/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:11:16,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:11:16,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:11:16,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:11:16,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:11:16,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:11:16,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:11:16,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:11:16,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:11:16,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:11:16,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:11:16,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:11:16,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:11:16,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:11:16,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:11:16,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:11:16,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:11:16,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:11:16,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:11:16,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:11:16,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:11:16,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:11:16,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:11:16,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:11:16,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:11:16,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:11:16,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:11:16,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:11:16,819 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 20:11:16,851 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:11:16,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:11:16,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:11:16,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:11:16,855 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:11:16,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:11:16,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:11:16,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:11:16,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:11:16,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:11:16,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:11:16,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:11:16,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:11:16,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:11:16,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:11:16,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:11:16,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:11:16,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:11:16,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:11:16,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:11:16,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:11:16,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:11:16,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:11:16,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:11:16,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:11:16,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:11:16,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:16,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:11:16,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:11:16,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:11:17,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:11:17,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:11:17,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:11:17,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:11:17,158 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:11:17,158 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-21 20:11:17,230 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/474dcc25b/330409d757a5486bb77b558335a80468/FLAG41798e3be [2020-07-21 20:11:17,884 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:11:17,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-21 20:11:17,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/474dcc25b/330409d757a5486bb77b558335a80468/FLAG41798e3be [2020-07-21 20:11:18,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/474dcc25b/330409d757a5486bb77b558335a80468 [2020-07-21 20:11:18,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:11:18,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:11:18,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:11:18,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:11:18,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:11:18,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:11:18" (1/1) ... [2020-07-21 20:11:18,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f0e332a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:18, skipping insertion in model container [2020-07-21 20:11:18,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:11:18" (1/1) ... [2020-07-21 20:11:18,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:11:18,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:11:18,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:11:18,641 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:11:18,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:11:18,920 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:11:18,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:18 WrapperNode [2020-07-21 20:11:18,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:11:18,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:11:18,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:11:18,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:11:18,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:18" (1/1) ... [2020-07-21 20:11:18,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:18" (1/1) ... [2020-07-21 20:11:18,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:18" (1/1) ... [2020-07-21 20:11:18,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:18" (1/1) ... [2020-07-21 20:11:18,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:18" (1/1) ... [2020-07-21 20:11:19,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:18" (1/1) ... [2020-07-21 20:11:19,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:18" (1/1) ... [2020-07-21 20:11:19,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:11:19,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:11:19,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:11:19,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:11:19,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:18" (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 20:11:19,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:11:19,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:11:19,124 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:11:19,124 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:11:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:11:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:11:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:11:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:11:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:11:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:11:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:11:20,627 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:11:20,627 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:11:20,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:11:20 BoogieIcfgContainer [2020-07-21 20:11:20,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:11:20,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:11:20,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:11:20,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:11:20,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:11:18" (1/3) ... [2020-07-21 20:11:20,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bae204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:11:20, skipping insertion in model container [2020-07-21 20:11:20,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:18" (2/3) ... [2020-07-21 20:11:20,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bae204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:11:20, skipping insertion in model container [2020-07-21 20:11:20,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:11:20" (3/3) ... [2020-07-21 20:11:20,645 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label11.c [2020-07-21 20:11:20,656 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:11:20,665 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:11:20,680 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:11:20,707 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:11:20,708 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:11:20,708 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:11:20,708 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:11:20,709 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:11:20,709 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:11:20,709 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:11:20,709 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:11:20,734 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 20:11:20,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 20:11:20,744 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:20,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:20,746 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:20,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:20,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1918215546, now seen corresponding path program 1 times [2020-07-21 20:11:20,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:20,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215939062] [2020-07-21 20:11:20,763 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 20:11:20,890 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:20,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:20,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:11:20,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:20,974 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 20:11:20,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:20,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215939062] [2020-07-21 20:11:20,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:20,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:20,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801748139] [2020-07-21 20:11:20,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:20,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:20,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:20,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:21,000 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 20:11:22,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:22,129 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 20:11:22,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:22,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-21 20:11:22,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:22,148 INFO L225 Difference]: With dead ends: 586 [2020-07-21 20:11:22,149 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 20:11:22,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 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 20:11:22,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 20:11:22,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 20:11:22,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 20:11:22,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-21 20:11:22,283 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 67 [2020-07-21 20:11:22,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:22,284 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-21 20:11:22,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:22,285 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-21 20:11:22,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 20:11:22,301 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:22,301 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, 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] [2020-07-21 20:11:22,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:22,503 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:22,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:22,504 INFO L82 PathProgramCache]: Analyzing trace with hash -649832990, now seen corresponding path program 1 times [2020-07-21 20:11:22,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:22,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176170092] [2020-07-21 20:11:22,505 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 20:11:22,594 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:22,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:22,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:22,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:22,658 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:22,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:22,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176170092] [2020-07-21 20:11:22,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:22,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:22,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102619740] [2020-07-21 20:11:22,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:22,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:22,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:22,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:22,664 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-21 20:11:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:23,472 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-21 20:11:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:23,473 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-21 20:11:23,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:23,479 INFO L225 Difference]: With dead ends: 868 [2020-07-21 20:11:23,480 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 20:11:23,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 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 20:11:23,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 20:11:23,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 437. [2020-07-21 20:11:23,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 20:11:23,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-21 20:11:23,525 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 137 [2020-07-21 20:11:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:23,526 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-21 20:11:23,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-21 20:11:23,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-21 20:11:23,528 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:23,529 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, 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] [2020-07-21 20:11:23,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:23,745 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:23,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:23,746 INFO L82 PathProgramCache]: Analyzing trace with hash 387828613, now seen corresponding path program 1 times [2020-07-21 20:11:23,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:23,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256154521] [2020-07-21 20:11:23,748 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 20:11:23,873 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:23,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:23,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:23,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:23,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:23,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256154521] [2020-07-21 20:11:23,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:23,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:23,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302313047] [2020-07-21 20:11:23,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:23,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:23,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:23,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:24,002 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-21 20:11:24,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:24,707 INFO L93 Difference]: Finished difference Result 868 states and 1308 transitions. [2020-07-21 20:11:24,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:24,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-07-21 20:11:24,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:24,715 INFO L225 Difference]: With dead ends: 868 [2020-07-21 20:11:24,716 INFO L226 Difference]: Without dead ends: 866 [2020-07-21 20:11:24,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 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 20:11:24,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-21 20:11:24,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 437. [2020-07-21 20:11:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 20:11:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-21 20:11:24,745 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 144 [2020-07-21 20:11:24,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:24,746 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-21 20:11:24,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:24,747 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-21 20:11:24,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-21 20:11:24,750 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:24,750 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, 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] [2020-07-21 20:11:24,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:24,964 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:24,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:24,965 INFO L82 PathProgramCache]: Analyzing trace with hash -319573275, now seen corresponding path program 1 times [2020-07-21 20:11:24,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:24,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492151178] [2020-07-21 20:11:24,966 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 20:11:25,099 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:25,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:25,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:25,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:25,201 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:25,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:25,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492151178] [2020-07-21 20:11:25,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:25,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:25,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565185103] [2020-07-21 20:11:25,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:25,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:25,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:25,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:25,204 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-21 20:11:25,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:25,961 INFO L93 Difference]: Finished difference Result 1154 states and 1745 transitions. [2020-07-21 20:11:25,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:25,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-07-21 20:11:25,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:25,969 INFO L225 Difference]: With dead ends: 1154 [2020-07-21 20:11:25,969 INFO L226 Difference]: Without dead ends: 723 [2020-07-21 20:11:25,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 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 20:11:25,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-07-21 20:11:25,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 580. [2020-07-21 20:11:25,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 20:11:25,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 811 transitions. [2020-07-21 20:11:25,997 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 811 transitions. Word has length 192 [2020-07-21 20:11:25,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:25,997 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 811 transitions. [2020-07-21 20:11:25,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:25,998 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 811 transitions. [2020-07-21 20:11:26,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-21 20:11:26,002 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:26,002 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:26,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:26,215 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:26,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:26,216 INFO L82 PathProgramCache]: Analyzing trace with hash 562765338, now seen corresponding path program 1 times [2020-07-21 20:11:26,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:26,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241889251] [2020-07-21 20:11:26,217 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 20:11:26,383 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:26,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:26,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:11:26,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:26,457 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 20:11:26,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:26,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241889251] [2020-07-21 20:11:26,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:26,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:11:26,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160566174] [2020-07-21 20:11:26,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:11:26,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:26,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:11:26,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:11:26,460 INFO L87 Difference]: Start difference. First operand 580 states and 811 transitions. Second operand 5 states. [2020-07-21 20:11:27,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:27,550 INFO L93 Difference]: Finished difference Result 1315 states and 1852 transitions. [2020-07-21 20:11:27,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:11:27,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 263 [2020-07-21 20:11:27,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:27,557 INFO L225 Difference]: With dead ends: 1315 [2020-07-21 20:11:27,557 INFO L226 Difference]: Without dead ends: 741 [2020-07-21 20:11:27,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 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 20:11:27,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2020-07-21 20:11:27,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 739. [2020-07-21 20:11:27,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-07-21 20:11:27,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1009 transitions. [2020-07-21 20:11:27,586 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1009 transitions. Word has length 263 [2020-07-21 20:11:27,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:27,586 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 1009 transitions. [2020-07-21 20:11:27,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:11:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1009 transitions. [2020-07-21 20:11:27,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-07-21 20:11:27,591 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:27,592 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:27,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:27,796 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:27,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:27,796 INFO L82 PathProgramCache]: Analyzing trace with hash -550746410, now seen corresponding path program 1 times [2020-07-21 20:11:27,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:27,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336013078] [2020-07-21 20:11:27,798 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 20:11:27,927 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:27,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:27,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:11:27,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:28,020 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 20:11:28,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:28,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336013078] [2020-07-21 20:11:28,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:28,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:11:28,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628538447] [2020-07-21 20:11:28,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:11:28,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:28,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:11:28,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:11:28,022 INFO L87 Difference]: Start difference. First operand 739 states and 1009 transitions. Second operand 5 states. [2020-07-21 20:11:29,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:29,003 INFO L93 Difference]: Finished difference Result 1649 states and 2326 transitions. [2020-07-21 20:11:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:11:29,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-07-21 20:11:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:29,013 INFO L225 Difference]: With dead ends: 1649 [2020-07-21 20:11:29,014 INFO L226 Difference]: Without dead ends: 916 [2020-07-21 20:11:29,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 277 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 20:11:29,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2020-07-21 20:11:29,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 890. [2020-07-21 20:11:29,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2020-07-21 20:11:29,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1140 transitions. [2020-07-21 20:11:29,080 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1140 transitions. Word has length 281 [2020-07-21 20:11:29,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:29,080 INFO L479 AbstractCegarLoop]: Abstraction has 890 states and 1140 transitions. [2020-07-21 20:11:29,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:11:29,081 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1140 transitions. [2020-07-21 20:11:29,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-07-21 20:11:29,088 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:29,090 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:29,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:29,306 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:29,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:29,306 INFO L82 PathProgramCache]: Analyzing trace with hash -182681854, now seen corresponding path program 1 times [2020-07-21 20:11:29,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:29,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752764043] [2020-07-21 20:11:29,307 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 20:11:29,449 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:29,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:29,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:11:29,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:29,591 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 20:11:29,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:29,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752764043] [2020-07-21 20:11:29,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:29,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:11:29,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615931633] [2020-07-21 20:11:29,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:11:29,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:29,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:11:29,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:11:29,594 INFO L87 Difference]: Start difference. First operand 890 states and 1140 transitions. Second operand 5 states. [2020-07-21 20:11:30,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:30,626 INFO L93 Difference]: Finished difference Result 1951 states and 2583 transitions. [2020-07-21 20:11:30,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:11:30,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 307 [2020-07-21 20:11:30,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:30,638 INFO L225 Difference]: With dead ends: 1951 [2020-07-21 20:11:30,638 INFO L226 Difference]: Without dead ends: 1210 [2020-07-21 20:11:30,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 303 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 20:11:30,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2020-07-21 20:11:30,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1194. [2020-07-21 20:11:30,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-07-21 20:11:30,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1488 transitions. [2020-07-21 20:11:30,677 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1488 transitions. Word has length 307 [2020-07-21 20:11:30,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:30,677 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1488 transitions. [2020-07-21 20:11:30,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:11:30,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1488 transitions. [2020-07-21 20:11:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-21 20:11:30,685 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:30,685 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 20:11:30,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:30,901 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:30,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:30,901 INFO L82 PathProgramCache]: Analyzing trace with hash 745892726, now seen corresponding path program 1 times [2020-07-21 20:11:30,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:30,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471493121] [2020-07-21 20:11:30,902 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 20:11:31,082 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:31,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:31,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:31,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:31,120 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 20:11:31,121 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 20:11:31,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:11:31,307 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:31,308 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:31,311 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 20:11:31,312 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 252 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 20:11:31,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471493121] [2020-07-21 20:11:31,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:11:31,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:11:31,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566038651] [2020-07-21 20:11:31,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:11:31,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:31,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:11:31,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:11:31,489 INFO L87 Difference]: Start difference. First operand 1194 states and 1488 transitions. Second operand 6 states. [2020-07-21 20:11:32,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:32,611 INFO L93 Difference]: Finished difference Result 2418 states and 3118 transitions. [2020-07-21 20:11:32,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:11:32,612 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 333 [2020-07-21 20:11:32,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:32,619 INFO L225 Difference]: With dead ends: 2418 [2020-07-21 20:11:32,619 INFO L226 Difference]: Without dead ends: 1373 [2020-07-21 20:11:32,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 662 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 20:11:32,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-07-21 20:11:32,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1351. [2020-07-21 20:11:32,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1351 states. [2020-07-21 20:11:32,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1608 transitions. [2020-07-21 20:11:32,673 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1608 transitions. Word has length 333 [2020-07-21 20:11:32,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:32,673 INFO L479 AbstractCegarLoop]: Abstraction has 1351 states and 1608 transitions. [2020-07-21 20:11:32,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:11:32,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1608 transitions. [2020-07-21 20:11:32,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-21 20:11:32,678 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:32,679 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, 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, 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] [2020-07-21 20:11:32,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:32,892 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:32,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:32,892 INFO L82 PathProgramCache]: Analyzing trace with hash 2013092669, now seen corresponding path program 1 times [2020-07-21 20:11:32,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:32,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187811078] [2020-07-21 20:11:32,893 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 20:11:33,064 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:33,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:33,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:33,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 20:11:33,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:11:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 259 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 20:11:33,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187811078] [2020-07-21 20:11:33,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:11:33,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:11:33,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033994561] [2020-07-21 20:11:33,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:11:33,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:33,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:11:33,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:11:33,411 INFO L87 Difference]: Start difference. First operand 1351 states and 1608 transitions. Second operand 7 states. [2020-07-21 20:11:35,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:35,113 INFO L93 Difference]: Finished difference Result 3860 states and 4614 transitions. [2020-07-21 20:11:35,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:11:35,115 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 342 [2020-07-21 20:11:35,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:35,126 INFO L225 Difference]: With dead ends: 3860 [2020-07-21 20:11:35,126 INFO L226 Difference]: Without dead ends: 2060 [2020-07-21 20:11:35,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 679 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:11:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2020-07-21 20:11:35,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1341. [2020-07-21 20:11:35,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2020-07-21 20:11:35,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1523 transitions. [2020-07-21 20:11:35,176 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1523 transitions. Word has length 342 [2020-07-21 20:11:35,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:35,176 INFO L479 AbstractCegarLoop]: Abstraction has 1341 states and 1523 transitions. [2020-07-21 20:11:35,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:11:35,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1523 transitions. [2020-07-21 20:11:35,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-07-21 20:11:35,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:35,184 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, 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, 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] [2020-07-21 20:11:35,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:35,397 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:35,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:35,397 INFO L82 PathProgramCache]: Analyzing trace with hash 348873925, now seen corresponding path program 1 times [2020-07-21 20:11:35,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:35,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714185489] [2020-07-21 20:11:35,398 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 20:11:35,604 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:35,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:35,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 20:11:35,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:35,640 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:35,645 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:11:35,649 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:11:35,651 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:35,655 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:35,659 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:35,661 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:35,665 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:35,673 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:11:35,674 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:35,680 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:35,683 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:11:35,684 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:35,694 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:11:35,695 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:11:35,700 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:35,702 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:35,703 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:11:35,706 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:11:35,707 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:35,708 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:11:35,709 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:35,711 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:35,713 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:35,715 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:11:35,716 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:11:50,950 WARN L193 SmtUtils]: Spent 15.16 s on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-07-21 20:11:50,992 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 20:11:51,156 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 20:11:51,157 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:51,158 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:51,188 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:11:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 386 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 20:11:51,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:11:51,490 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:51,491 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:51,492 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:51,492 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:51,517 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:51,518 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:51,643 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:51,645 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:11:51,646 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:51,646 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:51,647 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:11:51,649 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:51,650 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:51,651 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:11:51,652 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:51,653 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:51,654 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:51,655 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:51,656 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:11:51,656 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:11:51,657 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:51,658 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:11:51,660 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:11:51,660 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:51,662 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:11:51,663 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 20:11:51,664 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:11:51,665 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 20:11:51,666 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:51,667 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:51,668 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:11:51,669 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:11:51,670 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:11:51,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714185489] [2020-07-21 20:11:51,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 20:11:51,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 20:11:51,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670628686] [2020-07-21 20:11:51,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 20:11:51,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:51,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 20:11:51,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 20:11:51,841 INFO L87 Difference]: Start difference. First operand 1341 states and 1523 transitions. Second operand 8 states. [2020-07-21 20:11:56,840 WARN L193 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 48 DAG size of output: 33 [2020-07-21 20:15:03,955 WARN L193 SmtUtils]: Spent 31.93 s on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-07-21 20:15:24,798 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 27 [2020-07-21 20:15:36,221 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 25 [2020-07-21 20:16:03,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:16:03,029 INFO L93 Difference]: Finished difference Result 4011 states and 4784 transitions. [2020-07-21 20:16:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 20:16:03,034 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 378 [2020-07-21 20:16:03,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:16:03,045 INFO L225 Difference]: With dead ends: 4011 [2020-07-21 20:16:03,045 INFO L226 Difference]: Without dead ends: 2819 [2020-07-21 20:16:03,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 625 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 54.1s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2020-07-21 20:16:03,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2819 states. [2020-07-21 20:16:03,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2819 to 2662. [2020-07-21 20:16:03,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2662 states. [2020-07-21 20:16:03,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2662 states to 2662 states and 3093 transitions. [2020-07-21 20:16:03,131 INFO L78 Accepts]: Start accepts. Automaton has 2662 states and 3093 transitions. Word has length 378 [2020-07-21 20:16:03,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:16:03,131 INFO L479 AbstractCegarLoop]: Abstraction has 2662 states and 3093 transitions. [2020-07-21 20:16:03,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 20:16:03,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2662 states and 3093 transitions. [2020-07-21 20:16:03,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-07-21 20:16:03,138 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:16:03,141 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, 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, 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] [2020-07-21 20:16:03,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:16:03,355 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:16:03,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:16:03,356 INFO L82 PathProgramCache]: Analyzing trace with hash -301430794, now seen corresponding path program 1 times [2020-07-21 20:16:03,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:16:03,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033353392] [2020-07-21 20:16:03,357 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 20:16:03,546 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:16:03,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:16:03,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 20:16:03,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:16:03,659 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:16:03,659 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:16:03,660 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:16:03,661 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:16:03,662 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:16:03,662 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:16:03,663 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:16:03,664 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 20:16:30,185 WARN L193 SmtUtils]: Spent 26.45 s on a formula simplification. DAG size of input: 69 DAG size of output: 34 [2020-07-21 20:16:30,253 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:16:32,870 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 20:16:32,870 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:16:32,871 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:16:32,979 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:16:33,249 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 185 proven. 