/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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:54:15,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:54:15,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:54:15,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:54:15,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:54:15,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:54:15,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:54:15,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:54:15,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:54:15,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:54:15,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:54:15,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:54:15,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:54:15,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:54:15,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:54:15,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:54:15,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:54:15,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:54:15,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:54:15,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:54:15,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:54:15,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:54:15,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:54:15,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:54:15,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:54:15,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:54:15,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:54:15,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:54:15,664 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 13:54:15,701 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:54:15,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:54:15,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:54:15,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:54:15,707 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:54:15,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:54:15,707 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:54:15,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:54:15,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:54:15,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:54:15,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:54:15,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:54:15,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:54:15,712 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:54:15,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:54:15,712 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:54:15,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:54:15,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:54:15,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:54:15,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:54:15,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:54:15,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:54:15,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:54:15,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:54:15,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:54:15,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:54:15,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:15,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:54:15,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:54:15,715 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 -> 2 [2020-07-21 13:54:16,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:54:16,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:54:16,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:54:16,059 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:54:16,060 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:54:16,061 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-07-21 13:54:16,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c7d56aaa/379018bfd71140b1a595fabdd0eb2430/FLAG3fc4bca0c [2020-07-21 13:54:16,685 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:54:16,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-07-21 13:54:16,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c7d56aaa/379018bfd71140b1a595fabdd0eb2430/FLAG3fc4bca0c [2020-07-21 13:54:17,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c7d56aaa/379018bfd71140b1a595fabdd0eb2430 [2020-07-21 13:54:17,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:54:17,022 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:54:17,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:54:17,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:54:17,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:54:17,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:54:17" (1/1) ... [2020-07-21 13:54:17,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a5b008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:17, skipping insertion in model container [2020-07-21 13:54:17,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:54:17" (1/1) ... [2020-07-21 13:54:17,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:54:17,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:54:17,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:54:17,677 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:54:17,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:54:17,872 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:54:17,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:17 WrapperNode [2020-07-21 13:54:17,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:54:17,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:54:17,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:54:17,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:54:17,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:17" (1/1) ... [2020-07-21 13:54:17,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:17" (1/1) ... [2020-07-21 13:54:17,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:17" (1/1) ... [2020-07-21 13:54:17,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:17" (1/1) ... [2020-07-21 13:54:17,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:17" (1/1) ... [2020-07-21 13:54:17,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:17" (1/1) ... [2020-07-21 13:54:17,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:17" (1/1) ... [2020-07-21 13:54:18,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:54:18,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:54:18,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:54:18,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:54:18,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:54:18,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:54:18,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:54:18,088 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:54:18,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:54:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:54:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:54:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:54:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:54:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:54:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:54:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:54:19,581 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:54:19,581 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:54:19,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:54:19 BoogieIcfgContainer [2020-07-21 13:54:19,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:54:19,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:54:19,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:54:19,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:54:19,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:54:17" (1/3) ... [2020-07-21 13:54:19,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f55416f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:54:19, skipping insertion in model container [2020-07-21 13:54:19,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:17" (2/3) ... [2020-07-21 13:54:19,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f55416f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:54:19, skipping insertion in model container [2020-07-21 13:54:19,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:54:19" (3/3) ... [2020-07-21 13:54:19,596 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label40.c [2020-07-21 13:54:19,606 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:54:19,614 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:54:19,627 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:54:19,653 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:54:19,653 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:54:19,654 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:54:19,654 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:54:19,654 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:54:19,654 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:54:19,654 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:54:19,655 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:54:19,676 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 13:54:19,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-21 13:54:19,685 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:19,687 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] [2020-07-21 13:54:19,687 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:19,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:19,693 INFO L82 PathProgramCache]: Analyzing trace with hash -576444522, now seen corresponding path program 1 times [2020-07-21 13:54:19,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:19,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138973347] [2020-07-21 13:54:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:19,834 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:19,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:19,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:54:19,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:19,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:19,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:19,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138973347] [2020-07-21 13:54:19,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:19,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:54:19,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255752994] [2020-07-21 13:54:19,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:54:19,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:19,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:54:19,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:54:19,953 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 13:54:21,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:21,034 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 13:54:21,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:54:21,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-07-21 13:54:21,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:21,067 INFO L225 Difference]: With dead ends: 571 [2020-07-21 13:54:21,067 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 13:54:21,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:54:21,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 13:54:21,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 13:54:21,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 13:54:21,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-21 13:54:21,203 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 55 [2020-07-21 13:54:21,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:21,204 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-21 13:54:21,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:54:21,204 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-21 13:54:21,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 13:54:21,218 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:21,219 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 13:54:21,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:21,421 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:21,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:21,422 INFO L82 PathProgramCache]: Analyzing trace with hash -913027315, now seen corresponding path program 1 times [2020-07-21 13:54:21,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:21,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118027389] [2020-07-21 13:54:21,424 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:21,520 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:21,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:21,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:54:21,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:21,581 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:21,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:21,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118027389] [2020-07-21 13:54:21,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:21,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:54:21,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766463158] [2020-07-21 13:54:21,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:54:21,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:21,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:54:21,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:54:21,586 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 5 states. [2020-07-21 13:54:22,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:22,535 INFO L93 Difference]: Finished difference Result 741 states and 1138 transitions. [2020-07-21 13:54:22,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:54:22,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-07-21 13:54:22,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:22,545 INFO L225 Difference]: With dead ends: 741 [2020-07-21 13:54:22,546 INFO L226 Difference]: Without dead ends: 453 [2020-07-21 13:54:22,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:54:22,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-07-21 13:54:22,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2020-07-21 13:54:22,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-07-21 13:54:22,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 624 transitions. [2020-07-21 13:54:22,597 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 624 transitions. Word has length 128 [2020-07-21 13:54:22,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:22,598 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 624 transitions. [2020-07-21 13:54:22,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:54:22,599 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 624 transitions. [2020-07-21 13:54:22,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 13:54:22,601 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:22,601 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 13:54:22,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:22,816 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:22,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:22,817 INFO L82 PathProgramCache]: Analyzing trace with hash 952189433, now seen corresponding path program 1 times [2020-07-21 13:54:22,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:22,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353705410] [2020-07-21 13:54:22,818 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:22,921 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:22,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:22,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:54:22,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:22,970 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:22,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:22,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353705410] [2020-07-21 13:54:22,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:22,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:54:22,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915218550] [2020-07-21 13:54:22,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:54:22,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:22,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:54:22,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:54:22,973 INFO L87 Difference]: Start difference. First operand 443 states and 624 transitions. Second operand 3 states. [2020-07-21 13:54:23,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:23,761 INFO L93 Difference]: Finished difference Result 1313 states and 1889 transitions. [2020-07-21 13:54:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:54:23,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2020-07-21 13:54:23,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:23,773 INFO L225 Difference]: With dead ends: 1313 [2020-07-21 13:54:23,773 INFO L226 Difference]: Without dead ends: 876 [2020-07-21 13:54:23,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:54:23,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2020-07-21 13:54:23,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 731. [2020-07-21 13:54:23,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-07-21 13:54:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1040 transitions. [2020-07-21 13:54:23,825 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1040 transitions. Word has length 134 [2020-07-21 13:54:23,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:23,826 INFO L479 AbstractCegarLoop]: Abstraction has 731 states and 1040 transitions. [2020-07-21 13:54:23,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:54:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1040 transitions. [2020-07-21 13:54:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 