/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:27:17,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:27:17,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:27:17,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:27:17,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:27:17,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:27:17,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:27:17,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:27:17,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:27:17,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:27:17,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:27:17,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:27:17,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:27:17,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:27:17,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:27:17,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:27:17,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:27:17,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:27:17,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:27:17,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:27:17,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:27:17,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:27:17,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:27:17,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:27:17,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:27:17,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:27:17,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:27:17,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:27:17,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:27:17,585 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:27:17,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:27:17,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:27:17,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:27:17,587 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:27:17,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:27:17,587 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:27:17,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:27:17,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:27:17,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:27:17,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:27:17,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:27:17,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:27:17,588 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:27:17,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:27:17,589 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:27:17,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:27:17,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:27:17,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:27:17,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:27:17,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:27:17,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:27:17,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:27:17,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:27:17,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:27:17,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:27:17,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:17,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:27:17,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:27:17,592 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 -> NOT_INCREMENTALLY [2020-07-21 11:27:17,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:27:17,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:27:17,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:27:17,893 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:27:17,893 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:27:17,894 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-21 11:27:17,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a0ac128/57003189945d4b51809c92c3e5aead4b/FLAG1c0876c7e [2020-07-21 11:27:18,571 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:27:18,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-21 11:27:18,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a0ac128/57003189945d4b51809c92c3e5aead4b/FLAG1c0876c7e [2020-07-21 11:27:18,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a0ac128/57003189945d4b51809c92c3e5aead4b [2020-07-21 11:27:18,830 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:27:18,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:27:18,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:27:18,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:27:18,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:27:18,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:27:18" (1/1) ... [2020-07-21 11:27:18,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c22891f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:18, skipping insertion in model container [2020-07-21 11:27:18,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:27:18" (1/1) ... [2020-07-21 11:27:18,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:27:18,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:27:19,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:27:19,350 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:27:19,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:27:19,596 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:27:19,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:19 WrapperNode [2020-07-21 11:27:19,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:27:19,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:27:19,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:27:19,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:27:19,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:19" (1/1) ... [2020-07-21 11:27:19,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:19" (1/1) ... [2020-07-21 11:27:19,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:19" (1/1) ... [2020-07-21 11:27:19,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:19" (1/1) ... [2020-07-21 11:27:19,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:19" (1/1) ... [2020-07-21 11:27:19,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:19" (1/1) ... [2020-07-21 11:27:19,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:19" (1/1) ... [2020-07-21 11:27:19,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:27:19,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:27:19,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:27:19,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:27:19,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:27:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:27:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:27:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:27:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:27:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:27:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:27:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:27:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:27:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:27:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:27:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:27:20,924 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:27:20,925 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:27:20,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:27:20 BoogieIcfgContainer [2020-07-21 11:27:20,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:27:20,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:27:20,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:27:20,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:27:20,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:27:18" (1/3) ... [2020-07-21 11:27:20,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11732e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:27:20, skipping insertion in model container [2020-07-21 11:27:20,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:19" (2/3) ... [2020-07-21 11:27:20,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11732e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:27:20, skipping insertion in model container [2020-07-21 11:27:20,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:27:20" (3/3) ... [2020-07-21 11:27:20,941 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-07-21 11:27:20,952 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:27:20,961 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:27:20,977 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:27:21,006 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:27:21,006 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:27:21,006 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:27:21,007 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:27:21,007 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:27:21,007 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:27:21,007 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:27:21,008 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:27:21,033 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 11:27:21,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-21 11:27:21,045 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:21,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:21,047 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:21,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:21,054 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2020-07-21 11:27:21,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:21,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844868117] [2020-07-21 11:27:21,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:21,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:27:21,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:21,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:21,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844868117] [2020-07-21 11:27:21,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:21,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:27:21,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212228594] [2020-07-21 11:27:21,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:27:21,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:21,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:27:21,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:21,347 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 11:27:22,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:22,414 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 11:27:22,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:27:22,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-07-21 11:27:22,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:22,447 INFO L225 Difference]: With dead ends: 615 [2020-07-21 11:27:22,448 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 11:27:22,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:22,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 11:27:22,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 11:27:22,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 11:27:22,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 11:27:22,580 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 98 [2020-07-21 11:27:22,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:22,582 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 11:27:22,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:27:22,583 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 11:27:22,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 11:27:22,600 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:22,600 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 11:27:22,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:22,816 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:22,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:22,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1720377347, now seen corresponding path program 1 times [2020-07-21 11:27:22,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:22,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250764882] [2020-07-21 11:27:22,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:22,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:27:22,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:23,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:23,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250764882] [2020-07-21 11:27:23,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:23,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:27:23,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100709573] [2020-07-21 11:27:23,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:27:23,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:23,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:27:23,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:27:23,012 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 5 states. [2020-07-21 11:27:23,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:23,491 INFO L93 Difference]: Finished difference Result 629 states and 962 transitions. [2020-07-21 11:27:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:27:23,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-07-21 11:27:23,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:23,496 INFO L225 Difference]: With dead ends: 629 [2020-07-21 11:27:23,496 INFO L226 Difference]: Without dead ends: 318 [2020-07-21 11:27:23,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:27:23,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-07-21 11:27:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 308. [2020-07-21 11:27:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-21 11:27:23,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 435 transitions. [2020-07-21 11:27:23,518 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 435 transitions. Word has length 113 [2020-07-21 11:27:23,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:23,518 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 435 transitions. [2020-07-21 11:27:23,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:27:23,519 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 435 transitions. [2020-07-21 11:27:23,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 11:27:23,521 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:23,521 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 11:27:23,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:23,735 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:23,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:23,736 INFO L82 PathProgramCache]: Analyzing trace with hash -540211274, now seen corresponding path program 1 times [2020-07-21 11:27:23,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:23,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876164776] [2020-07-21 11:27:23,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:23,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:27:23,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:23,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:23,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876164776] [2020-07-21 11:27:23,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:23,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:27:23,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985115642] [2020-07-21 11:27:23,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:27:23,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:23,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:27:23,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:27:23,896 INFO L87 Difference]: Start difference. First operand 308 states and 435 transitions. Second operand 5 states. [2020-07-21 11:27:24,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:24,781 INFO L93 Difference]: Finished difference Result 923 states and 1328 transitions. [2020-07-21 11:27:24,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:27:24,782 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-07-21 11:27:24,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:24,787 INFO L225 Difference]: With dead ends: 923 [2020-07-21 11:27:24,787 INFO L226 Difference]: Without dead ends: 621 [2020-07-21 11:27:24,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:27:24,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-07-21 11:27:24,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 605. [2020-07-21 11:27:24,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-07-21 11:27:24,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 764 transitions. [2020-07-21 11:27:24,815 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 764 transitions. Word has length 120 [2020-07-21 11:27:24,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:24,816 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 764 transitions. [2020-07-21 11:27:24,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:27:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 764 transitions. [2020-07-21 11:27:24,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-21 11:27:24,819 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:24,819 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:25,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:25,035 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:25,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:25,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1255105582, now seen corresponding path program 1 times [2020-07-21 11:27:25,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:25,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199276766] [2020-07-21 11:27:25,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:25,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 11:27:25,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:25,158 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:25,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:25,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199276766] [2020-07-21 11:27:25,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:25,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:27:25,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391180587] [2020-07-21 11:27:25,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:27:25,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:25,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:27:25,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:27:25,161 INFO L87 Difference]: Start difference. First operand 605 states and 764 transitions. Second operand 5 states. [2020-07-21 11:27:25,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:25,993 INFO L93 Difference]: Finished difference Result 1682 states and 2209 transitions. [2020-07-21 11:27:25,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:27:25,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-21 11:27:25,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:26,004 INFO L225 Difference]: With dead ends: 1682 [2020-07-21 11:27:26,004 INFO L226 Difference]: Without dead ends: 1083 [2020-07-21 11:27:26,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:27:26,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2020-07-21 11:27:26,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1067. [2020-07-21 11:27:26,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1067 states. [2020-07-21 11:27:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1323 transitions. [2020-07-21 11:27:26,048 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1323 transitions. Word has length 124 [2020-07-21 11:27:26,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:26,048 INFO L479 AbstractCegarLoop]: Abstraction has 1067 states and 1323 transitions. [2020-07-21 11:27:26,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:27:26,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1323 transitions. [2020-07-21 11:27:26,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 11:27:26,052 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:26,052 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-07-21 11:27:26,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:26,267 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:26,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:26,268 INFO L82 PathProgramCache]: Analyzing trace with hash 741492135, now seen corresponding path program 1 times [2020-07-21 11:27:26,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:26,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776897212] [2020-07-21 11:27:26,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:26,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:26,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:26,386 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:26,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:27:26,461 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:26,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776897212] [2020-07-21 11:27:26,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:27:26,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:27:26,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707239973] [2020-07-21 11:27:26,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:27:26,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:26,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:27:26,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:27:26,464 INFO L87 Difference]: Start difference. First operand 1067 states and 1323 transitions. Second operand 6 states. [2020-07-21 11:27:27,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:27,270 INFO L93 Difference]: Finished difference Result 2290 states and 2871 transitions. [2020-07-21 11:27:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:27:27,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-21 11:27:27,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:27,279 INFO L225 Difference]: With dead ends: 2290 [2020-07-21 11:27:27,280 INFO L226 Difference]: Without dead ends: 1229 [2020-07-21 11:27:27,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:27:27,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2020-07-21 11:27:27,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1223. [2020-07-21 11:27:27,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-07-21 11:27:27,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1481 transitions. [2020-07-21 11:27:27,326 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1481 transitions. Word has length 129 [2020-07-21 11:27:27,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:27,327 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1481 transitions. [2020-07-21 11:27:27,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:27:27,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1481 transitions. [2020-07-21 11:27:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 11:27:27,331 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:27,331 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:27,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:27,545 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:27,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1004016671, now seen corresponding path program 1 times [2020-07-21 11:27:27,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:27,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946753968] [2020-07-21 11:27:27,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:27,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:27,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:27,663 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:27:27,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:27,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946753968] [2020-07-21 11:27:27,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:27,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:27:27,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023215550] [2020-07-21 11:27:27,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:27:27,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:27,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:27:27,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:27,666 INFO L87 Difference]: Start difference. First operand 1223 states and 1481 transitions. Second operand 3 states. [2020-07-21 11:27:28,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:28,268 INFO L93 Difference]: Finished difference Result 2884 states and 3595 transitions. [2020-07-21 11:27:28,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:27:28,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 11:27:28,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:28,280 INFO L225 Difference]: With dead ends: 2884 [2020-07-21 11:27:28,286 INFO L226 Difference]: Without dead ends: 1367 [2020-07-21 11:27:28,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:28,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-07-21 11:27:28,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1221. [2020-07-21 11:27:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1221 states. [2020-07-21 11:27:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1384 transitions. [2020-07-21 11:27:28,344 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1384 transitions. Word has length 133 [2020-07-21 11:27:28,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:28,346 INFO L479 AbstractCegarLoop]: Abstraction has 1221 states and 1384 transitions. [2020-07-21 11:27:28,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:27:28,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1384 transitions. [2020-07-21 11:27:28,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 11:27:28,350 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:28,350 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:28,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:28,564 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:28,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:28,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1254253877, now seen corresponding path program 1 times [2020-07-21 11:27:28,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:28,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141346202] [2020-07-21 11:27:28,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:28,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:27:28,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:28,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:27:28,743 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:28,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141346202] [2020-07-21 11:27:28,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:27:28,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:27:28,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149193557] [2020-07-21 11:27:28,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:27:28,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:28,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:27:28,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:27:28,745 INFO L87 Difference]: Start difference. First operand 1221 states and 1384 transitions. Second operand 6 states. [2020-07-21 11:27:29,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:29,876 INFO L93 Difference]: Finished difference Result 3338 states and 3778 transitions. [2020-07-21 11:27:29,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:27:29,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-21 11:27:29,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:29,887 INFO L225 Difference]: With dead ends: 3338 [2020-07-21 11:27:29,888 INFO L226 Difference]: Without dead ends: 1969 [2020-07-21 11:27:29,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:27:29,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-07-21 11:27:29,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1966. [2020-07-21 11:27:29,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-07-21 11:27:29,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2159 transitions. [2020-07-21 11:27:29,949 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2159 transitions. Word has length 146 [2020-07-21 11:27:29,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:29,950 INFO L479 AbstractCegarLoop]: Abstraction has 1966 states and 2159 transitions. [2020-07-21 11:27:29,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:27:29,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2159 transitions. [2020-07-21 11:27:29,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 11:27:29,956 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:29,957 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:30,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:30,171 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:30,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:30,172 INFO L82 PathProgramCache]: Analyzing trace with hash 2108658743, now seen corresponding path program 1 times [2020-07-21 11:27:30,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:30,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418949219] [2020-07-21 11:27:30,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:30,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:30,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:27:30,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:27:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:27:30,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418949219] [2020-07-21 11:27:30,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:27:30,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:27:30,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742326846] [2020-07-21 11:27:30,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:27:30,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:30,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:27:30,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:27:30,418 INFO L87 Difference]: Start difference. First operand 1966 states and 2159 transitions. Second operand 6 states. [2020-07-21 11:27:31,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:31,215 INFO L93 Difference]: Finished difference Result 3485 states and 3836 transitions. [2020-07-21 11:27:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 11:27:31,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-21 11:27:31,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:31,224 INFO L225 Difference]: With dead ends: 3485 [2020-07-21 11:27:31,225 INFO L226 Difference]: Without dead ends: 1824 [2020-07-21 11:27:31,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:27:31,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2020-07-21 11:27:31,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1670. [2020-07-21 11:27:31,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1670 states. [2020-07-21 11:27:31,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 1811 transitions. [2020-07-21 11:27:31,272 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 1811 transitions. Word has length 182 [2020-07-21 11:27:31,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:31,273 INFO L479 AbstractCegarLoop]: Abstraction has 1670 states and 1811 transitions. [2020-07-21 11:27:31,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:27:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 1811 transitions. [2020-07-21 11:27:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-21 11:27:31,280 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:31,280 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:27:31,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:31,496 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:31,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:31,496 INFO L82 PathProgramCache]: Analyzing trace with hash 698359958, now seen corresponding path program 1 times [2020-07-21 11:27:31,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:31,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441554357] [2020-07-21 11:27:31,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:31,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 11:27:31,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-07-21 11:27:31,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:31,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441554357] [2020-07-21 11:27:31,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:31,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:27:31,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255046984] [2020-07-21 11:27:31,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:27:31,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:31,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:27:31,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:31,667 INFO L87 Difference]: Start difference. First operand 1670 states and 1811 transitions. Second operand 3 states. [2020-07-21 11:27:32,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:32,121 INFO L93 Difference]: Finished difference Result 3320 states and 3624 transitions. [2020-07-21 11:27:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:27:32,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-07-21 11:27:32,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:32,132 INFO L225 Difference]: With dead ends: 3320 [2020-07-21 11:27:32,132 INFO L226 Difference]: Without dead ends: 2100 [2020-07-21 11:27:32,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:32,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-07-21 11:27:32,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1666. [2020-07-21 11:27:32,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1666 states. [2020-07-21 11:27:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 1802 transitions. [2020-07-21 11:27:32,187 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 1802 transitions. Word has length 204 [2020-07-21 11:27:32,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:32,187 INFO L479 AbstractCegarLoop]: Abstraction has 1666 states and 1802 transitions. [2020-07-21 11:27:32,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:27:32,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 1802 transitions. [2020-07-21 11:27:32,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-21 11:27:32,192 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:32,193 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:27:32,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:32,408 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:32,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:32,409 INFO L82 PathProgramCache]: Analyzing trace with hash 772945334, now seen corresponding path program 1 times [2020-07-21 11:27:32,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:32,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79190309] [2020-07-21 11:27:32,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:32,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:32,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 11:27:32,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:32,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79190309] [2020-07-21 11:27:32,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:32,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:27:32,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953102530] [2020-07-21 11:27:32,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:27:32,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:32,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:27:32,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:32,554 INFO L87 Difference]: Start difference. First operand 1666 states and 1802 transitions. Second operand 3 states. [2020-07-21 11:27:33,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:33,053 INFO L93 Difference]: Finished difference Result 3618 states and 3959 transitions. [2020-07-21 11:27:33,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:27:33,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-07-21 11:27:33,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:33,061 INFO L225 Difference]: With dead ends: 3618 [2020-07-21 11:27:33,061 INFO L226 Difference]: Without dead ends: 1790 [2020-07-21 11:27:33,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:33,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2020-07-21 11:27:33,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1790. [2020-07-21 11:27:33,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2020-07-21 11:27:33,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 1914 transitions. [2020-07-21 11:27:33,104 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 1914 transitions. Word has length 204 [2020-07-21 11:27:33,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:33,105 INFO L479 AbstractCegarLoop]: Abstraction has 1790 states and 1914 transitions. [2020-07-21 11:27:33,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:27:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 1914 transitions. [2020-07-21 11:27:33,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 11:27:33,112 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:33,113 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:33,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:33,327 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:33,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:33,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1962742350, now seen corresponding path program 1 times [2020-07-21 11:27:33,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:33,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670427580] [2020-07-21 11:27:33,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:33,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:27:33,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:33,497 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-07-21 11:27:33,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:33,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670427580] [2020-07-21 11:27:33,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:33,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:27:33,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079423218] [2020-07-21 11:27:33,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:27:33,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:33,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:27:33,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:33,503 INFO L87 Difference]: Start difference. First operand 1790 states and 1914 transitions. Second operand 3 states. [2020-07-21 11:27:33,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:33,896 INFO L93 Difference]: Finished difference Result 3420 states and 3666 transitions. [2020-07-21 11:27:33,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:27:33,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-07-21 11:27:33,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:33,898 INFO L225 Difference]: With dead ends: 3420 [2020-07-21 11:27:33,898 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:27:33,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:27:33,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:27:33,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:27:33,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:27:33,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2020-07-21 11:27:33,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:33,909 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:27:33,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:27:33,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:27:33,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:27:34,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:34,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:27:35,299 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 74 [2020-07-21 11:27:35,617 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-07-21 11:27:35,901 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-07-21 11:27:35,904 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:27:35,905 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 11:27:35,905 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:27:35,905 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,905 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,906 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,906 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,906 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,906 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 11:27:35,906 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 11:27:35,908 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 11:27:35,908 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 11:27:35,908 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 11:27:35,908 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 11:27:35,908 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 11:27:35,909 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 11:27:35,909 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 11:27:35,909 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 11:27:35,909 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:27:35,909 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:27:35,909 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 11:27:35,909 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,910 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,910 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,910 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,910 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 11:27:35,910 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,910 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 11:27:35,910 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 11:27:35,910 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 11:27:35,910 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 11:27:35,911 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 11:27:35,912 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 11:27:35,912 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 11:27:35,912 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:27:35,912 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:27:35,912 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 11:27:35,913 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 11:27:35,913 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 11:27:35,913 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:27:35,913 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:27:35,913 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 11:27:35,913 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,915 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,915 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,915 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,915 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,916 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2020-07-21 11:27:35,916 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:27:35,916 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 11:27:35,916 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:27:35,916 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 11:27:35,916 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 11:27:35,916 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 11:27:35,916 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 11:27:35,917 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 11:27:35,917 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 11:27:35,917 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 11:27:35,917 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 11:27:35,917 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,917 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,917 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,917 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,918 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,918 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 11:27:35,918 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 11:27:35,918 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 11:27:35,918 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 11:27:35,918 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 11:27:35,918 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 11:27:35,918 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 11:27:35,918 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 11:27:35,918 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 11:27:35,919 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 11:27:35,919 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 11:27:35,919 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 11:27:35,920 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 11:27:35,920 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,920 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,921 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,921 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,921 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,921 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 11:27:35,921 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 11:27:35,921 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 11:27:35,921 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 11:27:35,921 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 11:27:35,921 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 11:27:35,922 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 11:27:35,922 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 11:27:35,922 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 11:27:35,922 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 11:27:35,922 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 11:27:35,922 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 11:27:35,922 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 11:27:35,922 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:27:35,922 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 11:27:35,923 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:27:35,923 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,923 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,923 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,923 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,923 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 11:27:35,923 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,923 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:27:35,923 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,924 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:27:35,924 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:27:35,925 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:27:35,925 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,925 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,925 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 11:27:35,925 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 11:27:35,925 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 11:27:35,925 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 11:27:35,925 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 11:27:35,926 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 11:27:35,926 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 11:27:35,926 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 11:27:35,926 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 11:27:35,926 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 11:27:35,926 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 11:27:35,926 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,926 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,926 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,926 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,927 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,927 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,927 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 11:27:35,927 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 11:27:35,927 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 11:27:35,927 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 11:27:35,927 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 11:27:35,927 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 11:27:35,927 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 11:27:35,928 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 11:27:35,928 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 11:27:35,928 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 11:27:35,928 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 11:27:35,928 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,928 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,928 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,928 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,929 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,929 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,929 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 11:27:35,929 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 11:27:35,929 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 11:27:35,929 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 11:27:35,929 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 11:27:35,929 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 11:27:35,929 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 11:27:35,929 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 11:27:35,930 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 11:27:35,930 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 11:27:35,930 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 11:27:35,930 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 11:27:35,930 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 11:27:35,930 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 11:27:35,930 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,930 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,930 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,931 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse9 (= 1 |old(~a11~0)|)) (.cse11 (= 1 ~a11~0))) (let ((.cse14 (not (<= 9 |old(~a28~0)|))) (.cse12 (<= 9 ~a28~0)) (.cse17 (not (<= |old(~a17~0)| 7))) (.cse18 (<= ~a17~0 |old(~a17~0)|)) (.cse7 (= ~a25~0 |old(~a25~0)|)) (.cse16 (not (= 1 |old(~a25~0)|))) (.cse3 (<= ~a28~0 |old(~a28~0)|)) (.cse4 (<= ~a17~0 8)) (.cse5 (<= 8 ~a17~0)) (.cse10 (not .cse11)) (.cse6 (= ~a19~0 |old(~a19~0)|)) (.cse19 (= 1 ~a25~0)) (.cse0 (not (<= |old(~a28~0)| 7))) (.cse1 (not (<= 8 |old(~a17~0)|))) (.cse15 (not .cse9)) (.cse13 (not (= 1 |old(~a19~0)|))) (.cse8 (not (<= |old(~a28~0)| 10))) (.cse21 (not (<= 10 |old(~a28~0)|))) (.cse20 (<= 10 ~a28~0)) (.cse2 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7)) (or .cse8 .cse9 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse10 .cse6 .cse7)) (or (and .cse11 .cse3 .cse4 .cse5 .cse6 .cse12 .cse7) .cse13 .cse8 .cse14 .cse1 .cse2 .cse15) (or .cse8 .cse14 .cse16 .cse17 (and .cse18 .cse3 .cse6 .cse12 .cse19)) (or .cse8 (and .cse20 .cse10) .cse9 .cse16 .cse21 .cse2) (or .cse13 (and .cse3 .cse4 .cse5 .cse6 .cse19) .cse8 .cse1 .cse16 .cse2) (or .cse8 .cse16 .cse17 (and .cse18 .cse11 .cse3 .cse6 .cse19) .cse15) (or .cse8 .cse14 .cse9 .cse1 .cse2 .cse12) (or .cse8 .cse17 .cse21 (and .cse18 (<= ~a28~0 10) .cse20 .cse6 .cse7) .cse2) (or .cse13 .cse9 .cse1 .cse16 .cse21 (and .cse3 .cse4 .cse5 .cse20 .cse10 .cse6 .cse19) .cse2) (or .cse11 .cse0 .cse1 .cse2 .cse15) (or .cse13 .cse8 .cse21 .cse20 .cse2)))) [2020-07-21 11:27:35,932 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,932 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,932 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,932 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 11:27:35,932 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 11:27:35,932 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 11:27:35,932 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 11:27:35,933 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 11:27:35,933 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 11:27:35,933 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 11:27:35,933 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 11:27:35,933 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 11:27:35,933 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 11:27:35,933 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 11:27:35,933 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 11:27:35,934 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 11:27:35,934 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,934 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,934 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,934 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,934 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,934 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,934 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 11:27:35,935 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 11:27:35,935 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 11:27:35,935 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 11:27:35,935 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 11:27:35,935 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 11:27:35,935 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 11:27:35,935 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 11:27:35,935 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 11:27:35,936 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 11:27:35,936 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 11:27:35,936 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:27:35,936 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:27:35,936 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 11:27:35,936 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 11:27:35,936 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 11:27:35,936 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,937 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,937 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,937 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,937 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:35,937 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 11:27:35,937 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 11:27:35,937 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 11:27:35,937 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 11:27:35,938 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 11:27:35,938 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 11:27:35,938 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 11:27:35,938 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 11:27:35,938 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 11:27:35,938 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 11:27:35,938 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 11:27:35,938 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:27:35,939 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 11:27:35,939 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:27:35,939 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 11:27:35,939 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:27:35,939 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:27:35,939 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 11:27:35,939 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 11:27:35,940 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:27:35,940 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (not (= 1 ~a11~0)) (<= ~a28~0 7)) [2020-07-21 11:27:35,940 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:27:35,940 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:27:35,940 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (= 1 |old(~a11~0)|) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (not (= 1 ~a11~0)) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|))) [2020-07-21 11:27:35,941 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse11 (= 1 ~a11~0))) (let ((.cse9 (<= 10 ~a28~0)) (.cse5 (not .cse11)) (.cse3 (<= ~a28~0 7)) (.cse10 (<= 9 ~a28~0)) (.cse8 (<= ~a17~0 7)) (.cse4 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 8)) (.cse1 (<= 8 ~a17~0)) (.cse7 (<= ~a28~0 10)) (.cse2 (not (= 1 |old(~a25~0)|))) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse2 .cse5 .cse6) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse7 .cse2 .cse5) (and .cse2 .cse7 .cse8 .cse9) (not (<= 8 |old(~a17~0)|)) (and .cse4 .cse0 .cse7 .cse9) (and .cse4 .cse0 .cse1 .cse7 .cse2 .cse10) (and .cse4 .cse0 .cse1 .cse5 .cse3 (= ~a25~0 |old(~a25~0)|)) (= 1 |old(~a11~0)|) (and .cse7 .cse2 .cse8 .cse10 .cse6) (not (<= |old(~a17~0)| 8)) (and .cse11 .cse7 .cse2 .cse8 .cse6) (and .cse4 .cse0 .cse1 .cse7 .cse2 .cse6)))) [2020-07-21 11:27:35,941 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:27:35,941 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:27:35,941 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse11 (= 1 ~a11~0))) (let ((.cse9 (<= 10 ~a28~0)) (.cse5 (not .cse11)) (.cse3 (<= ~a28~0 7)) (.cse10 (<= 9 ~a28~0)) (.cse8 (<= ~a17~0 7)) (.cse4 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 8)) (.cse1 (<= 8 ~a17~0)) (.cse7 (<= ~a28~0 10)) (.cse2 (not (= 1 |old(~a25~0)|))) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse2 .cse5 .cse6) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse7 .cse2 .cse5) (and .cse2 .cse7 .cse8 .cse9) (not (<= 8 |old(~a17~0)|)) (and .cse4 .cse0 .cse7 .cse9) (and .cse4 .cse0 .cse1 .cse7 .cse2 .cse10) (and .cse4 .cse0 .cse1 .cse5 .cse3 (= ~a25~0 |old(~a25~0)|)) (= 1 |old(~a11~0)|) (and .cse7 .cse2 .cse8 .cse10 .cse6) (not (<= |old(~a17~0)| 8)) (and .cse11 .cse7 .cse2 .cse8 .cse6) (and .cse4 .cse0 .cse1 .cse7 .cse2 .cse6)))) [2020-07-21 11:27:35,941 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 11:27:35,941 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 11:27:35,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:27:35 BoogieIcfgContainer [2020-07-21 11:27:35,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:27:35,994 INFO L168 Benchmark]: Toolchain (without parser) took 17162.31 ms. Allocated memory was 145.8 MB in the beginning and 438.8 MB in the end (delta: 293.1 MB). Free memory was 101.7 MB in the beginning and 197.1 MB in the end (delta: -95.4 MB). Peak memory consumption was 262.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:35,995 INFO L168 Benchmark]: CDTParser took 0.20 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: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 11:27:35,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.71 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 101.2 MB in the beginning and 172.5 MB in the end (delta: -71.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:35,997 INFO L168 Benchmark]: Boogie Preprocessor took 125.78 ms. Allocated memory is still 205.5 MB. Free memory was 172.5 MB in the beginning and 167.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:35,998 INFO L168 Benchmark]: RCFGBuilder took 1207.74 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 167.6 MB in the beginning and 182.9 MB in the end (delta: -15.3 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:35,999 INFO L168 Benchmark]: TraceAbstraction took 15059.32 ms. Allocated memory was 238.6 MB in the beginning and 438.8 MB in the end (delta: 200.3 MB). Free memory was 182.9 MB in the beginning and 197.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 250.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:36,005 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.71 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 101.2 MB in the beginning and 172.5 MB in the end (delta: -71.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.78 ms. Allocated memory is still 205.5 MB. Free memory was 172.5 MB in the beginning and 167.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1207.74 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 167.6 MB in the beginning and 182.9 MB in the end (delta: -15.3 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15059.32 ms. Allocated memory was 238.6 MB in the beginning and 438.8 MB in the end (delta: 200.3 MB). Free memory was 182.9 MB in the beginning and 197.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 250.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a19)) || (((a17 <= 8 && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7)) || (((((1 == a19 && a17 <= 8) && 8 <= a17) && !(1 == \old(a25))) && !(1 == a11)) && 1 == a25)) || !(\old(a28) <= 7)) || ((((a17 <= 8 && 8 <= a17) && a28 <= 10) && !(1 == \old(a25))) && !(1 == a11))) || (((!(1 == \old(a25)) && a28 <= 10) && a17 <= 7) && 10 <= a28)) || !(8 <= \old(a17))) || (((1 == a19 && a17 <= 8) && a28 <= 10) && 10 <= a28)) || (((((1 == a19 && a17 <= 8) && 8 <= a17) && a28 <= 10) && !(1 == \old(a25))) && 9 <= a28)) || (((((1 == a19 && a17 <= 8) && 8 <= a17) && !(1 == a11)) && a28 <= 7) && a25 == \old(a25))) || 1 == \old(a11)) || ((((a28 <= 10 && !(1 == \old(a25))) && a17 <= 7) && 9 <= a28) && 1 == a25)) || !(\old(a17) <= 8)) || ((((1 == a11 && a28 <= 10) && !(1 == \old(a25))) && a17 <= 7) && 1 == a25)) || (((((1 == a19 && a17 <= 8) && 8 <= a17) && a28 <= 10) && !(1 == \old(a25))) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.1s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 958 SDtfs, 3435 SDslu, 426 SDs, 0 SdLazy, 5678 SolverSat, 858 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2162 GetRequests, 2116 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1966occurred 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: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 785 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 95 PreInvPairs, 135 NumberOfFragments, 846 HoareAnnotationTreeSize, 95 FomulaSimplifications, 3624 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1416 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1693 NumberOfCodeBlocks, 1693 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2136 ConstructedInterpolants, 0 QuantifiedInterpolants, 624460 SizeOfPredicates, 11 NumberOfNonLiveVariables, 4412 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 1077/1089 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...