197 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 20:16:33,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:16:33,502 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-07-21 20:16:33,574 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:16:33,575 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:33,575 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:33,576 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:16:33,676 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:33,677 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:16:34,145 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,147 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,147 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,147 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,148 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,149 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,149 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,150 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,151 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,151 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:16:34,152 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:16:34,152 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 20:16:34,153 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 20:16:34,154 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 20:16:34,154 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:16:34,155 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 20:16:34,155 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 20:16:34,156 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 20:16:34,157 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:16:34,157 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:16:34,158 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:16:34,158 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:16:34,159 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:16:34,160 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:16:34,161 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:16:34,162 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 20:16:34,163 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:16:34,163 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 20:16:34,164 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:16:34,165 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 20:16:34,165 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 20:16:34,166 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 20:16:34,217 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,219 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,219 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,220 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,220 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,221 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,222 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,223 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:16:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 377 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 20:16:34,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033353392] [2020-07-21 20:16:34,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:16:34,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-21 20:16:34,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603033333] [2020-07-21 20:16:34,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 20:16:34,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:16:34,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 20:16:34,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2020-07-21 20:16:34,686 INFO L87 Difference]: Start difference. First operand 2662 states and 3093 transitions. Second operand 12 states. [2020-07-21 20:16:47,225 WARN L193 SmtUtils]: Spent 8.12 s on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2020-07-21 20:16:51,133 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 21 [2020-07-21 20:16:57,137 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2020-07-21 20:19:10,956 WARN L193 SmtUtils]: Spent 14.36 s on a formula simplification that was a NOOP. DAG size: 38 [2020-07-21 20:21:18,978 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2020-07-21 20:21:19,450 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2020-07-21 20:21:36,608 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-07-21 20:21:37,158 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-07-21 20:21:41,529 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2020-07-21 20:22:04,177 WARN L193 SmtUtils]: Spent 8.48 s on a formula simplification that was a NOOP. DAG size: 43 [2020-07-21 20:22:26,620 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2020-07-21 20:22:31,444 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-07-21 20:22:55,946 WARN L193 SmtUtils]: Spent 22.95 s on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-07-21 20:23:07,430 WARN L193 SmtUtils]: Spent 9.28 s on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2020-07-21 20:23:17,026 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2020-07-21 20:23:19,591 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2020-07-21 20:23:40,600 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2020-07-21 20:24:28,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:24:28,653 INFO L93 Difference]: Finished difference Result 6918 states and 8275 transitions. [2020-07-21 20:24:28,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-07-21 20:24:28,665 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 397 [2020-07-21 20:24:28,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:24:28,686 INFO L225 Difference]: With dead ends: 6918 [2020-07-21 20:24:28,686 INFO L226 Difference]: Without dead ends: 4405 [2020-07-21 20:24:28,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 859 GetRequests, 811 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 106.5s TimeCoverageRelationStatistics Valid=427, Invalid=1642, Unknown=1, NotChecked=0, Total=2070 [2020-07-21 20:24:28,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4405 states. [2020-07-21 20:24:28,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4405 to 4343. [2020-07-21 20:24:28,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4343 states. [2020-07-21 20:24:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 5078 transitions. [2020-07-21 20:24:28,815 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 5078 transitions. Word has length 397 [2020-07-21 20:24:28,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:24:28,816 INFO L479 AbstractCegarLoop]: Abstraction has 4343 states and 5078 transitions. [2020-07-21 20:24:28,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 20:24:28,816 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 5078 transitions. [2020-07-21 20:24:28,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-07-21 20:24:28,829 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:24:28,830 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, 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, 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] [2020-07-21 20:24:29,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:24:29,044 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:24:29,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:24:29,045 INFO L82 PathProgramCache]: Analyzing trace with hash 252720706, now seen corresponding path program 1 times [2020-07-21 20:24:29,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:24:29,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131853349] [2020-07-21 20:24:29,046 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:24:29,301 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:24:29,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:24:29,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:24:29,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:24:29,321 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:24:29,321 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 20:24:29,323 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:24:29,323 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:24:29,324 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:24:29,325 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:24:29,326 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:24:29,658 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 23 [2020-07-21 20:24:29,977 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-07-21 20:24:29,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:24:29,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131853349] [2020-07-21 20:24:29,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:24:29,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:24:29,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980102744] [2020-07-21 20:24:29,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:24:29,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:24:29,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:24:29,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:24:29,980 INFO L87 Difference]: Start difference. First operand 4343 states and 5078 transitions. Second operand 3 states. [2020-07-21 20:24:37,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:24:37,346 INFO L93 Difference]: Finished difference Result 5513 states and 6507 transitions. [2020-07-21 20:24:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:24:37,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 407 [2020-07-21 20:24:37,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:24:37,358 INFO L225 Difference]: With dead ends: 5513 [2020-07-21 20:24:37,358 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:24:37,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:24:37,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:24:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:24:37,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:24:37,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:24:37,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 407 [2020-07-21 20:24:37,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:24:37,371 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:24:37,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:24:37,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:24:37,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:24:37,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:24:37,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:24:38,690 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 252 [2020-07-21 20:24:38,903 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 252 [2020-07-21 20:24:39,097 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 11 [2020-07-21 20:24:39,585 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 24 [2020-07-21 20:24:56,499 WARN L193 SmtUtils]: Spent 16.89 s on a formula simplification. DAG size of input: 265 DAG size of output: 67 [2020-07-21 20:24:56,662 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2020-07-21 20:25:15,702 WARN L193 SmtUtils]: Spent 19.03 s on a formula simplification. DAG size of input: 271 DAG size of output: 50 [2020-07-21 20:25:36,932 WARN L193 SmtUtils]: Spent 21.23 s on a formula simplification. DAG size of input: 271 DAG size of output: 50 [2020-07-21 20:25:36,938 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:25:36,938 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 20:25:36,938 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:25:36,939 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 20:25:36,939 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,939 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,939 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,939 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,939 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,939 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,939 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 20:25:36,939 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 20:25:36,939 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 20:25:36,939 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 20:25:36,940 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 20:25:36,940 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 20:25:36,940 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 20:25:36,940 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 20:25:36,940 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 20:25:36,940 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 20:25:36,940 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 20:25:36,940 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,940 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,940 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,941 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,941 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,941 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 20:25:36,941 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 20:25:36,941 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 20:25:36,941 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 20:25:36,941 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 20:25:36,941 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 20:25:36,942 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 20:25:36,942 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 20:25:36,942 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 20:25:36,942 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 20:25:36,942 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 20:25:36,942 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 20:25:36,942 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 20:25:36,942 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-07-21 20:25:36,942 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 20:25:36,943 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,943 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,943 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,943 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,943 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,943 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 20:25:36,943 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 20:25:36,943 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 20:25:36,943 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 20:25:36,943 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 20:25:36,943 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 20:25:36,944 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 20:25:36,944 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 20:25:36,944 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 20:25:36,944 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 20:25:36,944 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,944 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,944 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,944 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,944 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,944 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 20:25:36,945 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 20:25:36,945 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 20:25:36,945 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 20:25:36,945 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 20:25:36,945 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 20:25:36,945 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 20:25:36,945 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 20:25:36,945 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 20:25:36,945 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 20:25:36,946 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 20:25:36,946 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 20:25:36,946 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 20:25:36,946 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,946 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,946 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,946 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,946 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,947 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 20:25:36,947 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 20:25:36,947 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 20:25:36,947 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 20:25:36,947 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 20:25:36,947 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 20:25:36,947 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 20:25:36,947 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 20:25:36,947 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 20:25:36,948 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,948 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,948 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,948 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,948 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,948 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,948 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,948 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 20:25:36,948 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 20:25:36,948 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 20:25:36,949 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 20:25:36,949 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 20:25:36,949 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 20:25:36,949 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 20:25:36,949 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 20:25:36,949 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 20:25:36,949 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 20:25:36,949 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 20:25:36,949 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 20:25:36,950 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 20:25:36,950 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,950 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,950 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,950 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,950 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 20:25:36,950 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,950 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,950 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 20:25:36,950 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 20:25:36,951 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 20:25:36,951 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 20:25:36,951 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 20:25:36,951 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 20:25:36,951 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 20:25:36,951 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 20:25:36,951 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 20:25:36,951 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 20:25:36,951 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 20:25:36,952 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 20:25:36,952 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 20:25:36,952 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,952 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,952 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,952 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,952 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,952 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,952 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 20:25:36,953 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 20:25:36,953 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 20:25:36,953 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 20:25:36,953 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 20:25:36,953 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 20:25:36,953 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 20:25:36,953 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 20:25:36,953 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 20:25:36,953 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 20:25:36,954 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 20:25:36,954 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a19~0)| 9))) (.cse1 (and (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)))) (.cse2 (not (<= 2 |old(~a10~0)|))) (.cse5 (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (<= 9 ~a19~0) (not (< |old(~a10~0)| 4)) (<= 23 ~a1~0) .cse0 .cse1 .cse2) (or (forall ((v_~a1~0_433 Int)) (let ((.cse4 (mod v_~a1~0_433 25))) (let ((.cse3 (mod (+ (* .cse4 5) 10) 25))) (or (not (<= .cse3 (+ |old(~a1~0)| 12))) (not (< v_~a1~0_433 0)) (= 0 .cse3) (= 0 .cse4) (not (< (* 5 .cse4) 65)))))) .cse5 (not (<= |old(~a19~0)| 8))) (or (not (<= 4 |old(~a10~0)|)) .cse5 .cse0) (or .cse5 .cse0 .cse1 .cse2) (or .cse5 (not (<= |old(~a10~0)| 2))))) [2020-07-21 20:25:36,954 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 20:25:36,954 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 20:25:36,954 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 20:25:36,954 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,954 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,954 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 20:25:36,955 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 20:25:36,956 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 20:25:36,957 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:25:36,958 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 20:25:36,958 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:25:36,958 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:25:36,959 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 20:25:36,959 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:25:36,959 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 9))) (or (and (<= ~a19~0 8) (exists ((v_~a1~0_433 Int)) (let ((.cse1 (mod v_~a1~0_433 25))) (let ((.cse0 (mod (+ (* .cse1 5) 10) 25))) (and (not (= 0 .cse0)) (< (* 5 .cse1) 65) (not (= 0 .cse1)) (<= .cse0 (+ ~a1~0 12)) (< v_~a1~0_433 0)))))) (and .cse2 (<= 9 ~a19~0)) (and .cse2 (<= 4 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)))) [2020-07-21 20:25:36,959 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 20:25:36,959 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 20:25:36,959 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 9))) (or (and (<= ~a19~0 8) (exists ((v_~a1~0_433 Int)) (let ((.cse1 (mod v_~a1~0_433 25))) (let ((.cse0 (mod (+ (* .cse1 5) 10) 25))) (and (not (= 0 .cse0)) (< (* 5 .cse1) 65) (not (= 0 .cse1)) (<= .cse0 (+ ~a1~0 12)) (< v_~a1~0_433 0)))))) (and .cse2 (<= 9 ~a19~0)) (and .cse2 (<= 4 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)))) [2020-07-21 20:25:36,959 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:25:36,971 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:36,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:36,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:36,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:36,973 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:36,985 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:36,985 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:36,986 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:36,986 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:36,986 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:36,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:25:36 BoogieIcfgContainer [2020-07-21 20:25:36,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:25:36,991 INFO L168 Benchmark]: Toolchain (without parser) took 858866.99 ms. Allocated memory was 138.4 MB in the beginning and 546.3 MB in the end (delta: 407.9 MB). Free memory was 100.7 MB in the beginning and 165.6 MB in the end (delta: -64.9 MB). Peak memory consumption was 456.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:25:36,992 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 20:25:36,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.01 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 100.2 MB in the beginning and 172.3 MB in the end (delta: -72.1 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:25:36,993 INFO L168 Benchmark]: Boogie Preprocessor took 114.36 ms. Allocated memory is still 205.5 MB. Free memory was 172.3 MB in the beginning and 167.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:25:36,994 INFO L168 Benchmark]: RCFGBuilder took 1598.97 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 167.3 MB in the beginning and 182.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-07-21 20:25:36,994 INFO L168 Benchmark]: TraceAbstraction took 856352.82 ms. Allocated memory was 238.6 MB in the beginning and 546.3 MB in the end (delta: 307.8 MB). Free memory was 182.5 MB in the beginning and 165.6 MB in the end (delta: 16.9 MB). Peak memory consumption was 438.2 MB. Max. memory is 7.1 GB. [2020-07-21 20:25:37,002 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 794.01 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 100.2 MB in the beginning and 172.3 MB in the end (delta: -72.1 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.36 ms. Allocated memory is still 205.5 MB. Free memory was 172.3 MB in the beginning and 167.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1598.97 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 167.3 MB in the beginning and 182.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 856352.82 ms. Allocated memory was 238.6 MB in the beginning and 546.3 MB in the end (delta: 307.8 MB). Free memory was 182.5 MB in the beginning and 165.6 MB in the end (delta: 16.9 MB). Peak memory consumption was 438.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 187]: 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 [2020-07-21 20:25:37,009 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:37,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:37,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:37,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:37,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:37,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:37,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:37,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:37,012 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 20:25:37,012 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] Derived loop invariant: (((((((a19 <= 8 && (\exists v_~a1~0_433 : int :: (((!(0 == (v_~a1~0_433 % 25 * 5 + 10) % 25) && 5 * (v_~a1~0_433 % 25) < 65) && !(0 == v_~a1~0_433 % 25)) && (v_~a1~0_433 % 25 * 5 + 10) % 25 <= a1 + 12) && v_~a1~0_433 < 0)) || (a19 <= 9 && 9 <= a19)) || (a19 <= 9 && 4 <= a10)) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || a10 <= 2) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 796.8s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 742.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 59.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 527 SDtfs, 3964 SDslu, 499 SDs, 0 SdLazy, 11325 SolverSat, 1944 SolverUnsat, 264 SolverUnknown, 0 SolverNotchecked, 595.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4662 GetRequests, 4553 SyntacticMatches, 9 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 161.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4343occurred in iteration=11, 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, 12 MinimizatonAttempts, 1719 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 119 PreInvPairs, 225 NumberOfFragments, 384 HoareAnnotationTreeSize, 119 FomulaSimplifications, 39600 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 26310 FormulaSimplificationTreeSizeReductionInter, 58.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 49.4s InterpolantComputationTime, 3248 NumberOfCodeBlocks, 3248 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 4305 ConstructedInterpolants, 75 QuantifiedInterpolants, 5517231 SizeOfPredicates, 18 NumberOfNonLiveVariables, 5313 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 3920/4279 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...