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_label29.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 17:58:19,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 17:58:19,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 17:58:19,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 17:58:19,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 17:58:19,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 17:58:19,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 17:58:19,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 17:58:19,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 17:58:19,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 17:58:19,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 17:58:19,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 17:58:19,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 17:58:19,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 17:58:19,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 17:58:19,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 17:58:19,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 17:58:19,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 17:58:19,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 17:58:19,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 17:58:19,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 17:58:19,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 17:58:19,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 17:58:19,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 17:58:19,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 17:58:19,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 17:58:19,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 17:58:19,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 17:58:19,926 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 [2019-10-13 17:58:19,942 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 17:58:19,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 17:58:19,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 17:58:19,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 17:58:19,945 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 17:58:19,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 17:58:19,945 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 17:58:19,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 17:58:19,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 17:58:19,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 17:58:19,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 17:58:19,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 17:58:19,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 17:58:19,948 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 17:58:19,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 17:58:19,948 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 17:58:19,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 17:58:19,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 17:58:19,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 17:58:19,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 17:58:19,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 17:58:19,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 17:58:19,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 17:58:19,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 17:58:19,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 17:58:19,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 17:58:19,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 17:58:19,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 17:58:19,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 17:58:20,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 17:58:20,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 17:58:20,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 17:58:20,278 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 17:58:20,278 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 17:58:20,279 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label29.c [2019-10-13 17:58:20,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edb14957a/9842c235a1ea40719923f031519f7376/FLAGb226b7e68 [2019-10-13 17:58:20,828 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 17:58:20,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label29.c [2019-10-13 17:58:20,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edb14957a/9842c235a1ea40719923f031519f7376/FLAGb226b7e68 [2019-10-13 17:58:21,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edb14957a/9842c235a1ea40719923f031519f7376 [2019-10-13 17:58:21,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 17:58:21,149 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 17:58:21,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 17:58:21,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 17:58:21,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 17:58:21,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:58:21" (1/1) ... [2019-10-13 17:58:21,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4432024b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:21, skipping insertion in model container [2019-10-13 17:58:21,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:58:21" (1/1) ... [2019-10-13 17:58:21,165 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 17:58:21,222 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 17:58:21,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 17:58:21,804 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 17:58:21,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 17:58:21,954 INFO L192 MainTranslator]: Completed translation [2019-10-13 17:58:21,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:21 WrapperNode [2019-10-13 17:58:21,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 17:58:21,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 17:58:21,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 17:58:21,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 17:58:21,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:21" (1/1) ... [2019-10-13 17:58:21,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:21" (1/1) ... [2019-10-13 17:58:21,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:21" (1/1) ... [2019-10-13 17:58:21,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:21" (1/1) ... [2019-10-13 17:58:22,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:21" (1/1) ... [2019-10-13 17:58:22,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:21" (1/1) ... [2019-10-13 17:58:22,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:21" (1/1) ... [2019-10-13 17:58:22,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 17:58:22,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 17:58:22,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 17:58:22,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 17:58:22,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:21" (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 [2019-10-13 17:58:22,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 17:58:22,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 17:58:22,116 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-13 17:58:22,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 17:58:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-13 17:58:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 17:58:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 17:58:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 17:58:22,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 17:58:22,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 17:58:22,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 17:58:23,416 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 17:58:23,417 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 17:58:23,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:58:23 BoogieIcfgContainer [2019-10-13 17:58:23,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 17:58:23,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 17:58:23,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 17:58:23,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 17:58:23,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:58:21" (1/3) ... [2019-10-13 17:58:23,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e7aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:58:23, skipping insertion in model container [2019-10-13 17:58:23,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:21" (2/3) ... [2019-10-13 17:58:23,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e7aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:58:23, skipping insertion in model container [2019-10-13 17:58:23,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:58:23" (3/3) ... [2019-10-13 17:58:23,436 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label29.c [2019-10-13 17:58:23,450 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 17:58:23,459 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 17:58:23,471 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 17:58:23,507 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 17:58:23,508 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 17:58:23,509 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 17:58:23,510 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 17:58:23,510 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 17:58:23,512 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 17:58:23,512 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 17:58:23,512 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 17:58:23,535 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2019-10-13 17:58:23,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-13 17:58:23,541 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:58:23,542 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 17:58:23,544 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:58:23,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:58:23,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1961965038, now seen corresponding path program 1 times [2019-10-13 17:58:23,559 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:58:23,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281914318] [2019-10-13 17:58:23,560 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:23,560 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:23,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:58:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:23,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 17:58:23,843 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281914318] [2019-10-13 17:58:23,844 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 17:58:23,844 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 17:58:23,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208579079] [2019-10-13 17:58:23,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 17:58:23,850 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 17:58:23,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 17:58:23,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 17:58:23,864 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2019-10-13 17:58:25,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 17:58:25,899 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2019-10-13 17:58:25,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 17:58:25,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-10-13 17:58:25,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 17:58:25,919 INFO L225 Difference]: With dead ends: 730 [2019-10-13 17:58:25,920 INFO L226 Difference]: Without dead ends: 447 [2019-10-13 17:58:25,927 INFO L600 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 [2019-10-13 17:58:25,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-13 17:58:26,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2019-10-13 17:58:26,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-10-13 17:58:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2019-10-13 17:58:26,015 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 21 [2019-10-13 17:58:26,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 17:58:26,016 INFO L462 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2019-10-13 17:58:26,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 17:58:26,016 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2019-10-13 17:58:26,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 17:58:26,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:58:26,022 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 17:58:26,022 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:58:26,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:58:26,023 INFO L82 PathProgramCache]: Analyzing trace with hash -61181822, now seen corresponding path program 1 times [2019-10-13 17:58:26,023 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:58:26,023 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291836296] [2019-10-13 17:58:26,024 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:26,024 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:26,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:58:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 17:58:26,543 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291836296] [2019-10-13 17:58:26,544 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 17:58:26,544 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 17:58:26,544 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394646003] [2019-10-13 17:58:26,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 17:58:26,548 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 17:58:26,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 17:58:26,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-13 17:58:26,550 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2019-10-13 17:58:28,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 17:58:28,972 INFO L93 Difference]: Finished difference Result 1673 states and 2829 transitions. [2019-10-13 17:58:28,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 17:58:28,974 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-13 17:58:28,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 17:58:28,989 INFO L225 Difference]: With dead ends: 1673 [2019-10-13 17:58:28,990 INFO L226 Difference]: Without dead ends: 1238 [2019-10-13 17:58:28,993 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2019-10-13 17:58:28,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2019-10-13 17:58:29,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 908. [2019-10-13 17:58:29,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2019-10-13 17:58:29,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1368 transitions. [2019-10-13 17:58:29,088 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1368 transitions. Word has length 103 [2019-10-13 17:58:29,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 17:58:29,089 INFO L462 AbstractCegarLoop]: Abstraction has 908 states and 1368 transitions. [2019-10-13 17:58:29,089 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 17:58:29,089 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1368 transitions. [2019-10-13 17:58:29,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-13 17:58:29,097 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:58:29,097 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 17:58:29,098 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:58:29,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:58:29,098 INFO L82 PathProgramCache]: Analyzing trace with hash 711851938, now seen corresponding path program 1 times [2019-10-13 17:58:29,098 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:58:29,099 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876924496] [2019-10-13 17:58:29,099 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:29,099 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:29,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:58:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:29,397 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 17:58:29,398 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876924496] [2019-10-13 17:58:29,398 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 17:58:29,398 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 17:58:29,398 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214278859] [2019-10-13 17:58:29,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 17:58:29,399 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 17:58:29,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 17:58:29,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-13 17:58:29,400 INFO L87 Difference]: Start difference. First operand 908 states and 1368 transitions. Second operand 9 states. [2019-10-13 17:58:31,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 17:58:31,324 INFO L93 Difference]: Finished difference Result 2764 states and 4664 transitions. [2019-10-13 17:58:31,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 17:58:31,325 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 119 [2019-10-13 17:58:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 17:58:31,343 INFO L225 Difference]: With dead ends: 2764 [2019-10-13 17:58:31,344 INFO L226 Difference]: Without dead ends: 1862 [2019-10-13 17:58:31,349 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2019-10-13 17:58:31,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2019-10-13 17:58:31,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1534. [2019-10-13 17:58:31,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1534 states. [2019-10-13 17:58:31,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 2339 transitions. [2019-10-13 17:58:31,454 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 2339 transitions. Word has length 119 [2019-10-13 17:58:31,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 17:58:31,457 INFO L462 AbstractCegarLoop]: Abstraction has 1534 states and 2339 transitions. [2019-10-13 17:58:31,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 17:58:31,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 2339 transitions. [2019-10-13 17:58:31,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 17:58:31,472 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:58:31,472 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 17:58:31,473 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:58:31,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:58:31,473 INFO L82 PathProgramCache]: Analyzing trace with hash -457664942, now seen corresponding path program 1 times [2019-10-13 17:58:31,473 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:58:31,474 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542347558] [2019-10-13 17:58:31,474 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:31,474 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:31,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:58:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:31,849 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 17:58:31,850 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542347558] [2019-10-13 17:58:31,850 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 17:58:31,851 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 17:58:31,851 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214039204] [2019-10-13 17:58:31,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 17:58:31,852 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 17:58:31,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 17:58:31,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-13 17:58:31,853 INFO L87 Difference]: Start difference. First operand 1534 states and 2339 transitions. Second operand 9 states. [2019-10-13 17:58:33,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 17:58:33,195 INFO L93 Difference]: Finished difference Result 3853 states and 6206 transitions. [2019-10-13 17:58:33,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 17:58:33,195 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 143 [2019-10-13 17:58:33,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 17:58:33,211 INFO L225 Difference]: With dead ends: 3853 [2019-10-13 17:58:33,211 INFO L226 Difference]: Without dead ends: 2325 [2019-10-13 17:58:33,218 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-10-13 17:58:33,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2019-10-13 17:58:33,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2124. [2019-10-13 17:58:33,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2124 states. [2019-10-13 17:58:33,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2907 transitions. [2019-10-13 17:58:33,309 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2907 transitions. Word has length 143 [2019-10-13 17:58:33,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 17:58:33,310 INFO L462 AbstractCegarLoop]: Abstraction has 2124 states and 2907 transitions. [2019-10-13 17:58:33,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 17:58:33,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2907 transitions. [2019-10-13 17:58:33,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-13 17:58:33,314 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:58:33,314 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 17:58:33,315 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:58:33,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:58:33,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1615029563, now seen corresponding path program 1 times [2019-10-13 17:58:33,315 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:58:33,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158265228] [2019-10-13 17:58:33,316 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:33,316 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:33,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:58:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 104 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 17:58:33,597 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158265228] [2019-10-13 17:58:33,598 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228261934] [2019-10-13 17:58:33,598 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 [2019-10-13 17:58:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:33,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 17:58:33,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 17:58:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 17:58:33,896 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 17:58:33,897 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2019-10-13 17:58:33,897 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677051337] [2019-10-13 17:58:33,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 17:58:33,899 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 17:58:33,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 17:58:33,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 17:58:33,900 INFO L87 Difference]: Start difference. First operand 2124 states and 2907 transitions. Second operand 12 states. [2019-10-13 17:58:37,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 17:58:37,620 INFO L93 Difference]: Finished difference Result 5883 states and 8396 transitions. [2019-10-13 17:58:37,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-13 17:58:37,621 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 182 [2019-10-13 17:58:37,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 17:58:37,643 INFO L225 Difference]: With dead ends: 5883 [2019-10-13 17:58:37,644 INFO L226 Difference]: Without dead ends: 3620 [2019-10-13 17:58:37,653 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=355, Invalid=977, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 17:58:37,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3620 states. [2019-10-13 17:58:37,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3620 to 2863. [2019-10-13 17:58:37,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2863 states. [2019-10-13 17:58:37,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2863 states to 2863 states and 3740 transitions. [2019-10-13 17:58:37,808 INFO L78 Accepts]: Start accepts. Automaton has 2863 states and 3740 transitions. Word has length 182 [2019-10-13 17:58:37,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 17:58:37,809 INFO L462 AbstractCegarLoop]: Abstraction has 2863 states and 3740 transitions. [2019-10-13 17:58:37,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 17:58:37,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2863 states and 3740 transitions. [2019-10-13 17:58:37,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 17:58:37,815 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:58:37,816 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 17:58:38,031 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 17:58:38,031 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:58:38,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:58:38,032 INFO L82 PathProgramCache]: Analyzing trace with hash 799619137, now seen corresponding path program 1 times [2019-10-13 17:58:38,033 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:58:38,033 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937307579] [2019-10-13 17:58:38,033 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:38,033 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:38,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:58:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:38,337 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 28 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 17:58:38,337 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937307579] [2019-10-13 17:58:38,338 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311528999] [2019-10-13 17:58:38,338 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 [2019-10-13 17:58:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:38,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 17:58:38,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 17:58:38,536 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 17:58:38,537 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-13 17:58:38,537 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2019-10-13 17:58:38,538 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437597807] [2019-10-13 17:58:38,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 17:58:38,539 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 17:58:38,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 17:58:38,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 17:58:38,540 INFO L87 Difference]: Start difference. First operand 2863 states and 3740 transitions. Second operand 5 states. [2019-10-13 17:58:39,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 17:58:39,417 INFO L93 Difference]: Finished difference Result 5881 states and 7688 transitions. [2019-10-13 17:58:39,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 17:58:39,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 196 [2019-10-13 17:58:39,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 17:58:39,436 INFO L225 Difference]: With dead ends: 5881 [2019-10-13 17:58:39,437 INFO L226 Difference]: Without dead ends: 3024 [2019-10-13 17:58:39,448 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 198 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2019-10-13 17:58:39,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3024 states. [2019-10-13 17:58:39,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3024 to 2873. [2019-10-13 17:58:39,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2873 states. [2019-10-13 17:58:39,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 3762 transitions. [2019-10-13 17:58:39,556 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 3762 transitions. Word has length 196 [2019-10-13 17:58:39,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 17:58:39,557 INFO L462 AbstractCegarLoop]: Abstraction has 2873 states and 3762 transitions. [2019-10-13 17:58:39,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 17:58:39,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 3762 transitions. [2019-10-13 17:58:39,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-10-13 17:58:39,565 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:58:39,565 INFO L380 BasicCegarLoop]: trace histogram [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, 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] [2019-10-13 17:58:39,777 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 17:58:39,778 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:58:39,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:58:39,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1679886725, now seen corresponding path program 1 times [2019-10-13 17:58:39,779 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:58:39,779 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466917148] [2019-10-13 17:58:39,780 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:39,780 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:39,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:58:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:40,355 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 51 proven. 201 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 17:58:40,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466917148] [2019-10-13 17:58:40,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344714564] [2019-10-13 17:58:40,357 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 [2019-10-13 17:58:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:40,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 17:58:40,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 17:58:40,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 17:58:40,571 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 242 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 17:58:40,571 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 17:58:40,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5] total 15 [2019-10-13 17:58:40,572 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504935760] [2019-10-13 17:58:40,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 17:58:40,573 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 17:58:40,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 17:58:40,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2019-10-13 17:58:40,574 INFO L87 Difference]: Start difference. First operand 2873 states and 3762 transitions. Second operand 15 states. [2019-10-13 17:58:45,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 17:58:45,552 INFO L93 Difference]: Finished difference Result 5834 states and 8064 transitions. [2019-10-13 17:58:45,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-10-13 17:58:45,553 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 266 [2019-10-13 17:58:45,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 17:58:45,572 INFO L225 Difference]: With dead ends: 5834 [2019-10-13 17:58:45,573 INFO L226 Difference]: Without dead ends: 3110 [2019-10-13 17:58:45,584 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 306 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=548, Invalid=2314, Unknown=0, NotChecked=0, Total=2862 [2019-10-13 17:58:45,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2019-10-13 17:58:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 3028. [2019-10-13 17:58:45,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3028 states. [2019-10-13 17:58:45,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 3712 transitions. [2019-10-13 17:58:45,699 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 3712 transitions. Word has length 266 [2019-10-13 17:58:45,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 17:58:45,700 INFO L462 AbstractCegarLoop]: Abstraction has 3028 states and 3712 transitions. [2019-10-13 17:58:45,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 17:58:45,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 3712 transitions. [2019-10-13 17:58:45,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2019-10-13 17:58:45,710 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 17:58:45,711 INFO L380 BasicCegarLoop]: trace histogram [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, 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] [2019-10-13 17:58:45,924 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 17:58:45,924 INFO L410 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 17:58:45,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 17:58:45,925 INFO L82 PathProgramCache]: Analyzing trace with hash -105495466, now seen corresponding path program 1 times [2019-10-13 17:58:45,925 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 17:58:45,928 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472370689] [2019-10-13 17:58:45,928 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:45,928 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 17:58:45,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 17:58:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 49 proven. 238 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 17:58:46,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472370689] [2019-10-13 17:58:46,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103404824] [2019-10-13 17:58:46,691 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 [2019-10-13 17:58:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 17:58:46,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-13 17:58:46,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 17:58:46,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 17:58:46,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 17:58:46,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 17:58:46,963 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 17:58:46,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 17:58:46,966 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 17:58:46,969 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 17:58:46,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms