/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:11:24,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:11:24,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:11:24,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:11:24,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:11:24,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:11:24,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:11:24,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:11:24,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:11:24,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:11:24,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:11:24,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:11:24,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:11:24,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:11:24,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:11:24,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:11:24,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:11:24,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:11:24,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:11:24,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:11:24,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:11:24,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:11:24,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:11:24,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:11:24,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:11:24,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:11:24,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:11:24,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:11:24,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 14:11:24,467 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:11:24,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:11:24,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:11:24,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:11:24,472 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:11:24,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:11:24,473 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:11:24,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:11:24,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:11:24,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:11:24,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:11:24,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:11:24,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:11:24,474 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:11:24,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:11:24,474 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:11:24,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:11:24,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:11:24,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:11:24,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:11:24,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:11:24,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:11:24,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:11:24,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:11:24,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:11:24,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:11:24,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:24,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:11:24,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:11:24,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 14:11:24,778 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:11:24,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:11:24,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:11:24,797 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:11:24,797 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:11:24,798 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label01.c [2020-07-20 14:11:24,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6040ed646/c186d34037dd4127a3e06a17761b93de/FLAG6aae5e8dd [2020-07-20 14:11:25,528 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:11:25,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label01.c [2020-07-20 14:11:25,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6040ed646/c186d34037dd4127a3e06a17761b93de/FLAG6aae5e8dd [2020-07-20 14:11:25,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6040ed646/c186d34037dd4127a3e06a17761b93de [2020-07-20 14:11:25,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:11:25,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:11:25,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:11:25,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:11:25,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:11:25,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:11:25" (1/1) ... [2020-07-20 14:11:25,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c52c8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:25, skipping insertion in model container [2020-07-20 14:11:25,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:11:25" (1/1) ... [2020-07-20 14:11:25,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:11:25,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:11:26,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:11:26,243 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:11:26,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:11:26,715 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:11:26,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:26 WrapperNode [2020-07-20 14:11:26,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:11:26,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:11:26,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:11:26,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:11:26,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:26" (1/1) ... [2020-07-20 14:11:26,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:26" (1/1) ... [2020-07-20 14:11:26,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:26" (1/1) ... [2020-07-20 14:11:26,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:26" (1/1) ... [2020-07-20 14:11:26,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:26" (1/1) ... [2020-07-20 14:11:26,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:26" (1/1) ... [2020-07-20 14:11:26,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:26" (1/1) ... [2020-07-20 14:11:26,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:11:26,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:11:26,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:11:26,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:11:26,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:11:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:11:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:11:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:11:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:11:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:11:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:11:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:11:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:11:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:11:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:11:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:11:28,667 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:11:28,668 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:11:28,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:11:28 BoogieIcfgContainer [2020-07-20 14:11:28,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:11:28,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:11:28,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:11:28,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:11:28,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:11:25" (1/3) ... [2020-07-20 14:11:28,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8f92bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:11:28, skipping insertion in model container [2020-07-20 14:11:28,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:11:26" (2/3) ... [2020-07-20 14:11:28,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8f92bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:11:28, skipping insertion in model container [2020-07-20 14:11:28,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:11:28" (3/3) ... [2020-07-20 14:11:28,684 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label01.c [2020-07-20 14:11:28,695 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:11:28,704 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:11:28,719 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:11:28,749 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:11:28,749 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:11:28,749 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:11:28,749 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:11:28,749 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:11:28,750 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:11:28,750 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:11:28,750 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:11:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-20 14:11:28,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-20 14:11:28,783 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:28,784 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] [2020-07-20 14:11:28,784 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:28,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:28,791 INFO L82 PathProgramCache]: Analyzing trace with hash -184228989, now seen corresponding path program 1 times [2020-07-20 14:11:28,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:28,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291418451] [2020-07-20 14:11:28,801 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:28,932 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:28,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:28,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:11:28,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:29,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:29,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:29,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291418451] [2020-07-20 14:11:29,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:29,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:11:29,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894665270] [2020-07-20 14:11:29,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:11:29,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:29,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:11:29,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:29,037 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-07-20 14:11:30,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:30,264 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2020-07-20 14:11:30,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:11:30,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-07-20 14:11:30,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:30,284 INFO L225 Difference]: With dead ends: 688 [2020-07-20 14:11:30,284 INFO L226 Difference]: Without dead ends: 372 [2020-07-20 14:11:30,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:30,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-07-20 14:11:30,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2020-07-20 14:11:30,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-07-20 14:11:30,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 560 transitions. [2020-07-20 14:11:30,368 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 560 transitions. Word has length 60 [2020-07-20 14:11:30,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:30,369 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 560 transitions. [2020-07-20 14:11:30,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:11:30,369 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 560 transitions. [2020-07-20 14:11:30,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-20 14:11:30,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:30,375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:30,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:30,590 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:30,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:30,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1598273241, now seen corresponding path program 1 times [2020-07-20 14:11:30,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:30,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211458368] [2020-07-20 14:11:30,593 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:30,719 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:30,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:30,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:11:30,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:30,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:30,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211458368] [2020-07-20 14:11:30,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:30,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:11:30,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411905847] [2020-07-20 14:11:30,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:11:30,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:30,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:11:30,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:11:30,810 INFO L87 Difference]: Start difference. First operand 372 states and 560 transitions. Second operand 5 states. [2020-07-20 14:11:32,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:32,314 INFO L93 Difference]: Finished difference Result 1124 states and 1723 transitions. [2020-07-20 14:11:32,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:11:32,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-07-20 14:11:32,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:32,322 INFO L225 Difference]: With dead ends: 1124 [2020-07-20 14:11:32,322 INFO L226 Difference]: Without dead ends: 758 [2020-07-20 14:11:32,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:11:32,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-07-20 14:11:32,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 744. [2020-07-20 14:11:32,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-07-20 14:11:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1012 transitions. [2020-07-20 14:11:32,383 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1012 transitions. Word has length 139 [2020-07-20 14:11:32,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:32,384 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 1012 transitions. [2020-07-20 14:11:32,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:11:32,385 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1012 transitions. [2020-07-20 14:11:32,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 14:11:32,387 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:32,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:32,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:32,603 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:32,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1583538671, now seen corresponding path program 1 times [2020-07-20 14:11:32,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:32,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640592624] [2020-07-20 14:11:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:32,700 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:32,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:32,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:11:32,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:32,752 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:32,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:32,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640592624] [2020-07-20 14:11:32,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:32,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:11:32,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283628390] [2020-07-20 14:11:32,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:11:32,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:32,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:11:32,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:32,756 INFO L87 Difference]: Start difference. First operand 744 states and 1012 transitions. Second operand 3 states. [2020-07-20 14:11:33,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:33,726 INFO L93 Difference]: Finished difference Result 1848 states and 2562 transitions. [2020-07-20 14:11:33,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:11:33,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-20 14:11:33,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:33,743 INFO L225 Difference]: With dead ends: 1848 [2020-07-20 14:11:33,743 INFO L226 Difference]: Without dead ends: 1110 [2020-07-20 14:11:33,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:33,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2020-07-20 14:11:33,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1110. [2020-07-20 14:11:33,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1110 states. [2020-07-20 14:11:33,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1468 transitions. [2020-07-20 14:11:33,797 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1468 transitions. Word has length 143 [2020-07-20 14:11:33,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:33,797 INFO L479 AbstractCegarLoop]: Abstraction has 1110 states and 1468 transitions. [2020-07-20 14:11:33,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:11:33,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1468 transitions. [2020-07-20 14:11:33,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-20 14:11:33,802 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:33,802 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:34,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:34,019 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:34,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:34,020 INFO L82 PathProgramCache]: Analyzing trace with hash -956755790, now seen corresponding path program 1 times [2020-07-20 14:11:34,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:34,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914218767] [2020-07-20 14:11:34,021 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:34,115 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:34,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:34,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:11:34,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:34,185 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:34,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:34,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914218767] [2020-07-20 14:11:34,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:34,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:11:34,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510155908] [2020-07-20 14:11:34,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:11:34,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:34,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:11:34,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:34,188 INFO L87 Difference]: Start difference. First operand 1110 states and 1468 transitions. Second operand 3 states. [2020-07-20 14:11:35,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:35,168 INFO L93 Difference]: Finished difference Result 2398 states and 3253 transitions. [2020-07-20 14:11:35,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:11:35,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2020-07-20 14:11:35,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:35,187 INFO L225 Difference]: With dead ends: 2398 [2020-07-20 14:11:35,187 INFO L226 Difference]: Without dead ends: 1294 [2020-07-20 14:11:35,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2020-07-20 14:11:35,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1294. [2020-07-20 14:11:35,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1294 states. [2020-07-20 14:11:35,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1740 transitions. [2020-07-20 14:11:35,250 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1740 transitions. Word has length 172 [2020-07-20 14:11:35,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:35,252 INFO L479 AbstractCegarLoop]: Abstraction has 1294 states and 1740 transitions. [2020-07-20 14:11:35,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:11:35,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1740 transitions. [2020-07-20 14:11:35,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-20 14:11:35,264 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:35,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:11:35,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:35,479 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:35,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:35,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1698067270, now seen corresponding path program 1 times [2020-07-20 14:11:35,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:35,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209805369] [2020-07-20 14:11:35,480 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:35,610 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:35,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:35,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:11:35,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:35,720 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:35,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:35,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209805369] [2020-07-20 14:11:35,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:35,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:11:35,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385317252] [2020-07-20 14:11:35,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:11:35,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:35,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:11:35,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:11:35,725 INFO L87 Difference]: Start difference. First operand 1294 states and 1740 transitions. Second operand 5 states. [2020-07-20 14:11:37,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:37,107 INFO L93 Difference]: Finished difference Result 3358 states and 4808 transitions. [2020-07-20 14:11:37,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:11:37,118 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2020-07-20 14:11:37,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:37,131 INFO L225 Difference]: With dead ends: 3358 [2020-07-20 14:11:37,131 INFO L226 Difference]: Without dead ends: 2070 [2020-07-20 14:11:37,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:11:37,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2020-07-20 14:11:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 2040. [2020-07-20 14:11:37,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2040 states. [2020-07-20 14:11:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2040 states to 2040 states and 2712 transitions. [2020-07-20 14:11:37,204 INFO L78 Accepts]: Start accepts. Automaton has 2040 states and 2712 transitions. Word has length 200 [2020-07-20 14:11:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:37,205 INFO L479 AbstractCegarLoop]: Abstraction has 2040 states and 2712 transitions. [2020-07-20 14:11:37,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:11:37,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2040 states and 2712 transitions. [2020-07-20 14:11:37,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-07-20 14:11:37,215 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:37,216 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, 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] [2020-07-20 14:11:37,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:37,431 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:37,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:37,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1709529065, now seen corresponding path program 1 times [2020-07-20 14:11:37,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:37,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648529916] [2020-07-20 14:11:37,433 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:37,550 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:37,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:37,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:11:37,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:37,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:11:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:11:37,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648529916] [2020-07-20 14:11:37,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:11:37,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:11:37,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477501317] [2020-07-20 14:11:37,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:11:37,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:37,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:11:37,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:11:37,809 INFO L87 Difference]: Start difference. First operand 2040 states and 2712 transitions. Second operand 7 states. [2020-07-20 14:11:40,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:40,356 INFO L93 Difference]: Finished difference Result 5444 states and 7429 transitions. [2020-07-20 14:11:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:11:40,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 248 [2020-07-20 14:11:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:40,378 INFO L225 Difference]: With dead ends: 5444 [2020-07-20 14:11:40,379 INFO L226 Difference]: Without dead ends: 3410 [2020-07-20 14:11:40,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 491 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:11:40,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2020-07-20 14:11:40,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3166. [2020-07-20 14:11:40,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3166 states. [2020-07-20 14:11:40,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 3994 transitions. [2020-07-20 14:11:40,480 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 3994 transitions. Word has length 248 [2020-07-20 14:11:40,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:40,481 INFO L479 AbstractCegarLoop]: Abstraction has 3166 states and 3994 transitions. [2020-07-20 14:11:40,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:11:40,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 3994 transitions. [2020-07-20 14:11:40,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-07-20 14:11:40,488 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:40,488 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 14:11:40,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:40,703 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:40,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:40,704 INFO L82 PathProgramCache]: Analyzing trace with hash -689541770, now seen corresponding path program 1 times [2020-07-20 14:11:40,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:40,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802505215] [2020-07-20 14:11:40,705 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:40,836 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:40,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:40,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:11:40,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:40,931 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-07-20 14:11:40,932 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:40,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802505215] [2020-07-20 14:11:40,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:40,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:11:40,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863040209] [2020-07-20 14:11:40,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:11:40,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:40,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:11:40,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:40,934 INFO L87 Difference]: Start difference. First operand 3166 states and 3994 transitions. Second operand 3 states. [2020-07-20 14:11:41,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:41,822 INFO L93 Difference]: Finished difference Result 4456 states and 5650 transitions. [2020-07-20 14:11:41,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:11:41,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2020-07-20 14:11:41,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:41,848 INFO L225 Difference]: With dead ends: 4456 [2020-07-20 14:11:41,848 INFO L226 Difference]: Without dead ends: 4454 [2020-07-20 14:11:41,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:41,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-07-20 14:11:41,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3720. [2020-07-20 14:11:41,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3720 states. [2020-07-20 14:11:42,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3720 states to 3720 states and 4706 transitions. [2020-07-20 14:11:42,001 INFO L78 Accepts]: Start accepts. Automaton has 3720 states and 4706 transitions. Word has length 277 [2020-07-20 14:11:42,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:42,003 INFO L479 AbstractCegarLoop]: Abstraction has 3720 states and 4706 transitions. [2020-07-20 14:11:42,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:11:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3720 states and 4706 transitions. [2020-07-20 14:11:42,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-07-20 14:11:42,018 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:11:42,020 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 14:11:42,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:42,235 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:11:42,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:11:42,235 INFO L82 PathProgramCache]: Analyzing trace with hash -409792351, now seen corresponding path program 1 times [2020-07-20 14:11:42,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:11:42,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845883396] [2020-07-20 14:11:42,236 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:42,545 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:11:42,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:11:42,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:11:42,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:11:42,664 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-07-20 14:11:42,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:11:42,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845883396] [2020-07-20 14:11:42,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:11:42,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:11:42,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022511447] [2020-07-20 14:11:42,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:11:42,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:11:42,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:11:42,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:42,669 INFO L87 Difference]: Start difference. First operand 3720 states and 4706 transitions. Second operand 3 states. [2020-07-20 14:11:43,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:11:43,807 INFO L93 Difference]: Finished difference Result 9080 states and 11636 transitions. [2020-07-20 14:11:43,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:11:43,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 284 [2020-07-20 14:11:43,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:11:43,813 INFO L225 Difference]: With dead ends: 9080 [2020-07-20 14:11:43,813 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:11:43,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 281 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:11:43,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:11:43,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:11:43,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:11:43,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:11:43,831 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 284 [2020-07-20 14:11:43,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:11:43,831 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:11:43,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:11:43,832 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:11:43,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:11:44,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:11:44,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:11:45,121 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 44 [2020-07-20 14:11:45,293 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:11:45,294 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (<= ~a15~0 |old(~a15~0)|) (<= |old(~a15~0)| ~a15~0)) [2020-07-20 14:11:45,294 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:11:45,294 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-20 14:11:45,294 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-20 14:11:45,294 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,294 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,294 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,294 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-20 14:11:45,295 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 14:11:45,295 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 14:11:45,295 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 14:11:45,295 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-20 14:11:45,295 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-20 14:11:45,295 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-20 14:11:45,295 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-20 14:11:45,295 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,295 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,296 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,296 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-20 14:11:45,296 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-20 14:11:45,296 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 14:11:45,296 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 14:11:45,296 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 14:11:45,296 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-20 14:11:45,296 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-20 14:11:45,297 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-20 14:11:45,297 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,297 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,297 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,297 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-20 14:11:45,297 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 14:11:45,297 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 14:11:45,297 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 14:11:45,298 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-20 14:11:45,298 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-20 14:11:45,298 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-20 14:11:45,298 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-20 14:11:45,298 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-20 14:11:45,298 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,298 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,299 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,299 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-20 14:11:45,299 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 14:11:45,299 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 14:11:45,299 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 14:11:45,299 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-20 14:11:45,299 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-20 14:11:45,299 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-20 14:11:45,299 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,300 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,300 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,300 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-20 14:11:45,300 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 14:11:45,300 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 14:11:45,300 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 14:11:45,300 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-20 14:11:45,300 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-20 14:11:45,301 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-20 14:11:45,301 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-20 14:11:45,301 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-20 14:11:45,301 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,301 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,301 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,301 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,301 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-20 14:11:45,301 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 14:11:45,302 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 14:11:45,302 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 14:11:45,302 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-20 14:11:45,302 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-20 14:11:45,302 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-20 14:11:45,302 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-20 14:11:45,302 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,302 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,303 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,303 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 14:11:45,303 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 14:11:45,303 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 14:11:45,303 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-20 14:11:45,303 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-20 14:11:45,303 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-20 14:11:45,303 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-20 14:11:45,304 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-20 14:11:45,304 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,304 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,304 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,304 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-20 14:11:45,304 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-20 14:11:45,304 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 14:11:45,304 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 14:11:45,304 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 14:11:45,304 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-20 14:11:45,305 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse4 (<= ~a12~0 |old(~a12~0)|)) (.cse5 (<= ~a15~0 |old(~a15~0)|)) (.cse7 (<= |old(~a15~0)| ~a15~0))) (let ((.cse9 (not (<= |old(~a21~0)| 7))) (.cse6 (<= ~a21~0 7)) (.cse1 (<= 9 ~a21~0)) (.cse8 (not (<= |old(~a15~0)| 8))) (.cse2 (not (<= 9 |old(~a21~0)|))) (.cse3 (and .cse4 .cse5 .cse7)) (.cse0 (not (< 11 |old(~a12~0)|)))) (and (or (not (<= 10 |old(~a21~0)|)) (<= 10 ~a21~0)) (or .cse0 .cse1 .cse2) (or .cse3 .cse0) (or (and .cse4 .cse5 .cse6 .cse7) .cse8 .cse9) (or .cse0 .cse9 .cse6) (or (and .cse4 .cse5 .cse1 .cse7) .cse8 .cse2) (or .cse3 (not (<= 7 |old(~a15~0)|))) (or (< 11 ~a12~0) .cse0)))) [2020-07-20 14:11:45,305 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-20 14:11:45,305 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-20 14:11:45,305 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,305 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,305 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,306 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 14:11:45,306 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 14:11:45,306 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 14:11:45,306 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-20 14:11:45,306 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-20 14:11:45,306 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-20 14:11:45,306 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-20 14:11:45,306 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-20 14:11:45,306 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,306 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,307 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,307 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-20 14:11:45,307 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-20 14:11:45,307 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 14:11:45,307 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 14:11:45,307 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 14:11:45,307 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-20 14:11:45,307 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-20 14:11:45,307 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-20 14:11:45,308 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,308 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,308 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,308 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-20 14:11:45,308 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 14:11:45,308 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 14:11:45,308 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 14:11:45,308 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-20 14:11:45,308 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-20 14:11:45,309 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-20 14:11:45,309 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-20 14:11:45,309 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,309 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,309 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,309 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-20 14:11:45,309 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 14:11:45,309 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 14:11:45,309 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 14:11:45,309 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-20 14:11:45,310 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 166) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,311 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 14:11:45,312 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,313 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 14:11:45,314 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,314 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-20 14:11:45,314 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-20 14:11:45,314 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-20 14:11:45,314 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 14:11:45,314 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 14:11:45,314 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 14:11:45,315 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-20 14:11:45,315 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-20 14:11:45,315 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-20 14:11:45,315 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-20 14:11:45,315 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,315 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,315 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,315 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-20 14:11:45,315 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 14:11:45,316 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 14:11:45,316 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 14:11:45,316 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-20 14:11:45,316 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-20 14:11:45,316 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-20 14:11:45,316 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-20 14:11:45,316 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,316 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,316 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,317 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-20 14:11:45,317 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-20 14:11:45,317 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 14:11:45,317 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 14:11:45,317 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 14:11:45,317 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-20 14:11:45,317 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-20 14:11:45,317 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-20 14:11:45,317 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,318 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,318 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,318 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-20 14:11:45,318 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 14:11:45,318 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 14:11:45,318 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 14:11:45,318 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-20 14:11:45,318 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-20 14:11:45,318 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-20 14:11:45,318 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-20 14:11:45,319 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-20 14:11:45,319 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,319 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,319 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 14:11:45,319 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-20 14:11:45,319 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 14:11:45,319 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 14:11:45,319 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 14:11:45,320 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-20 14:11:45,320 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:11:45,320 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (<= 7 ~a15~0) (<= ~a15~0 8) (<= ~a21~0 7)) [2020-07-20 14:11:45,320 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:11:45,320 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:11:45,320 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (<= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 |old(~a12~0)|) (<= ~a15~0 |old(~a15~0)|) (<= ~a21~0 7) (<= |old(~a15~0)| ~a15~0)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= |old(~a21~0)| 7))) [2020-07-20 14:11:45,320 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-20 14:11:45,321 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (or (< 11 ~a12~0) (<= 7 ~a15~0) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= |old(~a21~0)| 7)) (<= 9 ~a21~0) (<= ~a21~0 7)) [2020-07-20 14:11:45,321 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-20 14:11:45,321 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-20 14:11:45,321 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (or (< 11 ~a12~0) (<= 7 ~a15~0) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= |old(~a21~0)| 7)) (<= 9 ~a21~0) (<= ~a21~0 7)) [2020-07-20 14:11:45,321 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-20 14:11:45,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:11:45 BoogieIcfgContainer [2020-07-20 14:11:45,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:11:45,343 INFO L168 Benchmark]: Toolchain (without parser) took 19627.21 ms. Allocated memory was 145.8 MB in the beginning and 449.3 MB in the end (delta: 303.6 MB). Free memory was 100.4 MB in the beginning and 293.7 MB in the end (delta: -193.4 MB). Peak memory consumption was 321.3 MB. Max. memory is 7.1 GB. [2020-07-20 14:11:45,344 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 14:11:45,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 998.74 ms. Allocated memory was 145.8 MB in the beginning and 207.1 MB in the end (delta: 61.3 MB). Free memory was 99.9 MB in the beginning and 170.4 MB in the end (delta: -70.5 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:11:45,346 INFO L168 Benchmark]: Boogie Preprocessor took 202.06 ms. Allocated memory is still 207.1 MB. Free memory was 170.4 MB in the beginning and 164.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-07-20 14:11:45,347 INFO L168 Benchmark]: RCFGBuilder took 1754.66 ms. Allocated memory was 207.1 MB in the beginning and 240.1 MB in the end (delta: 33.0 MB). Free memory was 164.8 MB in the beginning and 159.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2020-07-20 14:11:45,348 INFO L168 Benchmark]: TraceAbstraction took 16665.06 ms. Allocated memory was 240.1 MB in the beginning and 449.3 MB in the end (delta: 209.2 MB). Free memory was 158.4 MB in the beginning and 293.7 MB in the end (delta: -135.4 MB). Peak memory consumption was 285.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:11:45,352 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 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 998.74 ms. Allocated memory was 145.8 MB in the beginning and 207.1 MB in the end (delta: 61.3 MB). Free memory was 99.9 MB in the beginning and 170.4 MB in the end (delta: -70.5 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 202.06 ms. Allocated memory is still 207.1 MB. Free memory was 170.4 MB in the beginning and 164.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1754.66 ms. Allocated memory was 207.1 MB in the beginning and 240.1 MB in the end (delta: 33.0 MB). Free memory was 164.8 MB in the beginning and 159.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16665.06 ms. Allocated memory was 240.1 MB in the beginning and 449.3 MB in the end (delta: 209.2 MB). Free memory was 158.4 MB in the beginning and 293.7 MB in the end (delta: -135.4 MB). Peak memory consumption was 285.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 166]: 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: 880]: Loop Invariant Derived loop invariant: ((((((11 < a12 || 7 <= a15) || !(\old(a12) + 49 <= 0)) || !(7 <= \old(a15))) || !(\old(a15) <= 8)) || !(\old(a21) <= 7)) || 9 <= a21) || a21 <= 7 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.3s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1061 SDtfs, 2087 SDslu, 200 SDs, 0 SdLazy, 6778 SolverSat, 1171 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1769 GetRequests, 1747 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3720occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 1022 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 87 PreInvPairs, 147 NumberOfFragments, 235 HoareAnnotationTreeSize, 87 FomulaSimplifications, 4014 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1179 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1523 NumberOfCodeBlocks, 1523 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 1762 ConstructedInterpolants, 0 QuantifiedInterpolants, 726578 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2741 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 983/987 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...