31:43,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-21 16:31:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-21 16:31:43,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-21 16:31:43,780 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 129 [2020-07-21 16:31:43,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:43,780 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-21 16:31:43,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:31:43,781 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-21 16:31:43,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 16:31:43,785 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:43,785 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 16:31:43,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:44,000 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:44,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:44,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1525536778, now seen corresponding path program 1 times [2020-07-21 16:31:44,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:44,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555177617] [2020-07-21 16:31:44,004 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 16:31:44,132 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:44,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:44,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 16:31:44,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:44,202 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:44,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:31:44,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [555177617] [2020-07-21 16:31:44,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:31:44,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:31:44,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598292049] [2020-07-21 16:31:44,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:31:44,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:44,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:31:44,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:44,217 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-21 16:31:44,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:44,799 INFO L93 Difference]: Finished difference Result 1652 states and 2385 transitions. [2020-07-21 16:31:44,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:31:44,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-07-21 16:31:44,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:44,813 INFO L225 Difference]: With dead ends: 1652 [2020-07-21 16:31:44,813 INFO L226 Difference]: Without dead ends: 1102 [2020-07-21 16:31:44,815 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 16:31:44,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-07-21 16:31:44,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2020-07-21 16:31:44,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-07-21 16:31:44,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1504 transitions. [2020-07-21 16:31:44,896 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1504 transitions. Word has length 130 [2020-07-21 16:31:44,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:44,897 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1504 transitions. [2020-07-21 16:31:44,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:31:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1504 transitions. [2020-07-21 16:31:44,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 16:31:44,909 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:44,910 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-07-21 16:31:45,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:45,111 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:45,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:45,112 INFO L82 PathProgramCache]: Analyzing trace with hash -423867461, now seen corresponding path program 1 times [2020-07-21 16:31:45,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:45,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422348674] [2020-07-21 16:31:45,114 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 16:31:45,236 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:45,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:45,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:31:45,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:45,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:31:45,423 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:45,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422348674] [2020-07-21 16:31:45,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:31:45,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 16:31:45,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213187361] [2020-07-21 16:31:45,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 16:31:45,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:45,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 16:31:45,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 16:31:45,427 INFO L87 Difference]: Start difference. First operand 1102 states and 1504 transitions. Second operand 8 states. [2020-07-21 16:31:47,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:47,235 INFO L93 Difference]: Finished difference Result 4220 states and 6124 transitions. [2020-07-21 16:31:47,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 16:31:47,235 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2020-07-21 16:31:47,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:47,264 INFO L225 Difference]: With dead ends: 4220 [2020-07-21 16:31:47,264 INFO L226 Difference]: Without dead ends: 3124 [2020-07-21 16:31:47,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 16:31:47,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2020-07-21 16:31:47,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 2349. [2020-07-21 16:31:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2349 states. [2020-07-21 16:31:47,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3071 transitions. [2020-07-21 16:31:47,435 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3071 transitions. Word has length 138 [2020-07-21 16:31:47,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:47,437 INFO L479 AbstractCegarLoop]: Abstraction has 2349 states and 3071 transitions. [2020-07-21 16:31:47,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 16:31:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3071 transitions. [2020-07-21 16:31:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-21 16:31:47,446 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:47,446 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:31:47,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:47,661 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:47,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:47,663 INFO L82 PathProgramCache]: Analyzing trace with hash 127065043, now seen corresponding path program 1 times [2020-07-21 16:31:47,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:47,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805885552] [2020-07-21 16:31:47,664 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 16:31:47,795 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:47,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:47,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:31:47,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:47,863 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:47,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:31:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:47,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805885552] [2020-07-21 16:31:47,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:31:47,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:31:47,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432898333] [2020-07-21 16:31:47,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:31:47,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:47,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:31:47,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:31:47,961 INFO L87 Difference]: Start difference. First operand 2349 states and 3071 transitions. Second operand 7 states. [2020-07-21 16:31:49,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:49,421 INFO L93 Difference]: Finished difference Result 7590 states and 10616 transitions. [2020-07-21 16:31:49,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:31:49,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-07-21 16:31:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:49,459 INFO L225 Difference]: With dead ends: 7590 [2020-07-21 16:31:49,459 INFO L226 Difference]: Without dead ends: 5251 [2020-07-21 16:31:49,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:31:49,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2020-07-21 16:31:49,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 4567. [2020-07-21 16:31:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4567 states. [2020-07-21 16:31:49,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4567 states to 4567 states and 5929 transitions. [2020-07-21 16:31:49,650 INFO L78 Accepts]: Start accepts. Automaton has 4567 states and 5929 transitions. Word has length 150 [2020-07-21 16:31:49,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:49,651 INFO L479 AbstractCegarLoop]: Abstraction has 4567 states and 5929 transitions. [2020-07-21 16:31:49,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:31:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand 4567 states and 5929 transitions. [2020-07-21 16:31:49,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 16:31:49,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:49,668 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:31:49,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:49,881 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:49,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:49,882 INFO L82 PathProgramCache]: Analyzing trace with hash -763083429, now seen corresponding path program 1 times [2020-07-21 16:31:49,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:49,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250289770] [2020-07-21 16:31:49,883 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 16:31:50,007 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:50,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:50,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:31:50,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:50,045 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 16:31:50,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:31:50,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250289770] [2020-07-21 16:31:50,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:31:50,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:31:50,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132861275] [2020-07-21 16:31:50,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:31:50,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:50,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:31:50,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:50,053 INFO L87 Difference]: Start difference. First operand 4567 states and 5929 transitions. Second operand 3 states. [2020-07-21 16:31:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:50,620 INFO L93 Difference]: Finished difference Result 7887 states and 10249 transitions. [2020-07-21 16:31:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:31:50,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-07-21 16:31:50,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:50,692 INFO L225 Difference]: With dead ends: 7887 [2020-07-21 16:31:50,692 INFO L226 Difference]: Without dead ends: 4704 [2020-07-21 16:31:50,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 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 16:31:50,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2020-07-21 16:31:50,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4428. [2020-07-21 16:31:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4428 states. [2020-07-21 16:31:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 5614 transitions. [2020-07-21 16:31:50,824 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 5614 transitions. Word has length 154 [2020-07-21 16:31:50,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:50,825 INFO L479 AbstractCegarLoop]: Abstraction has 4428 states and 5614 transitions. [2020-07-21 16:31:50,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:31:50,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 5614 transitions. [2020-07-21 16:31:50,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 16:31:50,837 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:50,837 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:51,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:51,052 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:51,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1873222613, now seen corresponding path program 1 times [2020-07-21 16:31:51,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:51,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535463286] [2020-07-21 16:31:51,055 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:51,173 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:51,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:51,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:31:51,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:51,233 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 16:31:51,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:31:51,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1535463286] [2020-07-21 16:31:51,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:31:51,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:31:51,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271691005] [2020-07-21 16:31:51,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:31:51,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:51,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:31:51,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:51,236 INFO L87 Difference]: Start difference. First operand 4428 states and 5614 transitions. Second operand 3 states. [2020-07-21 16:31:51,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:51,747 INFO L93 Difference]: Finished difference Result 7893 states and 10016 transitions. [2020-07-21 16:31:51,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:31:51,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-07-21 16:31:51,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:51,768 INFO L225 Difference]: With dead ends: 7893 [2020-07-21 16:31:51,768 INFO L226 Difference]: Without dead ends: 4428 [2020-07-21 16:31:51,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 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 16:31:51,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4428 states. [2020-07-21 16:31:51,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4428 to 4428. [2020-07-21 16:31:51,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4428 states. [2020-07-21 16:31:51,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 5434 transitions. [2020-07-21 16:31:51,878 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 5434 transitions. Word has length 155 [2020-07-21 16:31:51,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:51,879 INFO L479 AbstractCegarLoop]: Abstraction has 4428 states and 5434 transitions. [2020-07-21 16:31:51,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:31:51,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 5434 transitions. [2020-07-21 16:31:51,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-21 16:31:51,891 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:51,891 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:52,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:52,105 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:52,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:52,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1256524215, now seen corresponding path program 1 times [2020-07-21 16:31:52,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:52,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079590389] [2020-07-21 16:31:52,106 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 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 [2020-07-21 16:31:52,264 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:52,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:52,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 16:31:52,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:52,311 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:52,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:31:52,382 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:31:52,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079590389] [2020-07-21 16:31:52,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:31:52,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:31:52,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441200525] [2020-07-21 16:31:52,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:31:52,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:52,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:31:52,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:31:52,385 INFO L87 Difference]: Start difference. First operand 4428 states and 5434 transitions. Second operand 7 states. [2020-07-21 16:31:53,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:53,135 INFO L93 Difference]: Finished difference Result 8479 states and 10446 transitions. [2020-07-21 16:31:53,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:31:53,136 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-07-21 16:31:53,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:53,157 INFO L225 Difference]: With dead ends: 8479 [2020-07-21 16:31:53,157 INFO L226 Difference]: Without dead ends: 5014 [2020-07-21 16:31:53,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:31:53,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5014 states. [2020-07-21 16:31:53,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5014 to 4307. [2020-07-21 16:31:53,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4307 states. [2020-07-21 16:31:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 5252 transitions. [2020-07-21 16:31:53,272 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 5252 transitions. Word has length 161 [2020-07-21 16:31:53,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:53,273 INFO L479 AbstractCegarLoop]: Abstraction has 4307 states and 5252 transitions. [2020-07-21 16:31:53,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:31:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 5252 transitions. [2020-07-21 16:31:53,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-21 16:31:53,285 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:53,285 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:53,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:53,499 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:53,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:53,499 INFO L82 PathProgramCache]: Analyzing trace with hash -494413009, now seen corresponding path program 1 times [2020-07-21 16:31:53,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:53,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654235813] [2020-07-21 16:31:53,500 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 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 [2020-07-21 16:31:53,703 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:53,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:53,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:31:53,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:53,753 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 16:31:53,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:31:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 16:31:53,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654235813] [2020-07-21 16:31:53,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:31:53,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 16:31:53,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845199038] [2020-07-21 16:31:53,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:31:53,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:53,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:31:53,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:31:53,832 INFO L87 Difference]: Start difference. First operand 4307 states and 5252 transitions. Second operand 5 states. [2020-07-21 16:31:54,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:54,455 INFO L93 Difference]: Finished difference Result 4315 states and 5263 transitions. [2020-07-21 16:31:54,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 16:31:54,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2020-07-21 16:31:54,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:54,482 INFO L225 Difference]: With dead ends: 4315 [2020-07-21 16:31:54,482 INFO L226 Difference]: Without dead ends: 4313 [2020-07-21 16:31:54,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 324 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:31:54,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2020-07-21 16:31:54,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4023. [2020-07-21 16:31:54,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4023 states. [2020-07-21 16:31:54,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4023 states to 4023 states and 4905 transitions. [2020-07-21 16:31:54,573 INFO L78 Accepts]: Start accepts. Automaton has 4023 states and 4905 transitions. Word has length 165 [2020-07-21 16:31:54,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:54,573 INFO L479 AbstractCegarLoop]: Abstraction has 4023 states and 4905 transitions. [2020-07-21 16:31:54,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:31:54,573 INFO L276 IsEmpty]: Start isEmpty. Operand 4023 states and 4905 transitions. [2020-07-21 16:31:54,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 16:31:54,585 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:54,585 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:31:54,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:54,799 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:54,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:54,800 INFO L82 PathProgramCache]: Analyzing trace with hash 2102366411, now seen corresponding path program 1 times [2020-07-21 16:31:54,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:54,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506008808] [2020-07-21 16:31:54,800 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:54,920 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:54,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:54,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:31:54,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 16:31:55,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:31:55,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506008808] [2020-07-21 16:31:55,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:31:55,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:31:55,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885788205] [2020-07-21 16:31:55,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:31:55,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:55,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:31:55,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:55,016 INFO L87 Difference]: Start difference. First operand 4023 states and 4905 transitions. Second operand 3 states. [2020-07-21 16:31:55,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:55,492 INFO L93 Difference]: Finished difference Result 4309 states and 5234 transitions. [2020-07-21 16:31:55,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:31:55,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-21 16:31:55,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:55,503 INFO L225 Difference]: With dead ends: 4309 [2020-07-21 16:31:55,503 INFO L226 Difference]: Without dead ends: 4307 [2020-07-21 16:31:55,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:31:55,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2020-07-21 16:31:55,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4019. [2020-07-21 16:31:55,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4019 states. [2020-07-21 16:31:55,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 4900 transitions. [2020-07-21 16:31:55,574 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 4900 transitions. Word has length 179 [2020-07-21 16:31:55,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:55,575 INFO L479 AbstractCegarLoop]: Abstraction has 4019 states and 4900 transitions. [2020-07-21 16:31:55,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:31:55,575 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 4900 transitions. [2020-07-21 16:31:55,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-21 16:31:55,586 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:31:55,586 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:55,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:55,800 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:31:55,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:31:55,801 INFO L82 PathProgramCache]: Analyzing trace with hash -853384892, now seen corresponding path program 1 times [2020-07-21 16:31:55,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:31:55,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582224475] [2020-07-21 16:31:55,801 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:55,946 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:31:55,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:31:55,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 16:31:55,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:31:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 16:31:55,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:31:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 16:31:56,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582224475] [2020-07-21 16:31:56,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:31:56,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:31:56,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450394246] [2020-07-21 16:31:56,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:31:56,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:31:56,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:31:56,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:31:56,106 INFO L87 Difference]: Start difference. First operand 4019 states and 4900 transitions. Second operand 7 states. [2020-07-21 16:31:57,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:31:57,604 INFO L93 Difference]: Finished difference Result 6857 states and 8402 transitions. [2020-07-21 16:31:57,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:31:57,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-07-21 16:31:57,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:31:57,605 INFO L225 Difference]: With dead ends: 6857 [2020-07-21 16:31:57,605 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:31:57,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:31:57,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:31:57,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:31:57,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:31:57,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:31:57,621 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 212 [2020-07-21 16:31:57,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:31:57,621 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:31:57,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:31:57,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:31:57,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:31:57,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:31:57,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:31:58,653 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 133 [2020-07-21 16:31:58,995 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 133 [2020-07-21 16:32:00,702 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 170 DAG size of output: 97 [2020-07-21 16:32:01,534 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 61 [2020-07-21 16:32:02,369 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 61 [2020-07-21 16:32:02,373 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:32:02,373 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 16:32:02,374 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:32:02,374 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 16:32:02,374 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 16:32:02,374 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,374 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,374 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,374 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,375 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,375 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,375 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 16:32:02,375 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 16:32:02,375 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 16:32:02,375 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 16:32:02,375 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 16:32:02,376 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 16:32:02,376 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 16:32:02,376 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 16:32:02,376 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 16:32:02,376 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 16:32:02,376 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,376 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,377 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,377 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,377 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,377 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,377 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 16:32:02,377 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 16:32:02,377 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 16:32:02,377 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 16:32:02,377 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 16:32:02,378 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,379 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,379 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,379 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,379 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,379 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 16:32:02,379 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 16:32:02,379 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 16:32:02,379 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 16:32:02,379 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 16:32:02,380 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 16:32:02,380 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 16:32:02,380 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 16:32:02,380 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 16:32:02,380 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,380 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,380 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,380 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,380 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,381 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 16:32:02,381 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 16:32:02,381 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 16:32:02,381 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 16:32:02,381 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 16:32:02,381 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 16:32:02,381 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 16:32:02,381 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 16:32:02,382 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 16:32:02,382 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 16:32:02,382 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 16:32:02,382 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 16:32:02,382 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 16:32:02,382 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,382 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,382 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,383 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,383 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,383 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 16:32:02,383 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 16:32:02,383 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 16:32:02,383 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 16:32:02,383 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 16:32:02,383 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 16:32:02,384 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 16:32:02,384 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 16:32:02,384 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 16:32:02,384 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,384 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,384 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,384 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,384 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,384 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,385 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 16:32:02,385 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,385 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 16:32:02,385 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 16:32:02,385 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 16:32:02,385 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 16:32:02,385 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 16:32:02,385 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 16:32:02,385 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 16:32:02,386 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 16:32:02,386 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 16:32:02,386 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 16:32:02,386 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 16:32:02,386 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 16:32:02,386 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 16:32:02,386 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,386 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,386 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,387 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,387 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,387 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 16:32:02,387 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 16:32:02,387 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 16:32:02,387 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 16:32:02,387 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 16:32:02,387 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 16:32:02,388 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 16:32:02,388 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 16:32:02,388 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,388 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,388 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,388 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,388 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,388 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 16:32:02,389 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 16:32:02,389 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 16:32:02,389 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 16:32:02,389 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 16:32:02,389 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 16:32:02,389 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 16:32:02,389 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 16:32:02,389 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 16:32:02,390 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 16:32:02,390 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~a20~0)|))) (.cse21 (not (<= |old(~a8~0)| 13))) (.cse6 (not (<= |old(~a16~0)| 5))) (.cse24 (not (< |old(~a8~0)| 15))) (.cse13 (not (<= 5 |old(~a16~0)|))) (.cse3 (= 1 ~a20~0)) (.cse7 (<= ~a8~0 |old(~a8~0)|)) (.cse19 (<= ~a16~0 |old(~a16~0)|)) (.cse9 (<= ~a16~0 5)) (.cse11 (<= 5 ~a16~0))) (let ((.cse8 (= 1 ~a7~0)) (.cse20 (not (<= |old(~a21~0)| 0))) (.cse5 (not (= 1 |old(~a7~0)|))) (.cse23 (= ~a7~0 |old(~a7~0)|)) (.cse16 (= 1 ~a21~0)) (.cse17 (or (and .cse7 .cse19 (<= ~a8~0 13) .cse11 .cse3) (and .cse7 .cse19 .cse9 .cse11 (< ~a8~0 15)))) (.cse15 (<= 14 ~a8~0)) (.cse12 (= ~a21~0 |old(~a21~0)|)) (.cse18 (not (<= 14 |old(~a8~0)|))) (.cse22 (not (<= |old(~a16~0)| 4))) (.cse14 (and (or .cse0 .cse21) (or .cse6 .cse24 .cse13))) (.cse1 (not (<= 15 |old(~a8~0)|))) (.cse2 (not (<= |old(~a7~0)| 0))) (.cse10 (<= 15 ~a8~0)) (.cse4 (not (= 1 |old(~a21~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse6 (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) .cse13 .cse4) (or .cse14 (and .cse15 .cse16 .cse12 .cse17) .cse18 .cse4) (or (and .cse7 .cse19 .cse8 .cse12) .cse5 .cse20 .cse21 .cse22) (or (and .cse7 .cse19 .cse23 .cse11 .cse12) .cse1 .cse2 .cse13 .cse4) (or .cse1 .cse5 (and .cse7 .cse19 .cse8 .cse10 .cse12) .cse22 .cse4) (or (and .cse8 .cse12 .cse17) .cse14 .cse20 .cse5 .cse13) (or (and .cse23 (or (and .cse7 .cse19 .cse3 .cse12) (and .cse19 .cse7 (<= ~a7~0 0) .cse9 .cse12) (and .cse16 .cse12 .cse17) (and .cse7 .cse19 .cse15 .cse12))) (and (or .cse18 .cse22 .cse24 .cse4) (or .cse2 .cse6 .cse4) (or .cse14 .cse4))) (or .cse1 .cse2 .cse10 .cse4)))) [2020-07-21 16:32:02,390 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 16:32:02,390 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,390 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,390 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,391 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,391 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 16:32:02,391 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,391 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,391 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 16:32:02,391 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 16:32:02,391 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 16:32:02,391 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 16:32:02,391 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 16:32:02,392 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 16:32:02,392 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 16:32:02,392 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 16:32:02,392 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 16:32:02,392 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 16:32:02,392 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 16:32:02,392 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 16:32:02,392 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,392 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,393 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,393 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,393 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,393 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 16:32:02,393 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,393 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 16:32:02,393 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 16:32:02,393 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 16:32:02,394 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 16:32:02,394 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 16:32:02,394 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 16:32:02,394 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 16:32:02,394 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 16:32:02,394 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 16:32:02,394 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 16:32:02,394 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 16:32:02,394 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 16:32:02,395 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 16:32:02,395 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 16:32:02,395 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,395 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,395 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,395 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,395 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,395 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 16:32:02,395 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 16:32:02,395 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 16:32:02,396 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 16:32:02,396 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 16:32:02,396 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 16:32:02,396 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 16:32:02,396 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 16:32:02,396 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 16:32:02,396 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 16:32:02,396 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 16:32:02,397 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:32:02,397 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) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-21 16:32:02,397 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:32:02,397 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:32:02,397 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-21 16:32:02,397 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 16:32:02,398 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse11 (<= ~a16~0 5)) (.cse4 (< ~a8~0 15)) (.cse7 (<= ~a8~0 13)) (.cse12 (<= 5 ~a16~0)) (.cse9 (= 1 ~a20~0))) (let ((.cse3 (<= ~a16~0 4)) (.cse1 (<= 15 ~a8~0)) (.cse2 (= 1 ~a21~0)) (.cse10 (<= ~a7~0 0)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse0 (= 1 ~a7~0)) (.cse8 (<= ~a21~0 0)) (.cse5 (or (and .cse11 .cse12 .cse4) (and .cse7 .cse12 .cse9)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 14 ~a8~0) .cse2 .cse4 .cse3) (and .cse5 .cse6) (not (<= |old(~a7~0)| 0)) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse0 .cse8 .cse3) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse7 .cse2 .cse9) (and .cse10 .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse11 .cse12 .cse2) (and .cse10 .cse11 .cse6) (not (= 1 |old(~a21~0)|)) (and .cse0 .cse8 .cse5)))) [2020-07-21 16:32:02,398 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 16:32:02,398 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 16:32:02,398 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse11 (<= ~a16~0 5)) (.cse4 (< ~a8~0 15)) (.cse7 (<= ~a8~0 13)) (.cse12 (<= 5 ~a16~0)) (.cse9 (= 1 ~a20~0))) (let ((.cse3 (<= ~a16~0 4)) (.cse1 (<= 15 ~a8~0)) (.cse2 (= 1 ~a21~0)) (.cse10 (<= ~a7~0 0)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse0 (= 1 ~a7~0)) (.cse8 (<= ~a21~0 0)) (.cse5 (or (and .cse11 .cse12 .cse4) (and .cse7 .cse12 .cse9)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 14 ~a8~0) .cse2 .cse4 .cse3) (and .cse5 .cse6) (not (<= |old(~a7~0)| 0)) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse0 .cse8 .cse3) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse7 .cse2 .cse9) (and .cse10 .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse11 .cse12 .cse2) (and .cse10 .cse11 .cse6) (not (= 1 |old(~a21~0)|)) (and .cse0 .cse8 .cse5)))) [2020-07-21 16:32:02,398 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 16:32:02,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:32:02 BoogieIcfgContainer [2020-07-21 16:32:02,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:32:02,430 INFO L168 Benchmark]: Toolchain (without parser) took 23707.40 ms. Allocated memory was 136.8 MB in the beginning and 594.0 MB in the end (delta: 457.2 MB). Free memory was 98.2 MB in the beginning and 413.8 MB in the end (delta: -315.6 MB). Peak memory consumption was 489.2 MB. Max. memory is 7.1 GB. [2020-07-21 16:32:02,431 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 16:32:02,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.61 ms. Allocated memory was 136.8 MB in the beginning and 203.9 MB in the end (delta: 67.1 MB). Free memory was 97.8 MB in the beginning and 169.7 MB in the end (delta: -71.9 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-07-21 16:32:02,432 INFO L168 Benchmark]: Boogie Preprocessor took 101.89 ms. Allocated memory is still 203.9 MB. Free memory was 169.7 MB in the beginning and 164.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 16:32:02,441 INFO L168 Benchmark]: RCFGBuilder took 1286.52 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 164.6 MB in the beginning and 179.3 MB in the end (delta: -14.7 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2020-07-21 16:32:02,442 INFO L168 Benchmark]: TraceAbstraction took 21574.99 ms. Allocated memory was 233.8 MB in the beginning and 594.0 MB in the end (delta: 360.2 MB). Free memory was 177.9 MB in the beginning and 413.8 MB in the end (delta: -235.9 MB). Peak memory consumption was 471.9 MB. Max. memory is 7.1 GB. [2020-07-21 16:32:02,446 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 136.8 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 737.61 ms. Allocated memory was 136.8 MB in the beginning and 203.9 MB in the end (delta: 67.1 MB). Free memory was 97.8 MB in the beginning and 169.7 MB in the end (delta: -71.9 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.89 ms. Allocated memory is still 203.9 MB. Free memory was 169.7 MB in the beginning and 164.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1286.52 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 164.6 MB in the beginning and 179.3 MB in the end (delta: -14.7 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21574.99 ms. Allocated memory was 233.8 MB in the beginning and 594.0 MB in the end (delta: 360.2 MB). Free memory was 177.9 MB in the beginning and 413.8 MB in the end (delta: -235.9 MB). Peak memory consumption was 471.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 515]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((1 == a7 && 15 <= a8) && 1 == a21) && a16 <= 4) || (((14 <= a8 && 1 == a21) && a8 < 15) && a16 <= 4)) || ((((a16 <= 5 && 5 <= a16) && a8 < 15) || ((a8 <= 13 && 5 <= a16) && 1 == a20)) && a21 == \old(a21))) || !(\old(a7) <= 0)) || !(5 <= \old(a16))) || (((a8 <= 13 && 1 == a7) && a21 <= 0) && a16 <= 4)) || !(1 == \old(a20))) || !(15 <= \old(a8))) || ((a8 <= 13 && 1 == a21) && 1 == a20)) || ((a7 <= 0 && 15 <= a8) && 1 == a21)) || !(\old(a16) <= 5)) || (((1 == a7 && a16 <= 5) && 5 <= a16) && 1 == a21)) || ((a7 <= 0 && a16 <= 5) && a21 == \old(a21))) || !(1 == \old(a21))) || ((1 == a7 && a21 <= 0) && (((a16 <= 5 && 5 <= a16) && a8 < 15) || ((a8 <= 13 && 5 <= a16) && 1 == a20))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.9s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 388 SDtfs, 3444 SDslu, 355 SDs, 0 SdLazy, 7754 SolverSat, 1183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2531 GetRequests, 2481 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4567occurred 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: 1.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 3034 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 173 PreInvPairs, 253 NumberOfFragments, 871 HoareAnnotationTreeSize, 173 FomulaSimplifications, 169930 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 57084 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1692 NumberOfCodeBlocks, 1692 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2502 ConstructedInterpolants, 0 QuantifiedInterpolants, 868536 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4686 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 710/755 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...