/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 03:51:21,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 03:51:21,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 03:51:21,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-20 03:51:21,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 03:51:21,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 03:51:21,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 03:51:21,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 03:51:21,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 03:51:21,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 03:51:21,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 03:51:21,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 03:51:21,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 03:51:21,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 03:51:21,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 03:51:21,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 03:51:21,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 03:51:21,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 03:51:21,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 03:51:21,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 03:51:21,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 03:51:21,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 03:51:21,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 03:51:21,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 03:51:21,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 03:51:21,589 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 03:51:21,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 03:51:21,589 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 03:51:21,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 03:51:21,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 03:51:21,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 03:51:21,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 03:51:21,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 03:51:21,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 03:51:21,590 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 03:51:21,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 03:51:21,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 03:51:21,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 03:51:21,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 03:51:21,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 03:51:21,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 03:51:21,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 03:51:21,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 03:51:21,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 03:51:21,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 03:51:21,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 03:51:21,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 03:51:21,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 03:51:21,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 03:51:21,593 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 03:51:21,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 03:51:21,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 03:51:21,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 03:51:21,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 03:51:21,879 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 03:51:21,879 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 03:51:21,880 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-20 03:51:21,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cebdeab9/b37ab3f278a44c6aa4b3b24464e16a33/FLAG666b4a32d [2020-07-20 03:51:22,564 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 03:51:22,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-20 03:51:22,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cebdeab9/b37ab3f278a44c6aa4b3b24464e16a33/FLAG666b4a32d [2020-07-20 03:51:22,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cebdeab9/b37ab3f278a44c6aa4b3b24464e16a33 [2020-07-20 03:51:22,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 03:51:22,800 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 03:51:22,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 03:51:22,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 03:51:22,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 03:51:22,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:51:22" (1/1) ... [2020-07-20 03:51:22,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a602aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:22, skipping insertion in model container [2020-07-20 03:51:22,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:51:22" (1/1) ... [2020-07-20 03:51:22,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 03:51:22,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 03:51:23,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:51:23,421 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 03:51:23,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:51:23,704 INFO L208 MainTranslator]: Completed translation [2020-07-20 03:51:23,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:23 WrapperNode [2020-07-20 03:51:23,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 03:51:23,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 03:51:23,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 03:51:23,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 03:51:23,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:23" (1/1) ... [2020-07-20 03:51:23,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:23" (1/1) ... [2020-07-20 03:51:23,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:23" (1/1) ... [2020-07-20 03:51:23,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:23" (1/1) ... [2020-07-20 03:51:23,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:23" (1/1) ... [2020-07-20 03:51:23,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:23" (1/1) ... [2020-07-20 03:51:23,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:23" (1/1) ... [2020-07-20 03:51:23,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 03:51:23,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 03:51:23,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 03:51:23,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 03:51:23,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 03:51:23,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 03:51:23,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 03:51:23,942 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 03:51:23,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 03:51:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 03:51:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 03:51:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 03:51:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 03:51:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 03:51:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 03:51:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 03:51:25,471 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 03:51:25,471 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 03:51:25,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:51:25 BoogieIcfgContainer [2020-07-20 03:51:25,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 03:51:25,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 03:51:25,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 03:51:25,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 03:51:25,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:51:22" (1/3) ... [2020-07-20 03:51:25,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcc9681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:51:25, skipping insertion in model container [2020-07-20 03:51:25,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:23" (2/3) ... [2020-07-20 03:51:25,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcc9681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:51:25, skipping insertion in model container [2020-07-20 03:51:25,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:51:25" (3/3) ... [2020-07-20 03:51:25,495 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-07-20 03:51:25,507 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 03:51:25,518 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 03:51:25,531 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 03:51:25,558 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 03:51:25,559 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 03:51:25,559 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 03:51:25,559 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 03:51:25,559 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 03:51:25,559 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 03:51:25,559 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 03:51:25,560 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 03:51:25,585 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-20 03:51:25,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 03:51:25,594 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:25,596 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] [2020-07-20 03:51:25,596 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:25,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:25,603 INFO L82 PathProgramCache]: Analyzing trace with hash -281448013, now seen corresponding path program 1 times [2020-07-20 03:51:25,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:25,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429101553] [2020-07-20 03:51:25,614 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:51:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:26,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:26,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429101553] [2020-07-20 03:51:26,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:51:26,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:51:26,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218012797] [2020-07-20 03:51:26,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 03:51:26,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:26,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 03:51:26,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 03:51:26,083 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-07-20 03:51:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:29,246 INFO L93 Difference]: Finished difference Result 902 states and 1625 transitions. [2020-07-20 03:51:29,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 03:51:29,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-07-20 03:51:29,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:29,272 INFO L225 Difference]: With dead ends: 902 [2020-07-20 03:51:29,272 INFO L226 Difference]: Without dead ends: 564 [2020-07-20 03:51:29,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-20 03:51:29,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-07-20 03:51:29,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 376. [2020-07-20 03:51:29,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-07-20 03:51:29,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 528 transitions. [2020-07-20 03:51:29,368 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 528 transitions. Word has length 56 [2020-07-20 03:51:29,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:29,368 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 528 transitions. [2020-07-20 03:51:29,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 03:51:29,369 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 528 transitions. [2020-07-20 03:51:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-20 03:51:29,376 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:29,376 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:29,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 03:51:29,377 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:29,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:29,377 INFO L82 PathProgramCache]: Analyzing trace with hash 123351809, now seen corresponding path program 1 times [2020-07-20 03:51:29,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:29,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292575670] [2020-07-20 03:51:29,378 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:51:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:29,709 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:29,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292575670] [2020-07-20 03:51:29,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:51:29,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 03:51:29,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673285358] [2020-07-20 03:51:29,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 03:51:29,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:29,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 03:51:29,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 03:51:29,713 INFO L87 Difference]: Start difference. First operand 376 states and 528 transitions. Second operand 8 states. [2020-07-20 03:51:32,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:32,119 INFO L93 Difference]: Finished difference Result 1134 states and 1534 transitions. [2020-07-20 03:51:32,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-20 03:51:32,120 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 139 [2020-07-20 03:51:32,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:32,130 INFO L225 Difference]: With dead ends: 1134 [2020-07-20 03:51:32,131 INFO L226 Difference]: Without dead ends: 764 [2020-07-20 03:51:32,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-20 03:51:32,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-07-20 03:51:32,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 564. [2020-07-20 03:51:32,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-07-20 03:51:32,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 750 transitions. [2020-07-20 03:51:32,217 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 750 transitions. Word has length 139 [2020-07-20 03:51:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:32,218 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 750 transitions. [2020-07-20 03:51:32,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 03:51:32,218 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 750 transitions. [2020-07-20 03:51:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-20 03:51:32,223 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:32,223 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:32,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 03:51:32,224 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:32,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:32,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1050217491, now seen corresponding path program 1 times [2020-07-20 03:51:32,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:32,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837673045] [2020-07-20 03:51:32,225 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:51:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:32,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837673045] [2020-07-20 03:51:32,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894450698] [2020-07-20 03:51:32,459 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70df0cf6 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:32,594 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70df0cf6 issued 4 check-sat command(s) [2020-07-20 03:51:32,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:32,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:51:32,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:32,736 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:32,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:32,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-20 03:51:32,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801126961] [2020-07-20 03:51:32,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:51:32,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:32,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:51:32,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 03:51:32,740 INFO L87 Difference]: Start difference. First operand 564 states and 750 transitions. Second operand 3 states. [2020-07-20 03:51:33,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:33,798 INFO L93 Difference]: Finished difference Result 1674 states and 2258 transitions. [2020-07-20 03:51:33,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:51:33,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-07-20 03:51:33,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:33,813 INFO L225 Difference]: With dead ends: 1674 [2020-07-20 03:51:33,814 INFO L226 Difference]: Without dead ends: 1116 [2020-07-20 03:51:33,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 03:51:33,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-07-20 03:51:33,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2020-07-20 03:51:33,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-07-20 03:51:33,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1450 transitions. [2020-07-20 03:51:33,878 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1450 transitions. Word has length 165 [2020-07-20 03:51:33,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:33,879 INFO L479 AbstractCegarLoop]: Abstraction has 1116 states and 1450 transitions. [2020-07-20 03:51:33,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:51:33,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1450 transitions. [2020-07-20 03:51:33,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-20 03:51:33,891 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:33,891 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:34,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-20 03:51:34,107 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:34,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:34,108 INFO L82 PathProgramCache]: Analyzing trace with hash 502777661, now seen corresponding path program 1 times [2020-07-20 03:51:34,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:34,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076508294] [2020-07-20 03:51:34,110 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:51:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:34,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076508294] [2020-07-20 03:51:34,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167658323] [2020-07-20 03:51:34,347 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@371d39ec No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:34,460 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@371d39ec issued 4 check-sat command(s) [2020-07-20 03:51:34,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:34,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:51:34,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:34,530 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:34,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:34,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-20 03:51:34,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585780712] [2020-07-20 03:51:34,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:51:34,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:34,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:51:34,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 03:51:34,534 INFO L87 Difference]: Start difference. First operand 1116 states and 1450 transitions. Second operand 3 states. [2020-07-20 03:51:35,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:35,506 INFO L93 Difference]: Finished difference Result 1856 states and 2488 transitions. [2020-07-20 03:51:35,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:51:35,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-07-20 03:51:35,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:35,523 INFO L225 Difference]: With dead ends: 1856 [2020-07-20 03:51:35,523 INFO L226 Difference]: Without dead ends: 1854 [2020-07-20 03:51:35,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 03:51:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2020-07-20 03:51:35,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1304. [2020-07-20 03:51:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-07-20 03:51:35,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1769 transitions. [2020-07-20 03:51:35,589 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1769 transitions. Word has length 189 [2020-07-20 03:51:35,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:35,591 INFO L479 AbstractCegarLoop]: Abstraction has 1304 states and 1769 transitions. [2020-07-20 03:51:35,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:51:35,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1769 transitions. [2020-07-20 03:51:35,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-07-20 03:51:35,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:35,596 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 03:51:35,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:35,808 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:35,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:35,809 INFO L82 PathProgramCache]: Analyzing trace with hash 837695806, now seen corresponding path program 1 times [2020-07-20 03:51:35,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:35,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961032285] [2020-07-20 03:51:35,810 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:51:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 98 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 03:51:36,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961032285] [2020-07-20 03:51:36,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960395837] [2020-07-20 03:51:36,067 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@455709b5 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:36,192 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@455709b5 issued 4 check-sat command(s) [2020-07-20 03:51:36,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:36,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 03:51:36,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 03:51:36,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:36,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-20 03:51:36,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632624201] [2020-07-20 03:51:36,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 03:51:36,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:36,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 03:51:36,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 03:51:36,286 INFO L87 Difference]: Start difference. First operand 1304 states and 1769 transitions. Second operand 5 states. [2020-07-20 03:51:37,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:37,708 INFO L93 Difference]: Finished difference Result 3194 states and 4515 transitions. [2020-07-20 03:51:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 03:51:37,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2020-07-20 03:51:37,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:37,724 INFO L225 Difference]: With dead ends: 3194 [2020-07-20 03:51:37,725 INFO L226 Difference]: Without dead ends: 1896 [2020-07-20 03:51:37,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-20 03:51:37,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2020-07-20 03:51:37,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1870. [2020-07-20 03:51:37,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-07-20 03:51:37,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2428 transitions. [2020-07-20 03:51:37,802 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2428 transitions. Word has length 209 [2020-07-20 03:51:37,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:37,803 INFO L479 AbstractCegarLoop]: Abstraction has 1870 states and 2428 transitions. [2020-07-20 03:51:37,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 03:51:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2428 transitions. [2020-07-20 03:51:37,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-20 03:51:37,813 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:37,813 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:38,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:38,027 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:38,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:38,028 INFO L82 PathProgramCache]: Analyzing trace with hash -456723841, now seen corresponding path program 1 times [2020-07-20 03:51:38,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:38,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161662304] [2020-07-20 03:51:38,029 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:51:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 98 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 03:51:38,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161662304] [2020-07-20 03:51:38,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500496778] [2020-07-20 03:51:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4366c2b3 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:38,520 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4366c2b3 issued 4 check-sat command(s) [2020-07-20 03:51:38,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:38,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 03:51:38,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:38,591 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 03:51:38,591 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:51:38,593 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:51:38,623 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:51:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 03:51:38,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:51:38,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2020-07-20 03:51:38,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82956563] [2020-07-20 03:51:38,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 03:51:38,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:38,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 03:51:38,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-20 03:51:38,683 INFO L87 Difference]: Start difference. First operand 1870 states and 2428 transitions. Second operand 5 states. [2020-07-20 03:51:40,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:40,102 INFO L93 Difference]: Finished difference Result 4298 states and 5508 transitions. [2020-07-20 03:51:40,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 03:51:40,103 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2020-07-20 03:51:40,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:40,115 INFO L225 Difference]: With dead ends: 4298 [2020-07-20 03:51:40,115 INFO L226 Difference]: Without dead ends: 2434 [2020-07-20 03:51:40,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-07-20 03:51:40,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2020-07-20 03:51:40,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2422. [2020-07-20 03:51:40,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2422 states. [2020-07-20 03:51:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3032 transitions. [2020-07-20 03:51:40,214 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3032 transitions. Word has length 212 [2020-07-20 03:51:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:40,215 INFO L479 AbstractCegarLoop]: Abstraction has 2422 states and 3032 transitions. [2020-07-20 03:51:40,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 03:51:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3032 transitions. [2020-07-20 03:51:40,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-07-20 03:51:40,219 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:40,219 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 03:51:40,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:40,433 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:40,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:40,434 INFO L82 PathProgramCache]: Analyzing trace with hash -657639750, now seen corresponding path program 1 times [2020-07-20 03:51:40,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:40,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409453057] [2020-07-20 03:51:40,435 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:51:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:40,988 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 128 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 03:51:40,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409453057] [2020-07-20 03:51:40,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677948757] [2020-07-20 03:51:40,989 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5488fca1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:41,166 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5488fca1 issued 4 check-sat command(s) [2020-07-20 03:51:41,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:41,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 03:51:41,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:41,277 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 03:51:41,278 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:51:41,280 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:51:41,312 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:51:41,422 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:51:41,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 03:51:41,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-07-20 03:51:41,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104735059] [2020-07-20 03:51:41,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-20 03:51:41,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:41,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-20 03:51:41,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-07-20 03:51:41,431 INFO L87 Difference]: Start difference. First operand 2422 states and 3032 transitions. Second operand 14 states. [2020-07-20 03:51:45,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:45,894 INFO L93 Difference]: Finished difference Result 4945 states and 6250 transitions. [2020-07-20 03:51:45,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-20 03:51:45,895 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 223 [2020-07-20 03:51:45,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:45,908 INFO L225 Difference]: With dead ends: 4945 [2020-07-20 03:51:45,909 INFO L226 Difference]: Without dead ends: 2846 [2020-07-20 03:51:45,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=285, Invalid=975, Unknown=0, NotChecked=0, Total=1260 [2020-07-20 03:51:45,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2020-07-20 03:51:45,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2796. [2020-07-20 03:51:45,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2796 states. [2020-07-20 03:51:46,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 3224 transitions. [2020-07-20 03:51:46,001 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 3224 transitions. Word has length 223 [2020-07-20 03:51:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:46,002 INFO L479 AbstractCegarLoop]: Abstraction has 2796 states and 3224 transitions. [2020-07-20 03:51:46,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-20 03:51:46,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 3224 transitions. [2020-07-20 03:51:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-07-20 03:51:46,008 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:46,009 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:46,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-20 03:51:46,225 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:46,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:46,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1026423962, now seen corresponding path program 1 times [2020-07-20 03:51:46,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:46,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255923230] [2020-07-20 03:51:46,226 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:51:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:47,120 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 245 proven. 94 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-07-20 03:51:47,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255923230] [2020-07-20 03:51:47,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037080358] [2020-07-20 03:51:47,122 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3165803f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:47,280 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3165803f issued 4 check-sat command(s) [2020-07-20 03:51:47,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:47,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 03:51:47,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:47,418 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-07-20 03:51:47,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 03:51:47,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2020-07-20 03:51:47,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744135724] [2020-07-20 03:51:47,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 03:51:47,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:47,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 03:51:47,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-20 03:51:47,422 INFO L87 Difference]: Start difference. First operand 2796 states and 3224 transitions. Second operand 13 states. [2020-07-20 03:51:53,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:53,951 INFO L93 Difference]: Finished difference Result 6366 states and 7549 transitions. [2020-07-20 03:51:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-07-20 03:51:53,952 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 358 [2020-07-20 03:51:53,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:53,969 INFO L225 Difference]: With dead ends: 6366 [2020-07-20 03:51:53,969 INFO L226 Difference]: Without dead ends: 3942 [2020-07-20 03:51:53,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=469, Invalid=2287, Unknown=0, NotChecked=0, Total=2756 [2020-07-20 03:51:53,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2020-07-20 03:51:54,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3184. [2020-07-20 03:51:54,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3184 states. [2020-07-20 03:51:54,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 3716 transitions. [2020-07-20 03:51:54,052 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 3716 transitions. Word has length 358 [2020-07-20 03:51:54,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:54,052 INFO L479 AbstractCegarLoop]: Abstraction has 3184 states and 3716 transitions. [2020-07-20 03:51:54,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 03:51:54,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 3716 transitions. [2020-07-20 03:51:54,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-07-20 03:51:54,062 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:54,062 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 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] [2020-07-20 03:51:54,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:54,276 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:54,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:54,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1567093203, now seen corresponding path program 1 times [2020-07-20 03:51:54,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:54,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831484854] [2020-07-20 03:51:54,277 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:51:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:55,128 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 448 proven. 6 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-07-20 03:51:55,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831484854] [2020-07-20 03:51:55,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744751237] [2020-07-20 03:51:55,129 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1ab6d642 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:55,380 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1ab6d642 issued 4 check-sat command(s) [2020-07-20 03:51:55,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:51:55,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 03:51:55,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:51:55,437 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 03:51:55,437 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:51:55,438 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:51:55,463 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:51:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 449 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-07-20 03:51:55,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 03:51:55,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-07-20 03:51:55,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158348553] [2020-07-20 03:51:55,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 03:51:55,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:51:55,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 03:51:55,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-20 03:51:55,571 INFO L87 Difference]: Start difference. First operand 3184 states and 3716 transitions. Second operand 10 states. [2020-07-20 03:51:58,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:51:58,970 INFO L93 Difference]: Finished difference Result 6271 states and 7338 transitions. [2020-07-20 03:51:58,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-20 03:51:58,971 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 442 [2020-07-20 03:51:58,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:51:58,984 INFO L225 Difference]: With dead ends: 6271 [2020-07-20 03:51:58,985 INFO L226 Difference]: Without dead ends: 3054 [2020-07-20 03:51:58,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2020-07-20 03:51:58,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2020-07-20 03:51:59,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 3000. [2020-07-20 03:51:59,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3000 states. [2020-07-20 03:51:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3000 states to 3000 states and 3326 transitions. [2020-07-20 03:51:59,054 INFO L78 Accepts]: Start accepts. Automaton has 3000 states and 3326 transitions. Word has length 442 [2020-07-20 03:51:59,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:51:59,055 INFO L479 AbstractCegarLoop]: Abstraction has 3000 states and 3326 transitions. [2020-07-20 03:51:59,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 03:51:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3000 states and 3326 transitions. [2020-07-20 03:51:59,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2020-07-20 03:51:59,069 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:51:59,070 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:51:59,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:51:59,284 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:51:59,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:51:59,285 INFO L82 PathProgramCache]: Analyzing trace with hash 808508418, now seen corresponding path program 1 times [2020-07-20 03:51:59,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:51:59,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287729143] [2020-07-20 03:51:59,285 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:51:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:51:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 828 proven. 104 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-07-20 03:52:00,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287729143] [2020-07-20 03:52:00,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337919718] [2020-07-20 03:52:00,379 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c958a03 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:52:00,639 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6c958a03 issued 4 check-sat command(s) [2020-07-20 03:52:00,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:52:00,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 03:52:00,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:52:00,704 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 03:52:00,705 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:52:00,706 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-07-20 03:52:00,706 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:52:00,736 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:52:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 574 proven. 2 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2020-07-20 03:52:00,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 03:52:00,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2020-07-20 03:52:00,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135296620] [2020-07-20 03:52:00,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-20 03:52:00,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:00,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-20 03:52:00,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-07-20 03:52:00,977 INFO L87 Difference]: Start difference. First operand 3000 states and 3326 transitions. Second operand 14 states. [2020-07-20 03:52:07,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:07,872 INFO L93 Difference]: Finished difference Result 7187 states and 8077 transitions. [2020-07-20 03:52:07,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-07-20 03:52:07,874 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 548 [2020-07-20 03:52:07,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:07,888 INFO L225 Difference]: With dead ends: 7187 [2020-07-20 03:52:07,888 INFO L226 Difference]: Without dead ends: 3976 [2020-07-20 03:52:07,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 624 GetRequests, 580 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=422, Invalid=1648, Unknown=0, NotChecked=0, Total=2070 [2020-07-20 03:52:07,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3976 states. [2020-07-20 03:52:07,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3976 to 3744. [2020-07-20 03:52:07,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3744 states. [2020-07-20 03:52:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 4064 transitions. [2020-07-20 03:52:07,966 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 4064 transitions. Word has length 548 [2020-07-20 03:52:07,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:07,966 INFO L479 AbstractCegarLoop]: Abstraction has 3744 states and 4064 transitions. [2020-07-20 03:52:07,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-20 03:52:07,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 4064 transitions. [2020-07-20 03:52:07,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2020-07-20 03:52:07,976 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:07,977 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-07-20 03:52:08,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-20 03:52:08,191 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:08,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:08,192 INFO L82 PathProgramCache]: Analyzing trace with hash 263555200, now seen corresponding path program 1 times [2020-07-20 03:52:08,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:08,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305530246] [2020-07-20 03:52:08,192 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:52:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:09,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 650 proven. 221 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-07-20 03:52:09,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305530246] [2020-07-20 03:52:09,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702060462] [2020-07-20 03:52:09,362 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@14e24a3e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:52:09,663 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@14e24a3e issued 4 check-sat command(s) [2020-07-20 03:52:09,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:52:09,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:52:09,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:52:09,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 1504 trivial. 0 not checked. [2020-07-20 03:52:09,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:52:09,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2020-07-20 03:52:09,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170667908] [2020-07-20 03:52:09,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:52:09,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:09,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:52:09,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-20 03:52:09,939 INFO L87 Difference]: Start difference. First operand 3744 states and 4064 transitions. Second operand 3 states. [2020-07-20 03:52:10,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:10,795 INFO L93 Difference]: Finished difference Result 5212 states and 5797 transitions. [2020-07-20 03:52:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:52:10,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 777 [2020-07-20 03:52:10,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:10,827 INFO L225 Difference]: With dead ends: 5212 [2020-07-20 03:52:10,828 INFO L226 Difference]: Without dead ends: 5210 [2020-07-20 03:52:10,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 791 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-20 03:52:10,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2020-07-20 03:52:10,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 3930. [2020-07-20 03:52:10,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3930 states. [2020-07-20 03:52:10,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3930 states to 3930 states and 4293 transitions. [2020-07-20 03:52:10,925 INFO L78 Accepts]: Start accepts. Automaton has 3930 states and 4293 transitions. Word has length 777 [2020-07-20 03:52:10,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:10,927 INFO L479 AbstractCegarLoop]: Abstraction has 3930 states and 4293 transitions. [2020-07-20 03:52:10,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:52:10,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3930 states and 4293 transitions. [2020-07-20 03:52:10,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2020-07-20 03:52:10,937 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:10,939 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-07-20 03:52:11,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:52:11,153 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:11,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:11,154 INFO L82 PathProgramCache]: Analyzing trace with hash -398342493, now seen corresponding path program 1 times [2020-07-20 03:52:11,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:11,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660250211] [2020-07-20 03:52:11,154 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:52:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:12,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1828 backedges. 650 proven. 224 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2020-07-20 03:52:12,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660250211] [2020-07-20 03:52:12,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804446966] [2020-07-20 03:52:12,304 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5a18d526 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:52:12,607 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5a18d526 issued 4 check-sat command(s) [2020-07-20 03:52:12,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:52:12,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 03:52:12,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:52:12,676 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 03:52:12,677 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:52:12,678 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:52:12,700 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 03:52:13,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1828 backedges. 1321 proven. 2 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2020-07-20 03:52:13,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 03:52:13,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2020-07-20 03:52:13,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597766682] [2020-07-20 03:52:13,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 03:52:13,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:13,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 03:52:13,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-07-20 03:52:13,481 INFO L87 Difference]: Start difference. First operand 3930 states and 4293 transitions. Second operand 12 states. [2020-07-20 03:52:17,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:17,397 INFO L93 Difference]: Finished difference Result 8598 states and 9391 transitions. [2020-07-20 03:52:17,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-20 03:52:17,398 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 780 [2020-07-20 03:52:17,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:17,409 INFO L225 Difference]: With dead ends: 8598 [2020-07-20 03:52:17,409 INFO L226 Difference]: Without dead ends: 4856 [2020-07-20 03:52:17,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 832 GetRequests, 803 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2020-07-20 03:52:17,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2020-07-20 03:52:17,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 3750. [2020-07-20 03:52:17,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3750 states. [2020-07-20 03:52:17,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 4101 transitions. [2020-07-20 03:52:17,492 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 4101 transitions. Word has length 780 [2020-07-20 03:52:17,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:17,493 INFO L479 AbstractCegarLoop]: Abstraction has 3750 states and 4101 transitions. [2020-07-20 03:52:17,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 03:52:17,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 4101 transitions. [2020-07-20 03:52:17,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2020-07-20 03:52:17,504 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:17,504 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 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] [2020-07-20 03:52:17,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:52:17,719 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:17,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:17,720 INFO L82 PathProgramCache]: Analyzing trace with hash 882317274, now seen corresponding path program 1 times [2020-07-20 03:52:17,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:17,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195348508] [2020-07-20 03:52:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:52:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:18,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1842 backedges. 657 proven. 224 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2020-07-20 03:52:18,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195348508] [2020-07-20 03:52:18,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334051224] [2020-07-20 03:52:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@604a0388 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:52:19,151 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@604a0388 issued 4 check-sat command(s) [2020-07-20 03:52:19,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:52:19,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 03:52:19,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:52:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1842 backedges. 719 proven. 2 refuted. 0 times theorem prover too weak. 1121 trivial. 0 not checked. [2020-07-20 03:52:19,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 03:52:19,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2020-07-20 03:52:19,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760595452] [2020-07-20 03:52:19,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 03:52:19,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:19,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 03:52:19,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-20 03:52:19,456 INFO L87 Difference]: Start difference. First operand 3750 states and 4101 transitions. Second operand 13 states. [2020-07-20 03:52:20,101 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-07-20 03:52:21,566 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-07-20 03:52:25,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:25,704 INFO L93 Difference]: Finished difference Result 9166 states and 10213 transitions. [2020-07-20 03:52:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-20 03:52:25,707 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 787 [2020-07-20 03:52:25,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:25,719 INFO L225 Difference]: With dead ends: 9166 [2020-07-20 03:52:25,719 INFO L226 Difference]: Without dead ends: 5606 [2020-07-20 03:52:25,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=291, Invalid=1115, Unknown=0, NotChecked=0, Total=1406 [2020-07-20 03:52:25,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5606 states. [2020-07-20 03:52:25,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5606 to 5232. [2020-07-20 03:52:25,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5232 states. [2020-07-20 03:52:25,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5232 states to 5232 states and 5723 transitions. [2020-07-20 03:52:25,821 INFO L78 Accepts]: Start accepts. Automaton has 5232 states and 5723 transitions. Word has length 787 [2020-07-20 03:52:25,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:25,823 INFO L479 AbstractCegarLoop]: Abstraction has 5232 states and 5723 transitions. [2020-07-20 03:52:25,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 03:52:25,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5232 states and 5723 transitions. [2020-07-20 03:52:25,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2020-07-20 03:52:25,838 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:25,839 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:52:26,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-07-20 03:52:26,055 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:26,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:26,055 INFO L82 PathProgramCache]: Analyzing trace with hash -961571631, now seen corresponding path program 1 times [2020-07-20 03:52:26,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:26,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292554051] [2020-07-20 03:52:26,056 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:52:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:26,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1883 backedges. 808 proven. 85 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2020-07-20 03:52:26,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292554051] [2020-07-20 03:52:26,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936100908] [2020-07-20 03:52:26,763 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6bba2148 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:52:27,078 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6bba2148 issued 4 check-sat command(s) [2020-07-20 03:52:27,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:52:27,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 03:52:27,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:52:27,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1883 backedges. 1176 proven. 2 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2020-07-20 03:52:27,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 03:52:27,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2020-07-20 03:52:27,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646792676] [2020-07-20 03:52:27,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 03:52:27,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:27,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 03:52:27,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 03:52:27,469 INFO L87 Difference]: Start difference. First operand 5232 states and 5723 transitions. Second operand 8 states. [2020-07-20 03:52:29,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:29,322 INFO L93 Difference]: Finished difference Result 12118 states and 13411 transitions. [2020-07-20 03:52:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 03:52:29,323 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 816 [2020-07-20 03:52:29,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:29,342 INFO L225 Difference]: With dead ends: 12118 [2020-07-20 03:52:29,342 INFO L226 Difference]: Without dead ends: 7076 [2020-07-20 03:52:29,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 835 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-07-20 03:52:29,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7076 states. [2020-07-20 03:52:29,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7076 to 6338. [2020-07-20 03:52:29,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6338 states. [2020-07-20 03:52:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6338 states to 6338 states and 7007 transitions. [2020-07-20 03:52:29,471 INFO L78 Accepts]: Start accepts. Automaton has 6338 states and 7007 transitions. Word has length 816 [2020-07-20 03:52:29,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:29,472 INFO L479 AbstractCegarLoop]: Abstraction has 6338 states and 7007 transitions. [2020-07-20 03:52:29,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 03:52:29,472 INFO L276 IsEmpty]: Start isEmpty. Operand 6338 states and 7007 transitions. [2020-07-20 03:52:29,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2020-07-20 03:52:29,485 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:29,486 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 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] [2020-07-20 03:52:29,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-07-20 03:52:29,693 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:29,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:29,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1789439753, now seen corresponding path program 1 times [2020-07-20 03:52:29,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:29,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296190571] [2020-07-20 03:52:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:52:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:30,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2392 backedges. 351 proven. 28 refuted. 0 times theorem prover too weak. 2013 trivial. 0 not checked. [2020-07-20 03:52:30,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296190571] [2020-07-20 03:52:30,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116873062] [2020-07-20 03:52:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@69605d01 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:52:30,803 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@69605d01 issued 4 check-sat command(s) [2020-07-20 03:52:30,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:52:30,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:52:30,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:52:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2392 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 2031 trivial. 0 not checked. [2020-07-20 03:52:31,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:52:31,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2020-07-20 03:52:31,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127242483] [2020-07-20 03:52:31,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:52:31,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:31,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:52:31,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 03:52:31,192 INFO L87 Difference]: Start difference. First operand 6338 states and 7007 transitions. Second operand 3 states. [2020-07-20 03:52:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:32,053 INFO L93 Difference]: Finished difference Result 7432 states and 8190 transitions. [2020-07-20 03:52:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:52:32,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 871 [2020-07-20 03:52:32,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:32,068 INFO L225 Difference]: With dead ends: 7432 [2020-07-20 03:52:32,068 INFO L226 Difference]: Without dead ends: 7430 [2020-07-20 03:52:32,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 893 GetRequests, 888 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 03:52:32,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7430 states. [2020-07-20 03:52:32,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7430 to 6156. [2020-07-20 03:52:32,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6156 states. [2020-07-20 03:52:32,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6156 states to 6156 states and 6793 transitions. [2020-07-20 03:52:32,181 INFO L78 Accepts]: Start accepts. Automaton has 6156 states and 6793 transitions. Word has length 871 [2020-07-20 03:52:32,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:32,182 INFO L479 AbstractCegarLoop]: Abstraction has 6156 states and 6793 transitions. [2020-07-20 03:52:32,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:52:32,183 INFO L276 IsEmpty]: Start isEmpty. Operand 6156 states and 6793 transitions. [2020-07-20 03:52:32,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2020-07-20 03:52:32,198 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:32,198 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 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] [2020-07-20 03:52:32,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-07-20 03:52:32,414 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:32,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:32,415 INFO L82 PathProgramCache]: Analyzing trace with hash -134669819, now seen corresponding path program 1 times [2020-07-20 03:52:32,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:32,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302347880] [2020-07-20 03:52:32,416 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:52:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:33,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2482 backedges. 354 proven. 7 refuted. 0 times theorem prover too weak. 2121 trivial. 0 not checked. [2020-07-20 03:52:33,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302347880] [2020-07-20 03:52:33,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912308830] [2020-07-20 03:52:33,321 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4e92b25f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:52:33,625 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4e92b25f issued 4 check-sat command(s) [2020-07-20 03:52:33,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:52:33,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:52:33,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:52:33,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2482 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 2121 trivial. 0 not checked. [2020-07-20 03:52:33,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:52:33,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2020-07-20 03:52:33,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704603677] [2020-07-20 03:52:33,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:52:33,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:33,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:52:33,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 03:52:33,995 INFO L87 Difference]: Start difference. First operand 6156 states and 6793 transitions. Second operand 3 states. [2020-07-20 03:52:34,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:34,946 INFO L93 Difference]: Finished difference Result 13216 states and 14600 transitions. [2020-07-20 03:52:34,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:52:34,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 889 [2020-07-20 03:52:34,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:34,978 INFO L225 Difference]: With dead ends: 13216 [2020-07-20 03:52:34,978 INFO L226 Difference]: Without dead ends: 7250 [2020-07-20 03:52:34,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 909 GetRequests, 906 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 03:52:34,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7250 states. [2020-07-20 03:52:35,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7250 to 6340. [2020-07-20 03:52:35,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6340 states. [2020-07-20 03:52:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6340 states to 6340 states and 6993 transitions. [2020-07-20 03:52:35,117 INFO L78 Accepts]: Start accepts. Automaton has 6340 states and 6993 transitions. Word has length 889 [2020-07-20 03:52:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:35,118 INFO L479 AbstractCegarLoop]: Abstraction has 6340 states and 6993 transitions. [2020-07-20 03:52:35,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:52:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 6340 states and 6993 transitions. [2020-07-20 03:52:35,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1034 [2020-07-20 03:52:35,141 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:52:35,141 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:52:35,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:52:35,357 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:52:35,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:52:35,358 INFO L82 PathProgramCache]: Analyzing trace with hash 898961330, now seen corresponding path program 1 times [2020-07-20 03:52:35,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:52:35,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914433822] [2020-07-20 03:52:35,359 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c085aee [2020-07-20 03:52:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:52:36,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3202 backedges. 1363 proven. 246 refuted. 0 times theorem prover too weak. 1593 trivial. 0 not checked. [2020-07-20 03:52:36,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914433822] [2020-07-20 03:52:36,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462515400] [2020-07-20 03:52:36,722 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@753a91b0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:52:37,096 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@753a91b0 issued 4 check-sat command(s) [2020-07-20 03:52:37,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:52:37,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:52:37,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:52:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3202 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 2789 trivial. 0 not checked. [2020-07-20 03:52:37,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:52:37,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2020-07-20 03:52:37,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799613200] [2020-07-20 03:52:37,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:52:37,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:52:37,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:52:37,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-20 03:52:37,677 INFO L87 Difference]: Start difference. First operand 6340 states and 6993 transitions. Second operand 3 states. [2020-07-20 03:52:38,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:52:38,577 INFO L93 Difference]: Finished difference Result 12854 states and 14179 transitions. [2020-07-20 03:52:38,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:52:38,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1033 [2020-07-20 03:52:38,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:52:38,582 INFO L225 Difference]: With dead ends: 12854 [2020-07-20 03:52:38,582 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 03:52:38,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1057 GetRequests, 1049 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-20 03:52:38,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 03:52:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 03:52:38,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 03:52:38,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 03:52:38,600 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1033 [2020-07-20 03:52:38,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:52:38,600 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 03:52:38,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:52:38,601 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 03:52:38,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 03:52:38,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-07-20 03:52:38,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 03:52:39,978 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 270 [2020-07-20 03:52:40,338 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 270 [2020-07-20 03:52:40,509 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 30 [2020-07-20 03:52:42,858 WARN L193 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 387 DAG size of output: 53 [2020-07-20 03:52:44,388 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 283 DAG size of output: 51 [2020-07-20 03:52:45,859 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 283 DAG size of output: 51 [2020-07-20 03:52:45,864 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 03:52:45,864 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~a24~0 |old(~a24~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-07-20 03:52:45,864 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 03:52:45,864 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-20 03:52:45,865 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-20 03:52:45,865 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,865 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,865 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,865 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-20 03:52:45,865 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 03:52:45,866 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 03:52:45,866 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 03:52:45,866 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-20 03:52:45,866 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-20 03:52:45,866 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-20 03:52:45,867 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-20 03:52:45,867 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,867 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,867 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,867 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-20 03:52:45,867 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-20 03:52:45,867 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 03:52:45,868 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 03:52:45,868 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 03:52:45,868 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-20 03:52:45,868 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-20 03:52:45,868 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-20 03:52:45,868 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,868 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,868 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,869 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-20 03:52:45,869 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 03:52:45,869 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 03:52:45,869 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 03:52:45,869 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-20 03:52:45,869 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-20 03:52:45,869 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-20 03:52:45,869 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-20 03:52:45,869 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-20 03:52:45,870 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,870 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,870 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,870 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-20 03:52:45,870 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 03:52:45,870 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 03:52:45,870 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 03:52:45,870 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-20 03:52:45,870 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-20 03:52:45,871 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-20 03:52:45,871 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,871 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,871 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,871 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-20 03:52:45,871 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 03:52:45,871 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 03:52:45,871 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 03:52:45,872 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-20 03:52:45,872 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-20 03:52:45,872 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-20 03:52:45,872 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-20 03:52:45,872 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-20 03:52:45,872 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,872 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,872 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,872 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,873 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-20 03:52:45,873 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 03:52:45,873 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 03:52:45,873 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 03:52:45,873 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-20 03:52:45,873 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-20 03:52:45,873 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-20 03:52:45,873 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-20 03:52:45,874 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,874 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,874 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,874 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 03:52:45,874 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 03:52:45,874 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 03:52:45,874 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-20 03:52:45,874 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-20 03:52:45,874 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-20 03:52:45,874 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-20 03:52:45,875 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-20 03:52:45,875 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,875 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,875 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,875 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-20 03:52:45,875 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-20 03:52:45,875 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 03:52:45,876 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 03:52:45,876 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 03:52:45,876 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-20 03:52:45,876 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse5 (= ~a12~0 |old(~a12~0)|)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse7 (= ~a15~0 |old(~a15~0)|)) (.cse4 (= 1 |old(~a24~0)|))) (let ((.cse1 (= 5 |old(~a15~0)|)) (.cse0 (not .cse4)) (.cse2 (and .cse5 (= 1 ~a24~0) .cse6 .cse7)) (.cse3 (not (<= |old(~a15~0)| 5)))) (and (or .cse0 .cse1 (not (<= |old(~a12~0)| 76)) .cse2) (or (and (or .cse0 (not (<= 7 |old(~a15~0)|))) (or .cse0 .cse1 (not (<= |old(~a21~0)| 9)))) .cse2) (or .cse0 .cse3 .cse2 (and (= 7 |old(~a21~0)|) (not (< 0 (+ |old(~a12~0)| 43))))) (or .cse4 (and .cse5 (= ~a24~0 |old(~a24~0)|) .cse6 .cse7) (not (<= (+ |old(~a12~0)| 49) 0)) .cse3 (not (<= |old(~a21~0)| 7)))))) [2020-07-20 03:52:45,876 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-20 03:52:45,876 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-20 03:52:45,876 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,877 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,877 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,877 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 03:52:45,877 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 03:52:45,877 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 03:52:45,877 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-20 03:52:45,877 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-20 03:52:45,877 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-20 03:52:45,877 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-20 03:52:45,877 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-20 03:52:45,878 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,878 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,878 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,878 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-20 03:52:45,878 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-20 03:52:45,878 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 03:52:45,878 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 03:52:45,878 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 03:52:45,879 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-20 03:52:45,879 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-20 03:52:45,879 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-20 03:52:45,879 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,879 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,879 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,879 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-20 03:52:45,879 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 03:52:45,880 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 03:52:45,880 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 03:52:45,880 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-20 03:52:45,880 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-20 03:52:45,880 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-20 03:52:45,880 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-20 03:52:45,880 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,880 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,880 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,880 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-20 03:52:45,881 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 03:52:45,881 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 03:52:45,881 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 03:52:45,881 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-20 03:52:45,881 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-20 03:52:45,881 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-20 03:52:45,881 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-20 03:52:45,881 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,881 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,882 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-20 03:52:45,882 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 03:52:45,882 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 03:52:45,882 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-20 03:52:45,882 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-20 03:52:45,882 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-20 03:52:45,882 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-20 03:52:45,882 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-20 03:52:45,883 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-20 03:52:45,883 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,883 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,883 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-20 03:52:45,883 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 03:52:45,883 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 03:52:45,883 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-20 03:52:45,883 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-20 03:52:45,883 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-20 03:52:45,883 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,884 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,884 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-20 03:52:45,884 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-20 03:52:45,884 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 03:52:45,884 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 03:52:45,884 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-20 03:52:45,884 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-20 03:52:45,884 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-20 03:52:45,884 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-20 03:52:45,885 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,885 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,885 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-20 03:52:45,885 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-20 03:52:45,885 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 03:52:45,885 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 03:52:45,885 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-20 03:52:45,885 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-20 03:52:45,885 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-20 03:52:45,885 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,886 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,886 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,886 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-20 03:52:45,886 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-20 03:52:45,886 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 03:52:45,886 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 03:52:45,886 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-20 03:52:45,886 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-20 03:52:45,886 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,886 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,887 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 03:52:45,887 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,887 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-20 03:52:45,887 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-20 03:52:45,887 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-20 03:52:45,887 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 03:52:45,887 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 03:52:45,887 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 03:52:45,887 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-20 03:52:45,888 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-20 03:52:45,888 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-20 03:52:45,888 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-20 03:52:45,888 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,888 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,888 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,888 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-20 03:52:45,888 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 03:52:45,888 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 03:52:45,888 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 03:52:45,889 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-20 03:52:45,889 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-20 03:52:45,889 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-20 03:52:45,889 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-20 03:52:45,889 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,889 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,889 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,889 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-20 03:52:45,889 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-20 03:52:45,889 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 03:52:45,890 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 03:52:45,890 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 03:52:45,890 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-20 03:52:45,890 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-20 03:52:45,890 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-20 03:52:45,890 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,890 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,890 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,890 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-20 03:52:45,891 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 03:52:45,891 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 03:52:45,891 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 03:52:45,891 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-20 03:52:45,891 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-20 03:52:45,891 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-20 03:52:45,891 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-20 03:52:45,891 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-20 03:52:45,891 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,891 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,892 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 03:52:45,892 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-20 03:52:45,892 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 03:52:45,892 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 03:52:45,892 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 03:52:45,892 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-20 03:52:45,892 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 03:52:45,892 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (<= ~a15~0 8) (= 1 ~a24~0) (<= 7 ~a21~0) (<= ~a21~0 7) (<= 8 ~a15~0)) [2020-07-20 03:52:45,892 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 03:52:45,893 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 03:52:45,893 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (and (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0) (= 1 ~a24~0) (= ~a15~0 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= |old(~a15~0)| 8)) (not (<= 8 |old(~a15~0)|))) [2020-07-20 03:52:45,893 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-20 03:52:45,893 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse1 (<= ~a15~0 5)) (.cse2 (not (= 5 ~a15~0))) (.cse0 (= 1 ~a24~0))) (or (and (<= 7 ~a15~0) .cse0) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse1 .cse0 (or (not (= 7 ~a21~0)) (< 0 (+ ~a12~0 43)))) (and (<= ~a12~0 76) .cse2 .cse0) (not (<= |old(~a15~0)| 8)) (and (<= (+ ~a12~0 49) 0) .cse1 (not .cse0) (<= ~a21~0 7)) (and .cse2 .cse0 (<= ~a21~0 9)) (not (<= 8 |old(~a15~0)|)))) [2020-07-20 03:52:45,893 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-20 03:52:45,893 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-20 03:52:45,893 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse1 (<= ~a15~0 5)) (.cse2 (not (= 5 ~a15~0))) (.cse0 (= 1 ~a24~0))) (or (and (<= 7 ~a15~0) .cse0) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse1 .cse0 (or (not (= 7 ~a21~0)) (< 0 (+ ~a12~0 43)))) (and (<= ~a12~0 76) .cse2 .cse0) (not (<= |old(~a15~0)| 8)) (and (<= (+ ~a12~0 49) 0) .cse1 (not .cse0) (<= ~a21~0 7)) (and .cse2 .cse0 (<= ~a21~0 9)) (not (<= 8 |old(~a15~0)|)))) [2020-07-20 03:52:45,894 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-20 03:52:45,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 03:52:45 BoogieIcfgContainer [2020-07-20 03:52:45,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 03:52:45,933 INFO L168 Benchmark]: Toolchain (without parser) took 83134.67 ms. Allocated memory was 136.8 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 100.1 MB in the beginning and 662.8 MB in the end (delta: -562.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2020-07-20 03:52:45,934 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 03:52:45,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 905.03 ms. Allocated memory was 136.8 MB in the beginning and 206.0 MB in the end (delta: 69.2 MB). Free memory was 99.7 MB in the beginning and 169.4 MB in the end (delta: -69.8 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. [2020-07-20 03:52:45,936 INFO L168 Benchmark]: Boogie Preprocessor took 137.25 ms. Allocated memory is still 206.0 MB. Free memory was 169.4 MB in the beginning and 163.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2020-07-20 03:52:45,937 INFO L168 Benchmark]: RCFGBuilder took 1640.03 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 163.5 MB in the beginning and 157.7 MB in the end (delta: 5.8 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-07-20 03:52:45,940 INFO L168 Benchmark]: TraceAbstraction took 80445.83 ms. Allocated memory was 235.9 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 157.7 MB in the beginning and 662.8 MB in the end (delta: -505.1 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2020-07-20 03:52:45,946 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 905.03 ms. Allocated memory was 136.8 MB in the beginning and 206.0 MB in the end (delta: 69.2 MB). Free memory was 99.7 MB in the beginning and 169.4 MB in the end (delta: -69.8 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.25 ms. Allocated memory is still 206.0 MB. Free memory was 169.4 MB in the beginning and 163.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1640.03 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 163.5 MB in the beginning and 157.7 MB in the end (delta: 5.8 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 80445.83 ms. Allocated memory was 235.9 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 157.7 MB in the beginning and 662.8 MB in the end (delta: -505.1 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((((((((7 <= a15 && 1 == a24) || !(7 == \old(a21))) || !(1 == \old(a24))) || !(\old(a12) + 49 <= 0)) || ((a15 <= 5 && 1 == a24) && (!(7 == a21) || 0 < a12 + 43))) || ((a12 <= 76 && !(5 == a15)) && 1 == a24)) || !(\old(a15) <= 8)) || (((a12 + 49 <= 0 && a15 <= 5) && !(1 == a24)) && a21 <= 7)) || ((!(5 == a15) && 1 == a24) && a21 <= 9)) || !(8 <= \old(a15)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 73.2s, OverallIterations: 17, TraceHistogramMax: 9, AutomataDifference: 47.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 822 SDtfs, 15198 SDslu, 833 SDs, 0 SdLazy, 24877 SolverSat, 3528 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8840 GetRequests, 8535 SyntacticMatches, 2 SemanticMatches, 303 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2323 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6340occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 7752 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 258 PreInvPairs, 340 NumberOfFragments, 384 HoareAnnotationTreeSize, 258 FomulaSimplifications, 149926 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 53488 FormulaSimplificationTreeSizeReductionInter, 5.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 10.6s InterpolantComputationTime, 16793 NumberOfCodeBlocks, 16793 NumberOfCodeBlocksAsserted, 77 NumberOfCheckSat, 16761 ConstructedInterpolants, 0 QuantifiedInterpolants, 23340243 SizeOfPredicates, 16 NumberOfNonLiveVariables, 12370 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 32 InterpolantComputations, 10 PerfectInterpolantSequences, 35245/36685 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...