/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:02:50,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:02:50,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:02:50,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:02:50,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:02:50,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:02:50,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:02:50,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:02:50,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:02:50,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:02:50,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:02:50,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:02:50,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:02:50,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:02:50,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:02:50,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:02:50,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:02:50,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:02:50,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:02:50,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:02:50,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:02:50,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:02:50,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:02:50,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:02:50,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:02:50,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:02:50,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:02:50,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:02:50,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 14:02:50,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:02:50,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:02:50,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:02:50,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:02:50,545 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:02:50,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:02:50,545 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:02:50,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:02:50,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:02:50,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:02:50,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:02:50,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:02:50,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:02:50,552 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:02:50,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:02:50,552 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:02:50,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:02:50,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:02:50,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:02:50,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:02:50,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:02:50,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:02:50,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:02:50,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:02:50,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:02:50,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:02:50,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:02:50,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:02:50,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:02:50,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 14:02:50,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:02:50,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:02:50,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:02:50,887 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:02:50,889 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:02:50,890 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-20 14:02:50,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572972003/04a37510a8ab4b6bb2a70426f08b29ce/FLAGfc4d0cebe [2020-07-20 14:02:51,526 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:02:51,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-20 14:02:51,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572972003/04a37510a8ab4b6bb2a70426f08b29ce/FLAGfc4d0cebe [2020-07-20 14:02:51,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572972003/04a37510a8ab4b6bb2a70426f08b29ce [2020-07-20 14:02:51,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:02:51,800 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:02:51,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:02:51,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:02:51,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:02:51,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:02:51" (1/1) ... [2020-07-20 14:02:51,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c24edc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:02:51, skipping insertion in model container [2020-07-20 14:02:51,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:02:51" (1/1) ... [2020-07-20 14:02:51,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:02:51,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:02:52,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:02:52,302 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:02:52,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:02:52,583 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:02:52,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:02:52 WrapperNode [2020-07-20 14:02:52,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:02:52,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:02:52,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:02:52,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:02:52,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:02:52" (1/1) ... [2020-07-20 14:02:52,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:02:52" (1/1) ... [2020-07-20 14:02:52,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:02:52" (1/1) ... [2020-07-20 14:02:52,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:02:52" (1/1) ... [2020-07-20 14:02:52,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:02:52" (1/1) ... [2020-07-20 14:02:52,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:02:52" (1/1) ... [2020-07-20 14:02:52,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:02:52" (1/1) ... [2020-07-20 14:02:52,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:02:52,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:02:52,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:02:52,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:02:52,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:02:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:02:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:02:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:02:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:02:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:02:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:02:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:02:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:02:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:02:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:02:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:02:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:02:54,054 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:02:54,055 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:02:54,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:02:54 BoogieIcfgContainer [2020-07-20 14:02:54,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:02:54,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:02:54,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:02:54,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:02:54,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:02:51" (1/3) ... [2020-07-20 14:02:54,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9bb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:02:54, skipping insertion in model container [2020-07-20 14:02:54,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:02:52" (2/3) ... [2020-07-20 14:02:54,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9bb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:02:54, skipping insertion in model container [2020-07-20 14:02:54,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:02:54" (3/3) ... [2020-07-20 14:02:54,072 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2020-07-20 14:02:54,085 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:02:54,095 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:02:54,111 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:02:54,138 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:02:54,138 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:02:54,138 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:02:54,139 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:02:54,139 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:02:54,139 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:02:54,139 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:02:54,139 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:02:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 14:02:54,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-20 14:02:54,180 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:02:54,181 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] [2020-07-20 14:02:54,182 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:02:54,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:02:54,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1920403729, now seen corresponding path program 1 times [2020-07-20 14:02:54,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:02:54,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883823255] [2020-07-20 14:02:54,200 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:02:54,411 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:02:54,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:02:54,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:02:54,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:02:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:02:54,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:02:54,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883823255] [2020-07-20 14:02:54,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:02:54,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:02:54,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445804522] [2020-07-20 14:02:54,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:02:54,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:02:54,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:02:54,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:02:54,560 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 14:02:55,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:02:55,553 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-20 14:02:55,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:02:55,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-07-20 14:02:55,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:02:55,572 INFO L225 Difference]: With dead ends: 572 [2020-07-20 14:02:55,572 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 14:02:55,579 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 [2020-07-20 14:02:55,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 14:02:55,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 14:02:55,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 14:02:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-20 14:02:55,647 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 119 [2020-07-20 14:02:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:02:55,649 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-20 14:02:55,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:02:55,649 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-20 14:02:55,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 14:02:55,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:02:55,653 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] [2020-07-20 14:02:55,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:02:55,868 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:02:55,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:02:55,869 INFO L82 PathProgramCache]: Analyzing trace with hash 10659704, now seen corresponding path program 1 times [2020-07-20 14:02:55,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:02:55,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473438345] [2020-07-20 14:02:55,871 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:02:56,030 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:02:56,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:02:56,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:02:56,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:02:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:02:56,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:02:56,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473438345] [2020-07-20 14:02:56,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:02:56,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:02:56,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427027428] [2020-07-20 14:02:56,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:02:56,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:02:56,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:02:56,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:02:56,104 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-20 14:02:56,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:02:56,978 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2020-07-20 14:02:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:02:56,982 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-20 14:02:56,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:02:56,996 INFO L225 Difference]: With dead ends: 842 [2020-07-20 14:02:56,996 INFO L226 Difference]: Without dead ends: 570 [2020-07-20 14:02:56,999 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 [2020-07-20 14:02:57,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-20 14:02:57,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-20 14:02:57,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-20 14:02:57,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-20 14:02:57,068 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 129 [2020-07-20 14:02:57,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:02:57,069 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-20 14:02:57,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:02:57,069 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-20 14:02:57,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-20 14:02:57,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:02:57,074 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] [2020-07-20 14:02:57,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:02:57,288 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:02:57,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:02:57,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1525536778, now seen corresponding path program 1 times [2020-07-20 14:02:57,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:02:57,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118107050] [2020-07-20 14:02:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:02:57,434 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:02:57,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:02:57,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:02:57,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:02:57,488 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:02:57,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:02:57,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118107050] [2020-07-20 14:02:57,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:02:57,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:02:57,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367056149] [2020-07-20 14:02:57,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:02:57,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:02:57,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:02:57,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:02:57,492 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-20 14:02:58,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:02:58,062 INFO L93 Difference]: Finished difference Result 1652 states and 2385 transitions. [2020-07-20 14:02:58,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:02:58,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-07-20 14:02:58,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:02:58,077 INFO L225 Difference]: With dead ends: 1652 [2020-07-20 14:02:58,077 INFO L226 Difference]: Without dead ends: 1102 [2020-07-20 14:02:58,079 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 [2020-07-20 14:02:58,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-07-20 14:02:58,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2020-07-20 14:02:58,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-07-20 14:02:58,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1504 transitions. [2020-07-20 14:02:58,131 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1504 transitions. Word has length 130 [2020-07-20 14:02:58,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:02:58,133 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1504 transitions. [2020-07-20 14:02:58,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:02:58,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1504 transitions. [2020-07-20 14:02:58,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-20 14:02:58,139 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:02:58,139 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] [2020-07-20 14:02:58,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:02:58,353 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:02:58,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:02:58,354 INFO L82 PathProgramCache]: Analyzing trace with hash -423867461, now seen corresponding path program 1 times [2020-07-20 14:02:58,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:02:58,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179802579] [2020-07-20 14:02:58,356 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:02:58,513 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:02:58,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:02:58,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:02:58,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:02:58,582 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:02:58,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:02:58,674 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:02:58,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179802579] [2020-07-20 14:02:58,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:02:58,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-20 14:02:58,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49156665] [2020-07-20 14:02:58,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 14:02:58,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:02:58,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 14:02:58,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:02:58,677 INFO L87 Difference]: Start difference. First operand 1102 states and 1504 transitions. Second operand 8 states. [2020-07-20 14:03:00,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:03:00,573 INFO L93 Difference]: Finished difference Result 4220 states and 6124 transitions. [2020-07-20 14:03:00,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 14:03:00,574 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2020-07-20 14:03:00,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:03:00,615 INFO L225 Difference]: With dead ends: 4220 [2020-07-20 14:03:00,616 INFO L226 Difference]: Without dead ends: 3124 [2020-07-20 14:03:00,626 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 [2020-07-20 14:03:00,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2020-07-20 14:03:00,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 2349. [2020-07-20 14:03:00,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2349 states. [2020-07-20 14:03:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3071 transitions. [2020-07-20 14:03:00,826 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3071 transitions. Word has length 138 [2020-07-20 14:03:00,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:03:00,827 INFO L479 AbstractCegarLoop]: Abstraction has 2349 states and 3071 transitions. [2020-07-20 14:03:00,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 14:03:00,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3071 transitions. [2020-07-20 14:03:00,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-20 14:03:00,838 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:03:00,839 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] [2020-07-20 14:03:01,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:01,053 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:03:01,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:03:01,054 INFO L82 PathProgramCache]: Analyzing trace with hash 127065043, now seen corresponding path program 1 times [2020-07-20 14:03:01,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:03:01,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234179531] [2020-07-20 14:03:01,055 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:01,200 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:03:01,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:03:01,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:03:01,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:03:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:03:01,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:03:01,332 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:03:01,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234179531] [2020-07-20 14:03:01,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:03:01,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:03:01,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537194567] [2020-07-20 14:03:01,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:03:01,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:03:01,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:03:01,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:03:01,338 INFO L87 Difference]: Start difference. First operand 2349 states and 3071 transitions. Second operand 7 states. [2020-07-20 14:03:02,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:03:02,884 INFO L93 Difference]: Finished difference Result 7590 states and 10616 transitions. [2020-07-20 14:03:02,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:03:02,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-07-20 14:03:02,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:03:02,924 INFO L225 Difference]: With dead ends: 7590 [2020-07-20 14:03:02,924 INFO L226 Difference]: Without dead ends: 5251 [2020-07-20 14:03:02,933 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 [2020-07-20 14:03:02,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2020-07-20 14:03:03,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 4567. [2020-07-20 14:03:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4567 states. [2020-07-20 14:03:03,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4567 states to 4567 states and 5929 transitions. [2020-07-20 14:03:03,111 INFO L78 Accepts]: Start accepts. Automaton has 4567 states and 5929 transitions. Word has length 150 [2020-07-20 14:03:03,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:03:03,111 INFO L479 AbstractCegarLoop]: Abstraction has 4567 states and 5929 transitions. [2020-07-20 14:03:03,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:03:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 4567 states and 5929 transitions. [2020-07-20 14:03:03,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-20 14:03:03,123 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:03:03,124 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] [2020-07-20 14:03:03,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:03,339 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:03:03,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:03:03,339 INFO L82 PathProgramCache]: Analyzing trace with hash -763083429, now seen corresponding path program 1 times [2020-07-20 14:03:03,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:03:03,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454119022] [2020-07-20 14:03:03,340 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:03,466 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:03:03,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:03:03,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:03:03,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:03:03,565 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 14:03:03,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:03:03,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454119022] [2020-07-20 14:03:03,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:03:03,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:03:03,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736804093] [2020-07-20 14:03:03,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:03:03,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:03:03,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:03:03,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:03:03,580 INFO L87 Difference]: Start difference. First operand 4567 states and 5929 transitions. Second operand 3 states. [2020-07-20 14:03:04,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:03:04,150 INFO L93 Difference]: Finished difference Result 7887 states and 10249 transitions. [2020-07-20 14:03:04,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:03:04,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-07-20 14:03:04,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:03:04,177 INFO L225 Difference]: With dead ends: 7887 [2020-07-20 14:03:04,177 INFO L226 Difference]: Without dead ends: 4704 [2020-07-20 14:03:04,187 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 [2020-07-20 14:03:04,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2020-07-20 14:03:04,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4428. [2020-07-20 14:03:04,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4428 states. [2020-07-20 14:03:04,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 5614 transitions. [2020-07-20 14:03:04,312 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 5614 transitions. Word has length 154 [2020-07-20 14:03:04,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:03:04,312 INFO L479 AbstractCegarLoop]: Abstraction has 4428 states and 5614 transitions. [2020-07-20 14:03:04,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:03:04,313 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 5614 transitions. [2020-07-20 14:03:04,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-20 14:03:04,325 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:03:04,325 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] [2020-07-20 14:03:04,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:04,541 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:03:04,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:03:04,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1873222613, now seen corresponding path program 1 times [2020-07-20 14:03:04,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:03:04,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241972166] [2020-07-20 14:03:04,542 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:04,657 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:03:04,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:03:04,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:03:04,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:03:04,704 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 14:03:04,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:03:04,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241972166] [2020-07-20 14:03:04,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:03:04,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:03:04,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691760100] [2020-07-20 14:03:04,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:03:04,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:03:04,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:03:04,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:03:04,707 INFO L87 Difference]: Start difference. First operand 4428 states and 5614 transitions. Second operand 3 states. [2020-07-20 14:03:05,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:03:05,305 INFO L93 Difference]: Finished difference Result 7893 states and 10016 transitions. [2020-07-20 14:03:05,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:03:05,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-07-20 14:03:05,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:03:05,330 INFO L225 Difference]: With dead ends: 7893 [2020-07-20 14:03:05,331 INFO L226 Difference]: Without dead ends: 4428 [2020-07-20 14:03:05,341 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 [2020-07-20 14:03:05,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4428 states. [2020-07-20 14:03:05,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4428 to 4428. [2020-07-20 14:03:05,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4428 states. [2020-07-20 14:03:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 5434 transitions. [2020-07-20 14:03:05,442 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 5434 transitions. Word has length 155 [2020-07-20 14:03:05,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:03:05,443 INFO L479 AbstractCegarLoop]: Abstraction has 4428 states and 5434 transitions. [2020-07-20 14:03:05,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:03:05,443 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 5434 transitions. [2020-07-20 14:03:05,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-20 14:03:05,455 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:03:05,455 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] [2020-07-20 14:03:05,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:05,669 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:03:05,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:03:05,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1256524215, now seen corresponding path program 1 times [2020-07-20 14:03:05,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:03:05,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434877976] [2020-07-20 14:03:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:05,782 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:03:05,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:03:05,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:03:05,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:03:05,825 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:03:05,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:03:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:03:05,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434877976] [2020-07-20 14:03:05,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:03:05,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:03:05,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90405323] [2020-07-20 14:03:05,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:03:05,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:03:05,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:03:05,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:03:05,900 INFO L87 Difference]: Start difference. First operand 4428 states and 5434 transitions. Second operand 7 states. [2020-07-20 14:03:06,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:03:06,705 INFO L93 Difference]: Finished difference Result 8479 states and 10446 transitions. [2020-07-20 14:03:06,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:03:06,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-07-20 14:03:06,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:03:06,728 INFO L225 Difference]: With dead ends: 8479 [2020-07-20 14:03:06,729 INFO L226 Difference]: Without dead ends: 5014 [2020-07-20 14:03:06,739 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 [2020-07-20 14:03:06,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5014 states. [2020-07-20 14:03:06,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5014 to 4307. [2020-07-20 14:03:06,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4307 states. [2020-07-20 