13:54:23,830 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:23,830 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 13:54:24,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:24,045 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:24,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:24,046 INFO L82 PathProgramCache]: Analyzing trace with hash -296475546, now seen corresponding path program 1 times [2020-07-21 13:54:24,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:24,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836303470] [2020-07-21 13:54:24,048 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:24,163 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:24,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:24,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:54:24,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:24,229 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:24,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:24,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836303470] [2020-07-21 13:54:24,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:24,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:54:24,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707529301] [2020-07-21 13:54:24,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:54:24,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:24,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:54:24,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:54:24,233 INFO L87 Difference]: Start difference. First operand 731 states and 1040 transitions. Second operand 5 states. [2020-07-21 13:54:25,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:25,293 INFO L93 Difference]: Finished difference Result 1476 states and 2124 transitions. [2020-07-21 13:54:25,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:54:25,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-07-21 13:54:25,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:25,310 INFO L225 Difference]: With dead ends: 1476 [2020-07-21 13:54:25,311 INFO L226 Difference]: Without dead ends: 751 [2020-07-21 13:54:25,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:54:25,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2020-07-21 13:54:25,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 739. [2020-07-21 13:54:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-07-21 13:54:25,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 906 transitions. [2020-07-21 13:54:25,361 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 906 transitions. Word has length 167 [2020-07-21 13:54:25,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:25,363 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 906 transitions. [2020-07-21 13:54:25,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:54:25,363 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 906 transitions. [2020-07-21 13:54:25,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-21 13:54:25,368 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:25,368 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 13:54:25,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:25,576 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:25,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:25,577 INFO L82 PathProgramCache]: Analyzing trace with hash 528848677, now seen corresponding path program 1 times [2020-07-21 13:54:25,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:25,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014766099] [2020-07-21 13:54:25,579 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:25,686 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:25,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:25,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:54:25,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:25,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:25,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014766099] [2020-07-21 13:54:25,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:25,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:54:25,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260781842] [2020-07-21 13:54:25,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:54:25,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:25,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:54:25,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:54:25,775 INFO L87 Difference]: Start difference. First operand 739 states and 906 transitions. Second operand 5 states. [2020-07-21 13:54:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:26,738 INFO L93 Difference]: Finished difference Result 1641 states and 1996 transitions. [2020-07-21 13:54:26,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:54:26,741 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2020-07-21 13:54:26,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:26,749 INFO L225 Difference]: With dead ends: 1641 [2020-07-21 13:54:26,749 INFO L226 Difference]: Without dead ends: 908 [2020-07-21 13:54:26,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:54:26,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2020-07-21 13:54:26,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 892. [2020-07-21 13:54:26,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 892 states. [2020-07-21 13:54:26,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1069 transitions. [2020-07-21 13:54:26,802 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1069 transitions. Word has length 172 [2020-07-21 13:54:26,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:26,803 INFO L479 AbstractCegarLoop]: Abstraction has 892 states and 1069 transitions. [2020-07-21 13:54:26,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:54:26,803 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1069 transitions. [2020-07-21 13:54:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-07-21 13:54:26,812 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:26,813 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:54:27,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:27,029 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:27,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:27,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1123243390, now seen corresponding path program 1 times [2020-07-21 13:54:27,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:27,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857024914] [2020-07-21 13:54:27,032 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:27,162 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:27,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:27,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:54:27,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:27,182 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:54:27,535 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 13:54:27,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:27,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857024914] [2020-07-21 13:54:27,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:27,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:54:27,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371147415] [2020-07-21 13:54:27,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:54:27,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:27,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:54:27,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:54:27,540 INFO L87 Difference]: Start difference. First operand 892 states and 1069 transitions. Second operand 3 states. [2020-07-21 13:54:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:28,524 INFO L93 Difference]: Finished difference Result 2219 states and 2749 transitions. [2020-07-21 13:54:28,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:54:28,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2020-07-21 13:54:28,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:28,532 INFO L225 Difference]: With dead ends: 2219 [2020-07-21 13:54:28,533 INFO L226 Difference]: Without dead ends: 1476 [2020-07-21 13:54:28,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:54:28,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2020-07-21 13:54:28,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1333. [2020-07-21 13:54:28,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1333 states. [2020-07-21 13:54:28,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1605 transitions. [2020-07-21 13:54:28,579 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1605 transitions. Word has length 237 [2020-07-21 13:54:28,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:28,579 INFO L479 AbstractCegarLoop]: Abstraction has 1333 states and 1605 transitions. [2020-07-21 13:54:28,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:54:28,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1605 transitions. [2020-07-21 13:54:28,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-07-21 13:54:28,585 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:28,585 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:54:28,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:28,788 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:28,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:28,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1661435255, now seen corresponding path program 1 times [2020-07-21 13:54:28,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:28,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137856880] [2020-07-21 13:54:28,791 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:28,908 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:28,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:28,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:54:28,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:28,935 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 13:54:28,935 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:54:29,028 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:29,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:54:29,108 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:54:29,109 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:54:29,110 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 13:54:29,110 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:54:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:29,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137856880] [2020-07-21 13:54:29,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:54:29,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:54:29,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792827037] [2020-07-21 13:54:29,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:54:29,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:29,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:54:29,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:54:29,280 INFO L87 Difference]: Start difference. First operand 1333 states and 1605 transitions. Second operand 6 states. [2020-07-21 13:54:30,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:30,415 INFO L93 Difference]: Finished difference Result 2843 states and 3572 transitions. [2020-07-21 13:54:30,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:54:30,416 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 242 [2020-07-21 13:54:30,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:30,428 INFO L225 Difference]: With dead ends: 2843 [2020-07-21 13:54:30,428 INFO L226 Difference]: Without dead ends: 1659 [2020-07-21 13:54:30,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 480 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:54:30,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2020-07-21 13:54:30,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1633. [2020-07-21 13:54:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1633 states. [2020-07-21 13:54:30,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 1973 transitions. [2020-07-21 13:54:30,499 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 1973 transitions. Word has length 242 [2020-07-21 13:54:30,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:30,500 INFO L479 AbstractCegarLoop]: Abstraction has 1633 states and 1973 transitions. [2020-07-21 13:54:30,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:54:30,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 1973 transitions. [2020-07-21 13:54:30,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-07-21 13:54:30,507 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:30,507 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 13:54:30,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:30,721 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:30,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:30,722 INFO L82 PathProgramCache]: Analyzing trace with hash -14922590, now seen corresponding path program 1 times [2020-07-21 13:54:30,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:30,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689427019] [2020-07-21 13:54:30,723 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:30,860 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:30,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:30,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:54:30,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:30,978 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 173 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:30,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:54:31,124 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 173 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:31,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689427019] [2020-07-21 13:54:31,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:54:31,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:54:31,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358517466] [2020-07-21 13:54:31,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:54:31,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:31,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:54:31,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:54:31,128 INFO L87 Difference]: Start difference. First operand 1633 states and 1973 transitions. Second operand 6 states. [2020-07-21 13:54:32,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:54:32,290 INFO L93 Difference]: Finished difference Result 3874 states and 4792 transitions. [2020-07-21 13:54:32,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:54:32,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2020-07-21 13:54:32,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:54:32,303 INFO L225 Difference]: With dead ends: 3874 [2020-07-21 13:54:32,303 INFO L226 Difference]: Without dead ends: 1655 [2020-07-21 13:54:32,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 498 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:54:32,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2020-07-21 13:54:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1629. [2020-07-21 13:54:32,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-07-21 13:54:32,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 1905 transitions. [2020-07-21 13:54:32,358 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 1905 transitions. Word has length 251 [2020-07-21 13:54:32,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:54:32,359 INFO L479 AbstractCegarLoop]: Abstraction has 1629 states and 1905 transitions. [2020-07-21 13:54:32,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:54:32,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 1905 transitions. [2020-07-21 13:54:32,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-07-21 13:54:32,366 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:32,367 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:54:32,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:32,581 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:32,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:32,582 INFO L82 PathProgramCache]: Analyzing trace with hash 253048858, now seen corresponding path program 1 times [2020-07-21 13:54:32,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:32,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294735454] [2020-07-21 13:54:32,583 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:32,716 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:32,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:32,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 13:54:32,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:32,750 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:54:32,752 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 13:54:32,754 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 13:54:32,755 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 13:54:32,761 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 13:54:32,767 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 13:54:32,771 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 13:54:32,772 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:54:47,913 WARN L193 SmtUtils]: Spent 15.10 s on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2020-07-21 13:54:47,954 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 13:54:48,062 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 13:54:48,063 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:54:48,063 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:54:48,093 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:54:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 209 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:54:48,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:54:48,343 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 13:54:48,344 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:54:48,345 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:54:48,346 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 13:54:48,376 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:54:48,377 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 13:54:48,571 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:54:48,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:54:48,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 13:54:48,574 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:54:48,576 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 13:54:48,576 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 13:54:48,577 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 13:54:48,578 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 13:54:48,580 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 13:54:48,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294735454] [2020-07-21 13:54:48,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 13:54:48,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 13:54:48,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912872148] [2020-07-21 13:54:48,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 13:54:48,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:48,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 13:54:48,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 13:54:48,682 INFO L87 Difference]: Start difference. First operand 1629 states and 1905 transitions. Second operand 8 states. [2020-07-21 13:54:51,586 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 48 DAG size of output: 33 [2020-07-21 13:54:56,850 WARN L193 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 39 DAG size of output: 25 [2020-07-21 13:55:31,969 WARN L193 SmtUtils]: Spent 33.59 s on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-07-21 13:55:33,032 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 27 [2020-07-21 13:55:33,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:33,414 INFO L93 Difference]: Finished difference Result 4307 states and 5182 transitions. [2020-07-21 13:55:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 13:55:33,417 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 287 [2020-07-21 13:55:33,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:33,432 INFO L225 Difference]: With dead ends: 4307 [2020-07-21 13:55:33,433 INFO L226 Difference]: Without dead ends: 2827 [2020-07-21 13:55:33,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 443 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 56.2s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2020-07-21 13:55:33,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2020-07-21 13:55:33,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2660. [2020-07-21 13:55:33,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2660 states. [2020-07-21 13:55:33,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2660 states to 2660 states and 3206 transitions. [2020-07-21 13:55:33,536 INFO L78 Accepts]: Start accepts. Automaton has 2660 states and 3206 transitions. Word has length 287 [2020-07-21 13:55:33,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:33,537 INFO L479 AbstractCegarLoop]: Abstraction has 2660 states and 3206 transitions. [2020-07-21 13:55:33,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 13:55:33,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2660 states and 3206 transitions. [2020-07-21 13:55:33,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-07-21 13:55:33,547 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:33,548 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-07-21 13:55:33,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:33,763 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:33,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:33,764 INFO L82 PathProgramCache]: Analyzing trace with hash 273888777, now seen corresponding path program 1 times [2020-07-21 13:55:33,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:33,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277972687] [2020-07-21 13:55:33,765 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:33,913 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:33,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:33,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 13:55:33,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:33,989 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:55:33,990 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 13:55:33,991 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:55:33,992 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:33,994 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:33,995 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:33,997 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,000 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-07-21 13:55:34,002 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,002 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,003 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,004 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,005 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,006 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,006 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,007 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,012 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,013 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,014 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,016 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,017 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,018 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-07-21 13:55:34,019 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,020 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-07-21 13:55:34,021 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,022 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,023 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,024 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 13:55:34,025 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:55:34,026 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:55:34,026 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,027 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,027 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,029 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,029 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,031 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,031 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,033 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:55:34,033 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,034 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,036 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,037 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,037 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,038 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,039 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,042 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 13:55:34,042 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,045 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,046 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,047 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,048 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,049 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,050 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,052 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,054 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,055 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,057 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-21 13:55:34,059 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:55:34,060 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:55:34,060 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:55:34,061 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,062 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,063 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,064 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,067 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:55:34,067 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,068 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,069 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,070 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,072 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:55:34,073 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:55:34,073 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,074 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,075 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,076 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:55:34,077 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 13:55:34,077 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,078 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,079 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 13:55:34,080 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-21 13:56:21,212 WARN L193 SmtUtils]: Spent 40.41 s on a formula simplification. DAG size of input: 242 DAG size of output: 54 [2020-07-21 13:56:31,957 WARN L193 SmtUtils]: Spent 8.13 s on a formula simplification that was a NOOP. DAG size: 109 [2020-07-21 13:56:31,961 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-07-21 13:56:42,388 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 28 [2020-07-21 13:56:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 6 proven. 95 refuted. 1 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 13:56:42,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:56:43,333 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 13:56:43,347 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,349 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,350 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,350 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,351 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,352 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,353 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,354 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,354 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,355 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,356 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,358 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,359 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,360 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,361 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,363 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,364 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 13:56:43,365 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,366 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,367 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,368 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,369 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,370 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,372 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,373 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,374 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-07-21 13:56:43,376 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,377 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,378 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-07-21 13:56:43,380 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,381 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,382 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,383 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,384 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,387 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,387 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-07-21 13:56:43,388 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 9 conjuncts [2020-07-21 13:56:43,393 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,394 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,395 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-07-21 13:56:43,399 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,400 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-07-21 13:56:43,403 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 13:56:43,403 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,404 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,405 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,406 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-07-21 13:56:43,408 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,409 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-07-21 13:56:43,411 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,411 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,412 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,413 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,415 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,416 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-07-21 13:56:43,418 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,418 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,419 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,421 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,422 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-07-21 13:56:43,424 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 13:56:43,425 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 13:56:43,426 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,427 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,428 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,430 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,430 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,432 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,433 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,434 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,435 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,437 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,438 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,440 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,441 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,442 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,443 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,444 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,446 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 13:56:43,447 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,448 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,448 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,449 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,450 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,451 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,454 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,455 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,456 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,458 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 13:56:43,459 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,461 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,462 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,463 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,465 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 13:56:43,466 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 13:56:43,995 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,996 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,997 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,998 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,998 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,999 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:43,999 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-07-21 13:56:44,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277972687] [2020-07-21 13:56:44,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 13:56:44,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2020-07-21 13:56:44,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691609797] [2020-07-21 13:56:44,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:56:44,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:56:44,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:56:44,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=52, Unknown=9, NotChecked=0, Total=90 [2020-07-21 13:56:44,239 INFO L87 Difference]: Start difference. First operand 2660 states and 3206 transitions. Second operand 3 states. [2020-07-21 13:56:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:56:47,629 INFO L93 Difference]: Finished difference Result 5314 states and 6404 transitions. [2020-07-21 13:56:47,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:56:47,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 306 [2020-07-21 13:56:47,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:56:47,647 INFO L225 Difference]: With dead ends: 5314 [2020-07-21 13:56:47,648 INFO L226 Difference]: Without dead ends: 2658 [2020-07-21 13:56:47,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 601 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 68.8s TimeCoverageRelationStatistics Valid=29, Invalid=52, Unknown=9, NotChecked=0, Total=90 [2020-07-21 13:56:47,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2020-07-21 13:56:47,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2658. [2020-07-21 13:56:47,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2658 states. [2020-07-21 13:56:47,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2658 states to 2658 states and 3165 transitions. [2020-07-21 13:56:47,720 INFO L78 Accepts]: Start accepts. Automaton has 2658 states and 3165 transitions. Word has length 306 [2020-07-21 13:56:47,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:56:47,721 INFO L479 AbstractCegarLoop]: Abstraction has 2658 states and 3165 transitions. [2020-07-21 13:56:47,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:56:47,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2658 states and 3165 transitions. [2020-07-21 13:56:47,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2020-07-21 13:56:47,734 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:56:47,734 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:56:47,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:47,950 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:56:47,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:56:47,951 INFO L82 PathProgramCache]: Analyzing trace with hash 466916981, now seen corresponding path program 1 times [2020-07-21 13:56:47,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:56:47,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202108344] [2020-07-21 13:56:47,952 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:48,129 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:56:48,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:56:48,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:56:48,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:56:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2020-07-21 13:56:48,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:56:48,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202108344] [2020-07-21 13:56:48,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:56:48,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:56:48,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911738166] [2020-07-21 13:56:48,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:56:48,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:56:48,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:56:48,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:48,255 INFO L87 Difference]: Start difference. First operand 2658 states and 3165 transitions. Second operand 3 states. [2020-07-21 13:56:51,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:56:51,049 INFO L93 Difference]: Finished difference Result 2658 states and 3165 transitions. [2020-07-21 13:56:51,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:56:51,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 420 [2020-07-21 13:56:51,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:56:51,059 INFO L225 Difference]: With dead ends: 2658 [2020-07-21 13:56:51,059 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:56:51,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:51,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:56:51,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:56:51,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:56:51,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:56:51,066 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 420 [2020-07-21 13:56:51,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:56:51,067 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:56:51,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:56:51,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:56:51,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:56:51,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:51,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:56:51,852 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 137 [2020-07-21 13:56:51,959 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 137 [2020-07-21 13:56:52,297 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2020-07-21 13:56:53,957 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 142 DAG size of output: 30 [2020-07-21 13:56:55,497 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 137 DAG size of output: 25 [2020-07-21 13:56:57,062 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 137 DAG size of output: 25 [2020-07-21 13:56:57,068 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:56:57,069 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-21 13:56:57,069 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:56:57,069 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 13:56:57,069 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,069 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,069 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,069 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,069 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,069 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,070 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 13:56:57,070 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 13:56:57,070 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 13:56:57,070 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 13:56:57,070 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 13:56:57,070 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 13:56:57,070 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 13:56:57,070 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 13:56:57,070 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 13:56:57,070 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 13:56:57,070 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 13:56:57,071 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,071 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,071 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,071 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,071 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,071 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 13:56:57,071 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 13:56:57,071 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 13:56:57,071 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 13:56:57,072 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 13:56:57,072 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 13:56:57,072 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 13:56:57,072 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 13:56:57,072 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 13:56:57,072 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 13:56:57,072 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 13:56:57,072 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 13:56:57,073 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 13:56:57,073 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-07-21 13:56:57,073 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 13:56:57,073 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,073 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,073 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,073 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,073 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,073 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 13:56:57,073 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 13:56:57,074 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 13:56:57,074 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 13:56:57,074 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 13:56:57,074 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 13:56:57,074 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 13:56:57,074 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 13:56:57,074 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 13:56:57,074 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 13:56:57,075 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,075 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,075 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,075 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,075 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,075 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 13:56:57,075 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 13:56:57,075 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 13:56:57,076 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 13:56:57,076 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 13:56:57,076 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 13:56:57,076 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 13:56:57,076 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 13:56:57,076 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 13:56:57,076 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 13:56:57,076 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 13:56:57,077 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 13:56:57,077 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 13:56:57,077 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,077 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,077 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,077 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,077 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,077 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 13:56:57,078 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 13:56:57,078 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 13:56:57,078 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 13:56:57,078 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 13:56:57,078 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 13:56:57,078 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 13:56:57,078 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 13:56:57,078 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 13:56:57,079 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,079 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,079 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,079 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,079 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,079 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,079 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,079 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 13:56:57,080 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 13:56:57,080 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 13:56:57,080 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 13:56:57,080 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 13:56:57,080 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 13:56:57,080 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 13:56:57,080 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 13:56:57,080 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 13:56:57,080 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 13:56:57,080 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 13:56:57,081 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,082 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 13:56:57,083 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (<= ~a10~0 |old(~a10~0)|)) (.cse2 (<= |old(~a10~0)| ~a10~0)) (.cse3 (<= ~a19~0 |old(~a19~0)|)) (.cse4 (= ~a1~0 |old(~a1~0)|))) (let ((.cse0 (and .cse1 .cse2 .cse3 .cse4))) (and (or (not (<= |old(~a19~0)| 6)) .cse0) (or (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) .cse1 .cse2 .cse3 .cse4)) (or (not (< 38 |old(~a1~0)|)) .cse0) (or .cse0 (not (<= 1 |old(~a10~0)|)))))) [2020-07-21 13:56:57,084 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 13:56:57,084 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 13:56:57,084 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 13:56:57,084 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,084 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,084 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,084 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,084 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,084 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,085 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 13:56:57,085 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 13:56:57,085 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 13:56:57,085 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 13:56:57,085 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 13:56:57,085 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 13:56:57,085 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 13:56:57,085 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 13:56:57,086 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 13:56:57,086 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 13:56:57,086 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 13:56:57,086 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 13:56:57,086 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 13:56:57,086 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,086 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,086 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,086 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,086 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,087 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 13:56:57,088 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 13:56:57,089 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 13:56:57,089 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 13:56:57,089 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:56:57,089 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 23 ~a1~0)) [2020-07-21 13:56:57,089 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:56:57,089 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:56:57,089 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 13:56:57,089 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 13:56:57,089 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (<= 9 ~a19~0) (< 38 ~a1~0) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (<= 1 ~a10~0) (not (<= |old(~a19~0)| 9))) [2020-07-21 13:56:57,089 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 13:56:57,089 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 13:56:57,089 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (<= 9 ~a19~0) (< 38 ~a1~0) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (<= 1 ~a10~0) (not (<= |old(~a19~0)| 9))) [2020-07-21 13:56:57,090 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 13:56:57,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:56:57 BoogieIcfgContainer [2020-07-21 13:56:57,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:56:57,114 INFO L168 Benchmark]: Toolchain (without parser) took 160092.99 ms. Allocated memory was 146.3 MB in the beginning and 503.8 MB in the end (delta: 357.6 MB). Free memory was 102.2 MB in the beginning and 316.5 MB in the end (delta: -214.3 MB). Peak memory consumption was 355.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:56:57,115 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 13:56:57,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.40 ms. Allocated memory was 146.3 MB in the beginning and 206.6 MB in the end (delta: 60.3 MB). Free memory was 101.8 MB in the beginning and 172.7 MB in the end (delta: -71.0 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2020-07-21 13:56:57,117 INFO L168 Benchmark]: Boogie Preprocessor took 130.81 ms. Allocated memory is still 206.6 MB. Free memory was 172.7 MB in the beginning and 167.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:56:57,118 INFO L168 Benchmark]: RCFGBuilder took 1582.74 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 167.9 MB in the beginning and 181.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-07-21 13:56:57,123 INFO L168 Benchmark]: TraceAbstraction took 157520.89 ms. Allocated memory was 238.0 MB in the beginning and 503.8 MB in the end (delta: 265.8 MB). Free memory was 179.9 MB in the beginning and 316.5 MB in the end (delta: -136.6 MB). Peak memory consumption was 340.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:56:57,127 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 850.40 ms. Allocated memory was 146.3 MB in the beginning and 206.6 MB in the end (delta: 60.3 MB). Free memory was 101.8 MB in the beginning and 172.7 MB in the end (delta: -71.0 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.81 ms. Allocated memory is still 206.6 MB. Free memory was 172.7 MB in the beginning and 167.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1582.74 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 167.9 MB in the beginning and 181.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 157520.89 ms. Allocated memory was 238.0 MB in the beginning and 503.8 MB in the end (delta: 265.8 MB). Free memory was 179.9 MB in the beginning and 316.5 MB in the end (delta: -136.6 MB). Peak memory consumption was 340.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 151]: 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: 582]: Loop Invariant Derived loop invariant: ((((((9 <= a19 || 38 < a1) || a19 <= 6) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || 1 <= a10) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 151.6s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 59.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1052 SDtfs, 2328 SDslu, 300 SDs, 0 SdLazy, 7081 SolverSat, 1233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3387 GetRequests, 3315 SyntacticMatches, 8 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 125.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2660occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 545 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 96 PreInvPairs, 144 NumberOfFragments, 194 HoareAnnotationTreeSize, 96 FomulaSimplifications, 4910 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6768 FormulaSimplificationTreeSizeReductionInter, 5.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 87.7s InterpolantComputationTime, 2399 NumberOfCodeBlocks, 2399 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3184 ConstructedInterpolants, 108 QuantifiedInterpolants, 3234236 SizeOfPredicates, 17 NumberOfNonLiveVariables, 4137 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 2045/2151 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...