/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 19:07:12,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 19:07:12,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 19:07:12,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 19:07:12,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 19:07:12,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 19:07:12,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 19:07:12,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 19:07:12,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 19:07:12,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 19:07:12,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 19:07:12,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 19:07:12,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 19:07:12,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 19:07:12,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 19:07:12,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 19:07:12,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 19:07:12,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 19:07:12,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 19:07:12,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 19:07:12,073 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 [2019-11-06 19:07:12,093 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 19:07:12,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 19:07:12,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 19:07:12,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 19:07:12,096 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 19:07:12,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 19:07:12,096 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 19:07:12,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 19:07:12,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 19:07:12,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 19:07:12,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 19:07:12,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 19:07:12,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 19:07:12,099 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 19:07:12,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 19:07:12,099 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 19:07:12,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 19:07:12,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 19:07:12,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 19:07:12,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 19:07:12,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 19:07:12,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 19:07:12,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 19:07:12,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 19:07:12,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 19:07:12,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 19:07:12,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 19:07:12,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 19:07:12,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 19:07:12,381 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 19:07:12,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 19:07:12,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 19:07:12,399 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 19:07:12,399 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 19:07:12,400 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56.c [2019-11-06 19:07:12,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb889369b/d6462cc7f6924d30b5a6e617145f3065/FLAG019c71e66 [2019-11-06 19:07:13,020 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 19:07:13,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label56.c [2019-11-06 19:07:13,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb889369b/d6462cc7f6924d30b5a6e617145f3065/FLAG019c71e66 [2019-11-06 19:07:13,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb889369b/d6462cc7f6924d30b5a6e617145f3065 [2019-11-06 19:07:13,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 19:07:13,369 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 19:07:13,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 19:07:13,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 19:07:13,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 19:07:13,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:07:13" (1/1) ... [2019-11-06 19:07:13,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ea6363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:13, skipping insertion in model container [2019-11-06 19:07:13,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:07:13" (1/1) ... [2019-11-06 19:07:13,387 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 19:07:13,447 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 19:07:13,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 19:07:13,988 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 19:07:14,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 19:07:14,110 INFO L192 MainTranslator]: Completed translation [2019-11-06 19:07:14,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:14 WrapperNode [2019-11-06 19:07:14,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 19:07:14,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 19:07:14,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 19:07:14,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 19:07:14,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:14" (1/1) ... [2019-11-06 19:07:14,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:14" (1/1) ... [2019-11-06 19:07:14,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:14" (1/1) ... [2019-11-06 19:07:14,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:14" (1/1) ... [2019-11-06 19:07:14,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:14" (1/1) ... [2019-11-06 19:07:14,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:14" (1/1) ... [2019-11-06 19:07:14,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:14" (1/1) ... [2019-11-06 19:07:14,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 19:07:14,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 19:07:14,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 19:07:14,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 19:07:14,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:14" (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 [2019-11-06 19:07:14,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 19:07:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 19:07:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-06 19:07:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 19:07:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-06 19:07:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 19:07:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 19:07:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 19:07:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 19:07:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 19:07:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 19:07:15,466 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 19:07:15,466 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 19:07:15,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:07:15 BoogieIcfgContainer [2019-11-06 19:07:15,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 19:07:15,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 19:07:15,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 19:07:15,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 19:07:15,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:07:13" (1/3) ... [2019-11-06 19:07:15,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ad41dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:07:15, skipping insertion in model container [2019-11-06 19:07:15,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:14" (2/3) ... [2019-11-06 19:07:15,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ad41dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:07:15, skipping insertion in model container [2019-11-06 19:07:15,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:07:15" (3/3) ... [2019-11-06 19:07:15,478 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label56.c [2019-11-06 19:07:15,489 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 19:07:15,499 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 