14:03:06,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 5252 transitions. [2020-07-20 14:03:06,857 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 5252 transitions. Word has length 161 [2020-07-20 14:03:06,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:03:06,857 INFO L479 AbstractCegarLoop]: Abstraction has 4307 states and 5252 transitions. [2020-07-20 14:03:06,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:03:06,858 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 5252 transitions. [2020-07-20 14:03:06,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-20 14:03:06,870 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:03:06,870 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] [2020-07-20 14:03:07,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:07,086 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:03:07,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:03:07,087 INFO L82 PathProgramCache]: Analyzing trace with hash -494413009, now seen corresponding path program 1 times [2020-07-20 14:03:07,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:03:07,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173154827] [2020-07-20 14:03:07,088 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:07,220 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:03:07,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:03:07,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:03:07,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:03:07,278 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 14:03:07,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:03:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 14:03:07,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173154827] [2020-07-20 14:03:07,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:03:07,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-20 14:03:07,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529325960] [2020-07-20 14:03:07,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:03:07,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:03:07,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:03:07,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:03:07,359 INFO L87 Difference]: Start difference. First operand 4307 states and 5252 transitions. Second operand 5 states. [2020-07-20 14:03:07,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:03:07,971 INFO L93 Difference]: Finished difference Result 4315 states and 5263 transitions. [2020-07-20 14:03:07,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 14:03:07,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2020-07-20 14:03:07,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:03:08,007 INFO L225 Difference]: With dead ends: 4315 [2020-07-20 14:03:08,007 INFO L226 Difference]: Without dead ends: 4313 [2020-07-20 14:03:08,010 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 [2020-07-20 14:03:08,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2020-07-20 14:03:08,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4023. [2020-07-20 14:03:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4023 states. [2020-07-20 14:03:08,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4023 states to 4023 states and 4905 transitions. [2020-07-20 14:03:08,097 INFO L78 Accepts]: Start accepts. Automaton has 4023 states and 4905 transitions. Word has length 165 [2020-07-20 14:03:08,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:03:08,098 INFO L479 AbstractCegarLoop]: Abstraction has 4023 states and 4905 transitions. [2020-07-20 14:03:08,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:03:08,098 INFO L276 IsEmpty]: Start isEmpty. Operand 4023 states and 4905 transitions. [2020-07-20 14:03:08,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-20 14:03:08,109 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:03:08,110 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] [2020-07-20 14:03:08,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:08,324 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:03:08,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:03:08,325 INFO L82 PathProgramCache]: Analyzing trace with hash 2102366411, now seen corresponding path program 1 times [2020-07-20 14:03:08,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:03:08,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478999304] [2020-07-20 14:03:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:08,441 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:03:08,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:03:08,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:03:08,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:03:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 14:03:08,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:03:08,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478999304] [2020-07-20 14:03:08,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:03:08,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:03:08,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791167227] [2020-07-20 14:03:08,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:03:08,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:03:08,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:03:08,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:03:08,488 INFO L87 Difference]: Start difference. First operand 4023 states and 4905 transitions. Second operand 3 states. [2020-07-20 14:03:09,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:03:09,007 INFO L93 Difference]: Finished difference Result 4309 states and 5234 transitions. [2020-07-20 14:03:09,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:03:09,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-20 14:03:09,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:03:09,026 INFO L225 Difference]: With dead ends: 4309 [2020-07-20 14:03:09,026 INFO L226 Difference]: Without dead ends: 4307 [2020-07-20 14:03:09,028 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 [2020-07-20 14:03:09,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2020-07-20 14:03:09,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4019. [2020-07-20 14:03:09,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4019 states. [2020-07-20 14:03:09,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 4900 transitions. [2020-07-20 14:03:09,170 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 4900 transitions. Word has length 179 [2020-07-20 14:03:09,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:03:09,171 INFO L479 AbstractCegarLoop]: Abstraction has 4019 states and 4900 transitions. [2020-07-20 14:03:09,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:03:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 4900 transitions. [2020-07-20 14:03:09,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-20 14:03:09,182 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:03:09,183 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] [2020-07-20 14:03:09,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:09,398 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:03:09,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:03:09,399 INFO L82 PathProgramCache]: Analyzing trace with hash -853384892, now seen corresponding path program 1 times [2020-07-20 14:03:09,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:03:09,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132300237] [2020-07-20 14:03:09,400 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:09,562 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:03:09,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:03:09,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:03:09,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:03:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 14:03:09,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:03:09,720 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 14:03:09,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132300237] [2020-07-20 14:03:09,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:03:09,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:03:09,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171294783] [2020-07-20 14:03:09,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:03:09,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:03:09,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:03:09,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:03:09,723 INFO L87 Difference]: Start difference. First operand 4019 states and 4900 transitions. Second operand 7 states. [2020-07-20 14:03:11,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:03:11,201 INFO L93 Difference]: Finished difference Result 6857 states and 8402 transitions. [2020-07-20 14:03:11,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:03:11,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-07-20 14:03:11,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:03:11,204 INFO L225 Difference]: With dead ends: 6857 [2020-07-20 14:03:11,204 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:03:11,219 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 [2020-07-20 14:03:11,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:03:11,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:03:11,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:03:11,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:03:11,221 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 212 [2020-07-20 14:03:11,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:03:11,221 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:03:11,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:03:11,221 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:03:11,221 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:03:11,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:03:11,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:03:12,287 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 133 [2020-07-20 14:03:12,578 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 133 [2020-07-20 14:03:14,326 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 170 DAG size of output: 97 [2020-07-20 14:03:15,153 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 61 [2020-07-20 14:03:15,993 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 61 [2020-07-20 14:03:15,998 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:03:15,998 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)|)) [2020-07-20 14:03:15,998 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:03:15,999 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 14:03:15,999 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 14:03:15,999 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:15,999 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:15,999 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:15,999 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,000 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,000 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,000 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 14:03:16,000 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 14:03:16,000 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 14:03:16,000 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 14:03:16,000 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 14:03:16,001 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 14:03:16,001 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 14:03:16,001 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 14:03:16,001 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 14:03:16,001 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 14:03:16,002 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,002 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,002 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,002 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,002 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,002 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,002 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 14:03:16,002 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 14:03:16,003 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 14:03:16,003 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 14:03:16,003 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 14:03:16,003 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 14:03:16,003 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 14:03:16,003 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 14:03:16,003 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 14:03:16,003 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 14:03:16,003 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 14:03:16,003 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2020-07-20 14:03:16,003 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 14:03:16,004 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 14:03:16,004 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 14:03:16,004 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 14:03:16,004 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,004 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,004 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,004 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,004 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,004 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 14:03:16,004 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 14:03:16,004 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 14:03:16,005 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 14:03:16,005 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 14:03:16,005 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 14:03:16,005 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 14:03:16,005 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 14:03:16,005 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 14:03:16,005 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,005 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,005 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,005 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,005 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,006 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 14:03:16,006 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 14:03:16,006 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 14:03:16,006 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 14:03:16,006 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 14:03:16,006 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 14:03:16,006 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 14:03:16,006 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 14:03:16,007 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 14:03:16,007 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 14:03:16,007 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 14:03:16,007 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 14:03:16,007 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 14:03:16,007 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,007 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,007 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,007 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,008 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 14:03:16,009 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 14:03:16,010 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 14:03:16,010 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 14:03:16,010 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 14:03:16,010 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 14:03:16,010 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 14:03:16,010 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 14:03:16,010 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,010 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,010 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,011 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,011 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,011 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 14:03:16,011 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 14:03:16,011 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 14:03:16,011 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 14:03:16,011 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 14:03:16,011 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 14:03:16,012 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 14:03:16,012 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 14:03:16,012 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,012 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,012 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,012 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,012 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,012 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 14:03:16,013 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 14:03:16,013 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 14:03:16,013 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 14:03:16,013 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 14:03:16,013 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 14:03:16,013 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 14:03:16,013 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 14:03:16,013 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 14:03:16,014 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 14:03:16,014 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)))) [2020-07-20 14:03:16,014 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 14:03:16,014 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,014 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,015 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,015 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,015 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 14:03:16,015 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,015 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,015 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 14:03:16,015 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 14:03:16,015 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 14:03:16,016 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 14:03:16,016 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 14:03:16,016 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 14:03:16,016 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 14:03:16,016 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 14:03:16,016 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 14:03:16,016 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 14:03:16,016 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 14:03:16,017 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 14:03:16,017 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,017 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,017 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,017 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,017 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,017 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 14:03:16,017 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,017 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 14:03:16,018 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 14:03:16,018 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 14:03:16,018 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 14:03:16,018 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 14:03:16,018 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 14:03:16,018 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 14:03:16,018 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 14:03:16,018 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 14:03:16,018 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 14:03:16,018 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 14:03:16,019 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 14:03:16,019 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 14:03:16,019 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 14:03:16,019 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,019 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,019 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,019 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,019 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,019 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 14:03:16,020 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 14:03:16,020 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 14:03:16,020 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 14:03:16,020 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 14:03:16,020 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 14:03:16,020 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 14:03:16,020 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 14:03:16,020 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 14:03:16,020 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 14:03:16,021 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 14:03:16,021 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:03:16,021 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)) [2020-07-20 14:03:16,021 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:03:16,021 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:03:16,021 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)|))) [2020-07-20 14:03:16,022 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 14:03:16,022 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)))) [2020-07-20 14:03:16,022 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 14:03:16,022 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 14:03:16,022 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)))) [2020-07-20 14:03:16,022 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 14:03:16,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:03:16 BoogieIcfgContainer [2020-07-20 14:03:16,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:03:16,048 INFO L168 Benchmark]: Toolchain (without parser) took 24249.39 ms. Allocated memory was 145.2 MB in the beginning and 579.3 MB in the end (delta: 434.1 MB). Free memory was 101.8 MB in the beginning and 461.3 MB in the end (delta: -359.4 MB). Peak memory consumption was 414.1 MB. Max. memory is 7.1 GB. [2020-07-20 14:03:16,049 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 14:03:16,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.91 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 101.4 MB in the beginning and 172.1 MB in the end (delta: -70.7 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-07-20 14:03:16,050 INFO L168 Benchmark]: Boogie Preprocessor took 116.64 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:03:16,051 INFO L168 Benchmark]: RCFGBuilder took 1360.50 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.1 MB in the beginning and 182.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-07-20 14:03:16,052 INFO L168 Benchmark]: TraceAbstraction took 21983.09 ms. Allocated memory was 238.0 MB in the beginning and 579.3 MB in the end (delta: 341.3 MB). Free memory was 180.7 MB in the beginning and 461.3 MB in the end (delta: -280.6 MB). Peak memory consumption was 400.2 MB. Max. memory is 7.1 GB. [2020-07-20 14:03:16,056 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 782.91 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 101.4 MB in the beginning and 172.1 MB in the end (delta: -70.7 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.64 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1360.50 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.1 MB in the beginning and 182.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21983.09 ms. Allocated memory was 238.0 MB in the beginning and 579.3 MB in the end (delta: 341.3 MB). Free memory was 180.7 MB in the beginning and 461.3 MB in the end (delta: -280.6 MB). Peak memory consumption was 400.2 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: 17.3s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 10.8s, 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, 7.3s 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: 1.1s 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, 1.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1692 NumberOfCodeBlocks, 1692 NumberOfCodeBlocksAsserted, 44 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...