19:07:15,514 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 19:07:15,547 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 19:07:15,547 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 19:07:15,548 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 19:07:15,548 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 19:07:15,548 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 19:07:15,549 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 19:07:15,549 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 19:07:15,549 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 19:07:15,576 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2019-11-06 19:07:15,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-06 19:07:15,585 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:07:15,587 INFO L410 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] [2019-11-06 19:07:15,589 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:07:15,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:07:15,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1758937742, now seen corresponding path program 1 times [2019-11-06 19:07:15,607 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:07:15,608 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929423282] [2019-11-06 19:07:15,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:07:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:15,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:07:15,937 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929423282] [2019-11-06 19:07:15,938 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 19:07:15,939 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 19:07:15,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491144444] [2019-11-06 19:07:15,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 19:07:15,946 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:07:15,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 19:07:15,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 19:07:15,963 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2019-11-06 19:07:17,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:07:17,979 INFO L93 Difference]: Finished difference Result 730 states and 1300 transitions. [2019-11-06 19:07:17,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 19:07:17,981 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-06 19:07:17,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:07:17,999 INFO L225 Difference]: With dead ends: 730 [2019-11-06 19:07:17,999 INFO L226 Difference]: Without dead ends: 447 [2019-11-06 19:07:18,008 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-06 19:07:18,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-11-06 19:07:18,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 443. [2019-11-06 19:07:18,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-11-06 19:07:18,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 610 transitions. [2019-11-06 19:07:18,089 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 610 transitions. Word has length 29 [2019-11-06 19:07:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:07:18,090 INFO L462 AbstractCegarLoop]: Abstraction has 443 states and 610 transitions. [2019-11-06 19:07:18,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 19:07:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 610 transitions. [2019-11-06 19:07:18,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-11-06 19:07:18,098 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:07:18,099 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 19:07:18,099 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:07:18,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:07:18,099 INFO L82 PathProgramCache]: Analyzing trace with hash 30670753, now seen corresponding path program 1 times [2019-11-06 19:07:18,100 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:07:18,100 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243354812] [2019-11-06 19:07:18,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:07:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:18,387 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 19:07:18,388 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243354812] [2019-11-06 19:07:18,388 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641927162] [2019-11-06 19:07:18,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -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 [2019-11-06 19:07:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:18,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 19:07:18,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:07:18,542 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:07:18,543 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 19:07:18,543 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2019-11-06 19:07:18,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745514403] [2019-11-06 19:07:18,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 19:07:18,546 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:07:18,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 19:07:18,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 19:07:18,547 INFO L87 Difference]: Start difference. First operand 443 states and 610 transitions. Second operand 3 states. [2019-11-06 19:07:19,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:07:19,247 INFO L93 Difference]: Finished difference Result 880 states and 1232 transitions. [2019-11-06 19:07:19,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 19:07:19,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2019-11-06 19:07:19,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:07:19,257 INFO L225 Difference]: With dead ends: 880 [2019-11-06 19:07:19,257 INFO L226 Difference]: Without dead ends: 878 [2019-11-06 19:07:19,259 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 19:07:19,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2019-11-06 19:07:19,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 733. [2019-11-06 19:07:19,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2019-11-06 19:07:19,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1056 transitions. [2019-11-06 19:07:19,319 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1056 transitions. Word has length 116 [2019-11-06 19:07:19,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:07:19,320 INFO L462 AbstractCegarLoop]: Abstraction has 733 states and 1056 transitions. [2019-11-06 19:07:19,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 19:07:19,320 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1056 transitions. [2019-11-06 19:07:19,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-11-06 19:07:19,333 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:07:19,334 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:07:19,541 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:07:19,541 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:07:19,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:07:19,542 INFO L82 PathProgramCache]: Analyzing trace with hash 662877061, now seen corresponding path program 1 times [2019-11-06 19:07:19,542 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:07:19,542 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532796663] [2019-11-06 19:07:19,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:07:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-11-06 19:07:19,892 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532796663] [2019-11-06 19:07:19,892 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620314834] [2019-11-06 19:07:19,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -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 [2019-11-06 19:07:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:20,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 19:07:20,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:07:20,070 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-11-06 19:07:20,071 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 19:07:20,071 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2019-11-06 19:07:20,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647590410] [2019-11-06 19:07:20,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 19:07:20,072 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:07:20,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 19:07:20,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 19:07:20,073 INFO L87 Difference]: Start difference. First operand 733 states and 1056 transitions. Second operand 3 states. [2019-11-06 19:07:20,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:07:20,839 INFO L93 Difference]: Finished difference Result 2185 states and 3220 transitions. [2019-11-06 19:07:20,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 19:07:20,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2019-11-06 19:07:20,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:07:20,849 INFO L225 Difference]: With dead ends: 2185 [2019-11-06 19:07:20,849 INFO L226 Difference]: Without dead ends: 1458 [2019-11-06 19:07:20,852 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 211 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 19:07:20,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2019-11-06 19:07:20,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1458. [2019-11-06 19:07:20,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1458 states. [2019-11-06 19:07:20,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1981 transitions. [2019-11-06 19:07:20,906 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1981 transitions. Word has length 206 [2019-11-06 19:07:20,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:07:20,906 INFO L462 AbstractCegarLoop]: Abstraction has 1458 states and 1981 transitions. [2019-11-06 19:07:20,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 19:07:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1981 transitions. [2019-11-06 19:07:20,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-11-06 19:07:20,914 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:07:20,914 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:07:21,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:07:21,118 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:07:21,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:07:21,118 INFO L82 PathProgramCache]: Analyzing trace with hash 659419793, now seen corresponding path program 1 times [2019-11-06 19:07:21,118 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:07:21,119 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783999804] [2019-11-06 19:07:21,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:07:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 19:07:21,567 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783999804] [2019-11-06 19:07:21,567 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244052817] [2019-11-06 19:07:21,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -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 [2019-11-06 19:07:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:21,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 19:07:21,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:07:21,752 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:07:21,752 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 19:07:21,752 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2019-11-06 19:07:21,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435838407] [2019-11-06 19:07:21,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 19:07:21,754 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:07:21,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 19:07:21,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-06 19:07:21,755 INFO L87 Difference]: Start difference. First operand 1458 states and 1981 transitions. Second operand 11 states. [2019-11-06 19:07:25,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:07:25,206 INFO L93 Difference]: Finished difference Result 4283 states and 6022 transitions. [2019-11-06 19:07:25,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-06 19:07:25,207 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 224 [2019-11-06 19:07:25,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:07:25,225 INFO L225 Difference]: With dead ends: 4283 [2019-11-06 19:07:25,225 INFO L226 Difference]: Without dead ends: 2831 [2019-11-06 19:07:25,230 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2019-11-06 19:07:25,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2019-11-06 19:07:25,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 1788. [2019-11-06 19:07:25,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1788 states. [2019-11-06 19:07:25,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2137 transitions. [2019-11-06 19:07:25,324 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2137 transitions. Word has length 224 [2019-11-06 19:07:25,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:07:25,325 INFO L462 AbstractCegarLoop]: Abstraction has 1788 states and 2137 transitions. [2019-11-06 19:07:25,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 19:07:25,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2137 transitions. [2019-11-06 19:07:25,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-11-06 19:07:25,334 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:07:25,334 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:07:25,538 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:07:25,538 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:07:25,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:07:25,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1286470258, now seen corresponding path program 1 times [2019-11-06 19:07:25,539 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:07:25,539 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458778092] [2019-11-06 19:07:25,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:07:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:25,980 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 19:07:25,981 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458778092] [2019-11-06 19:07:25,981 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146037517] [2019-11-06 19:07:25,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -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 [2019-11-06 19:07:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:26,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 19:07:26,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:07:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:07:26,191 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 19:07:26,191 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2019-11-06 19:07:26,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399832753] [2019-11-06 19:07:26,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 19:07:26,194 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:07:26,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 19:07:26,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-06 19:07:26,194 INFO L87 Difference]: Start difference. First operand 1788 states and 2137 transitions. Second operand 11 states. [2019-11-06 19:07:29,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:07:29,359 INFO L93 Difference]: Finished difference Result 5675 states and 7577 transitions. [2019-11-06 19:07:29,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-06 19:07:29,360 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 235 [2019-11-06 19:07:29,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:07:29,379 INFO L225 Difference]: With dead ends: 5675 [2019-11-06 19:07:29,379 INFO L226 Difference]: Without dead ends: 2214 [2019-11-06 19:07:29,394 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2019-11-06 19:07:29,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2019-11-06 19:07:29,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2013. [2019-11-06 19:07:29,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2013 states. [2019-11-06 19:07:29,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2013 states to 2013 states and 2512 transitions. [2019-11-06 19:07:29,482 INFO L78 Accepts]: Start accepts. Automaton has 2013 states and 2512 transitions. Word has length 235 [2019-11-06 19:07:29,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:07:29,482 INFO L462 AbstractCegarLoop]: Abstraction has 2013 states and 2512 transitions. [2019-11-06 19:07:29,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 19:07:29,483 INFO L276 IsEmpty]: Start isEmpty. Operand 2013 states and 2512 transitions. [2019-11-06 19:07:29,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2019-11-06 19:07:29,493 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:07:29,493 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 19:07:29,705 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:07:29,706 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:07:29,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:07:29,706 INFO L82 PathProgramCache]: Analyzing trace with hash -53702394, now seen corresponding path program 1 times [2019-11-06 19:07:29,706 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:07:29,706 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969621491] [2019-11-06 19:07:29,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:07:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:30,100 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-06 19:07:30,101 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969621491] [2019-11-06 19:07:30,103 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347611729] [2019-11-06 19:07:30,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -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 [2019-11-06 19:07:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:30,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 19:07:30,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:07:30,281 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:07:30,282 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 19:07:30,282 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2019-11-06 19:07:30,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663897588] [2019-11-06 19:07:30,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 19:07:30,283 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:07:30,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 19:07:30,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-06 19:07:30,284 INFO L87 Difference]: Start difference. First operand 2013 states and 2512 transitions. Second operand 11 states. [2019-11-06 19:07:31,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:07:31,819 INFO L93 Difference]: Finished difference Result 4095 states and 5005 transitions. [2019-11-06 19:07:31,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 19:07:31,819 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 271 [2019-11-06 19:07:31,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:07:31,831 INFO L225 Difference]: With dead ends: 4095 [2019-11-06 19:07:31,832 INFO L226 Difference]: Without dead ends: 2128 [2019-11-06 19:07:31,839 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 274 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2019-11-06 19:07:31,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2019-11-06 19:07:31,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2076. [2019-11-06 19:07:31,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2076 states. [2019-11-06 19:07:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2412 transitions. [2019-11-06 19:07:31,900 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2412 transitions. Word has length 271 [2019-11-06 19:07:31,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:07:31,900 INFO L462 AbstractCegarLoop]: Abstraction has 2076 states and 2412 transitions. [2019-11-06 19:07:31,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 19:07:31,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2412 transitions. [2019-11-06 19:07:31,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2019-11-06 19:07:31,907 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:07:31,908 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 19:07:32,111 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:07:32,112 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:07:32,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:07:32,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1512914114, now seen corresponding path program 1 times [2019-11-06 19:07:32,112 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:07:32,113 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076009753] [2019-11-06 19:07:32,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:07:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:32,605 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 43 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2019-11-06 19:07:32,606 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076009753] [2019-11-06 19:07:32,606 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606413067] [2019-11-06 19:07:32,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -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 [2019-11-06 19:07:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:32,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-06 19:07:32,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:07:32,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:32,957 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:35,175 WARN L191 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 30 DAG size of output: 18 [2019-11-06 19:07:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 4 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:07:35,423 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 19:07:35,424 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2019-11-06 19:07:35,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452135126] [2019-11-06 19:07:35,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-06 19:07:35,425 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:07:35,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-06 19:07:35,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2019-11-06 19:07:35,426 INFO L87 Difference]: Start difference. First operand 2076 states and 2412 transitions. Second operand 17 states. [2019-11-06 19:07:40,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:07:40,217 INFO L93 Difference]: Finished difference Result 7702 states and 9480 transitions. [2019-11-06 19:07:40,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-11-06 19:07:40,217 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 285 [2019-11-06 19:07:40,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:07:40,242 INFO L225 Difference]: With dead ends: 7702 [2019-11-06 19:07:40,242 INFO L226 Difference]: Without dead ends: 5481 [2019-11-06 19:07:40,250 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=294, Invalid=762, Unknown=0, NotChecked=0, Total=1056 [2019-11-06 19:07:40,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2019-11-06 19:07:40,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 3987. [2019-11-06 19:07:40,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3987 states. [2019-11-06 19:07:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3987 states to 3987 states and 4795 transitions. [2019-11-06 19:07:40,357 INFO L78 Accepts]: Start accepts. Automaton has 3987 states and 4795 transitions. Word has length 285 [2019-11-06 19:07:40,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:07:40,358 INFO L462 AbstractCegarLoop]: Abstraction has 3987 states and 4795 transitions. [2019-11-06 19:07:40,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-06 19:07:40,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3987 states and 4795 transitions. [2019-11-06 19:07:40,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2019-11-06 19:07:40,368 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:07:40,369 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 19:07:40,573 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:07:40,573 INFO L410 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:07:40,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:07:40,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1287672678, now seen corresponding path program 1 times [2019-11-06 19:07:40,574 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:07:40,574 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961045791] [2019-11-06 19:07:40,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:07:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:40,882 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 69 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-11-06 19:07:40,882 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961045791] [2019-11-06 19:07:40,883 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597496768] [2019-11-06 19:07:40,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -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 [2019-11-06 19:07:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:41,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-06 19:07:41,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:07:41,013 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,017 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,026 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,027 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,028 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,028 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,029 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,030 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,032 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:41,124 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-11-06 19:07:41,125 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 19:07:41,125 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2019-11-06 19:07:41,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541201056] [2019-11-06 19:07:41,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 19:07:41,126 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:07:41,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 19:07:41,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 19:07:41,127 INFO L87 Difference]: Start difference. First operand 3987 states and 4795 transitions. Second operand 3 states. [2019-11-06 19:07:41,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:07:41,758 INFO L93 Difference]: Finished difference Result 8544 states and 10326 transitions. [2019-11-06 19:07:41,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 19:07:41,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 343 [2019-11-06 19:07:41,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:07:41,782 INFO L225 Difference]: With dead ends: 8544 [2019-11-06 19:07:41,782 INFO L226 Difference]: Without dead ends: 4561 [2019-11-06 19:07:41,794 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 351 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 19:07:41,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4561 states. [2019-11-06 19:07:41,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4561 to 4418. [2019-11-06 19:07:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4418 states. [2019-11-06 19:07:41,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4418 states to 4418 states and 5339 transitions. [2019-11-06 19:07:41,995 INFO L78 Accepts]: Start accepts. Automaton has 4418 states and 5339 transitions. Word has length 343 [2019-11-06 19:07:41,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:07:41,996 INFO L462 AbstractCegarLoop]: Abstraction has 4418 states and 5339 transitions. [2019-11-06 19:07:41,997 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 19:07:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4418 states and 5339 transitions. [2019-11-06 19:07:42,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2019-11-06 19:07:42,021 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:07:42,022 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:07:42,228 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:07:42,228 INFO L410 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:07:42,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:07:42,229 INFO L82 PathProgramCache]: Analyzing trace with hash 982802905, now seen corresponding path program 1 times [2019-11-06 19:07:42,229 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:07:42,229 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007736080] [2019-11-06 19:07:42,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:07:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 179 proven. 117 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2019-11-06 19:07:42,885 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007736080] [2019-11-06 19:07:42,885 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986136488] [2019-11-06 19:07:42,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -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 [2019-11-06 19:07:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:43,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 19:07:43,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:07:43,172 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 408 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-11-06 19:07:43,172 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 19:07:43,172 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 13 [2019-11-06 19:07:43,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358145213] [2019-11-06 19:07:43,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-06 19:07:43,174 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:07:43,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-06 19:07:43,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-11-06 19:07:43,174 INFO L87 Difference]: Start difference. First operand 4418 states and 5339 transitions. Second operand 13 states. [2019-11-06 19:07:45,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:07:45,866 INFO L93 Difference]: Finished difference Result 9132 states and 11015 transitions. [2019-11-06 19:07:45,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-06 19:07:45,866 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 422 [2019-11-06 19:07:45,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:07:45,885 INFO L225 Difference]: With dead ends: 9132 [2019-11-06 19:07:45,885 INFO L226 Difference]: Without dead ends: 4863 [2019-11-06 19:07:45,894 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 436 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2019-11-06 19:07:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4863 states. [2019-11-06 19:07:45,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4863 to 4430. [2019-11-06 19:07:45,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4430 states. [2019-11-06 19:07:45,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4430 states to 4430 states and 5269 transitions. [2019-11-06 19:07:45,994 INFO L78 Accepts]: Start accepts. Automaton has 4430 states and 5269 transitions. Word has length 422 [2019-11-06 19:07:45,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:07:45,995 INFO L462 AbstractCegarLoop]: Abstraction has 4430 states and 5269 transitions. [2019-11-06 19:07:45,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-06 19:07:45,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4430 states and 5269 transitions. [2019-11-06 19:07:46,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2019-11-06 19:07:46,018 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:07:46,018 INFO L410 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 19:07:46,224 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:07:46,224 INFO L410 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:07:46,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:07:46,225 INFO L82 PathProgramCache]: Analyzing trace with hash 86359130, now seen corresponding path program 1 times [2019-11-06 19:07:46,225 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:07:46,226 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471522670] [2019-11-06 19:07:46,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:07:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 101 proven. 270 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2019-11-06 19:07:47,683 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471522670] [2019-11-06 19:07:47,683 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938933337] [2019-11-06 19:07:47,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -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 [2019-11-06 19:07:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:07:47,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-06 19:07:47,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:07:47,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,941 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,941 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,941 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,942 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,957 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,962 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,963 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,965 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:47,967 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:48,331 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 22 [2019-11-06 19:07:49,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:07:49,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms