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/Problem03_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 21:54:23,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 21:54:23,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 21:54:23,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 21:54:23,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 21:54:23,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 21:54:23,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 21:54:23,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 21:54:23,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 21:54:23,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 21:54:23,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 21:54:23,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 21:54:23,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 21:54:23,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 21:54:23,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 21:54:23,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 21:54:23,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 21:54:23,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 21:54:23,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 21:54:23,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 21:54:23,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 21:54:23,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 21:54:23,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 21:54:23,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 21:54:23,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 21:54:23,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 21:54:23,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 21:54:23,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 21:54:23,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 21:54:23,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 21:54:23,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 21:54:23,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 21:54:23,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 21:54:23,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 21:54:23,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 21:54:23,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 21:54:23,581 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 [2019-10-14 21:54:23,597 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 21:54:23,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 21:54:23,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 21:54:23,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 21:54:23,598 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 21:54:23,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 21:54:23,599 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 21:54:23,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 21:54:23,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 21:54:23,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 21:54:23,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 21:54:23,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 21:54:23,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 21:54:23,600 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 21:54:23,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 21:54:23,601 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 21:54:23,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 21:54:23,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 21:54:23,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 21:54:23,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 21:54:23,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 21:54:23,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 21:54:23,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 21:54:23,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 21:54:23,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 21:54:23,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 21:54:23,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 21:54:23,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 21:54:23,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 21:54:23,865 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 21:54:23,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 21:54:23,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 21:54:23,883 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 21:54:23,884 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 21:54:23,885 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label27.c [2019-10-14 21:54:23,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938a64ce5/3cc33c6d600241e18ee5da12c98fc509/FLAG8c03147ca [2019-10-14 21:54:24,558 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 21:54:24,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label27.c [2019-10-14 21:54:24,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938a64ce5/3cc33c6d600241e18ee5da12c98fc509/FLAG8c03147ca [2019-10-14 21:54:24,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938a64ce5/3cc33c6d600241e18ee5da12c98fc509 [2019-10-14 21:54:24,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 21:54:24,786 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 21:54:24,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 21:54:24,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 21:54:24,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 21:54:24,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:54:24" (1/1) ... [2019-10-14 21:54:24,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce7b69a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:24, skipping insertion in model container [2019-10-14 21:54:24,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:54:24" (1/1) ... [2019-10-14 21:54:24,801 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 21:54:24,869 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 21:54:25,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 21:54:25,635 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 21:54:25,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 21:54:25,936 INFO L192 MainTranslator]: Completed translation [2019-10-14 21:54:25,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:25 WrapperNode [2019-10-14 21:54:25,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 21:54:25,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 21:54:25,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 21:54:25,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 21:54:25,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:25" (1/1) ... [2019-10-14 21:54:25,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:25" (1/1) ... [2019-10-14 21:54:26,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:25" (1/1) ... [2019-10-14 21:54:26,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:25" (1/1) ... [2019-10-14 21:54:26,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:25" (1/1) ... [2019-10-14 21:54:26,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:25" (1/1) ... [2019-10-14 21:54:26,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:25" (1/1) ... [2019-10-14 21:54:26,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 21:54:26,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 21:54:26,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 21:54:26,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 21:54:26,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:25" (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 [2019-10-14 21:54:26,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 21:54:26,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 21:54:26,225 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-14 21:54:26,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 21:54:26,225 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-14 21:54:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 21:54:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 21:54:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 21:54:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 21:54:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 21:54:26,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 21:54:28,001 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 21:54:28,002 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 21:54:28,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:54:28 BoogieIcfgContainer [2019-10-14 21:54:28,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 21:54:28,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 21:54:28,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 21:54:28,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 21:54:28,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:54:24" (1/3) ... [2019-10-14 21:54:28,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445ab2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:54:28, skipping insertion in model container [2019-10-14 21:54:28,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:25" (2/3) ... [2019-10-14 21:54:28,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445ab2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:54:28, skipping insertion in model container [2019-10-14 21:54:28,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:54:28" (3/3) ... [2019-10-14 21:54:28,012 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label27.c [2019-10-14 21:54:28,021 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 21:54:28,030 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 21:54:28,041 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 21:54:28,069 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 21:54:28,069 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 21:54:28,069 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 21:54:28,069 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 21:54:28,070 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 21:54:28,070 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 21:54:28,070 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 21:54:28,070 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 21:54:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2019-10-14 21:54:28,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-14 21:54:28,110 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:54:28,111 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:54:28,113 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:54:28,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:54:28,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1303003168, now seen corresponding path program 1 times [2019-10-14 21:54:28,128 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:54:28,128 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600320533] [2019-10-14 21:54:28,129 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:28,129 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:28,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:54:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:28,963 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-10-14 21:54:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:54:29,089 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600320533] [2019-10-14 21:54:29,090 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 21:54:29,090 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 21:54:29,091 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959020591] [2019-10-14 21:54:29,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 21:54:29,096 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:54:29,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 21:54:29,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 21:54:29,112 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 5 states. [2019-10-14 21:54:29,349 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-10-14 21:54:29,969 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 21:54:33,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:54:33,389 INFO L93 Difference]: Finished difference Result 1121 states and 2001 transitions. [2019-10-14 21:54:33,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 21:54:33,391 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2019-10-14 21:54:33,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:54:33,412 INFO L225 Difference]: With dead ends: 1121 [2019-10-14 21:54:33,412 INFO L226 Difference]: Without dead ends: 712 [2019-10-14 21:54:33,422 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 21:54:33,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2019-10-14 21:54:33,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 469. [2019-10-14 21:54:33,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2019-10-14 21:54:33,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 753 transitions. [2019-10-14 21:54:33,517 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 753 transitions. Word has length 159 [2019-10-14 21:54:33,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:54:33,518 INFO L462 AbstractCegarLoop]: Abstraction has 469 states and 753 transitions. [2019-10-14 21:54:33,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 21:54:33,519 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 753 transitions. [2019-10-14 21:54:33,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-14 21:54:33,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:54:33,526 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:54:33,526 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:54:33,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:54:33,526 INFO L82 PathProgramCache]: Analyzing trace with hash 436458787, now seen corresponding path program 1 times [2019-10-14 21:54:33,527 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:54:33,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043396223] [2019-10-14 21:54:33,527 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:33,527 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:33,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:54:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:33,782 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-10-14 21:54:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:33,969 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:54:33,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043396223] [2019-10-14 21:54:33,970 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 21:54:33,970 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 21:54:33,970 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098285030] [2019-10-14 21:54:33,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 21:54:33,972 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:54:33,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 21:54:33,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-14 21:54:33,973 INFO L87 Difference]: Start difference. First operand 469 states and 753 transitions. Second operand 8 states. [2019-10-14 21:54:34,131 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-10-14 21:54:36,724 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-10-14 21:54:37,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:54:37,229 INFO L93 Difference]: Finished difference Result 1416 states and 2361 transitions. [2019-10-14 21:54:37,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 21:54:37,230 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2019-10-14 21:54:37,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:54:37,242 INFO L225 Difference]: With dead ends: 1416 [2019-10-14 21:54:37,243 INFO L226 Difference]: Without dead ends: 953 [2019-10-14 21:54:37,246 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2019-10-14 21:54:37,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2019-10-14 21:54:37,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 908. [2019-10-14 21:54:37,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2019-10-14 21:54:37,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1448 transitions. [2019-10-14 21:54:37,318 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1448 transitions. Word has length 168 [2019-10-14 21:54:37,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:54:37,318 INFO L462 AbstractCegarLoop]: Abstraction has 908 states and 1448 transitions. [2019-10-14 21:54:37,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 21:54:37,319 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1448 transitions. [2019-10-14 21:54:37,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-14 21:54:37,327 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:54:37,327 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:54:37,327 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:54:37,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:54:37,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1302221225, now seen corresponding path program 1 times [2019-10-14 21:54:37,328 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:54:37,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182963411] [2019-10-14 21:54:37,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:37,329 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:37,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:54:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:37,541 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-10-14 21:54:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:37,768 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:54:37,770 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182963411] [2019-10-14 21:54:37,776 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 21:54:37,776 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 21:54:37,777 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196656028] [2019-10-14 21:54:37,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 21:54:37,788 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:54:37,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 21:54:37,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-14 21:54:37,789 INFO L87 Difference]: Start difference. First operand 908 states and 1448 transitions. Second operand 8 states. [2019-10-14 21:54:38,002 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-10-14 21:54:38,303 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-10-14 21:54:38,689 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 21:54:42,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:54:42,290 INFO L93 Difference]: Finished difference Result 3573 states and 5952 transitions. [2019-10-14 21:54:42,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 21:54:42,293 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 169 [2019-10-14 21:54:42,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:54:42,310 INFO L225 Difference]: With dead ends: 3573 [2019-10-14 21:54:42,310 INFO L226 Difference]: Without dead ends: 2671 [2019-10-14 21:54:42,314 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-10-14 21:54:42,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2019-10-14 21:54:42,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2636. [2019-10-14 21:54:42,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2636 states. [2019-10-14 21:54:42,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4006 transitions. [2019-10-14 21:54:42,450 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4006 transitions. Word has length 169 [2019-10-14 21:54:42,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:54:42,452 INFO L462 AbstractCegarLoop]: Abstraction has 2636 states and 4006 transitions. [2019-10-14 21:54:42,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 21:54:42,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4006 transitions. [2019-10-14 21:54:42,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-14 21:54:42,463 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:54:42,464 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:54:42,464 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:54:42,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:54:42,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1015492916, now seen corresponding path program 1 times [2019-10-14 21:54:42,465 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:54:42,465 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939901222] [2019-10-14 21:54:42,465 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:42,466 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:42,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:54:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:42,801 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-10-14 21:54:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:42,936 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:54:42,937 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939901222] [2019-10-14 21:54:42,937 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224100512] [2019-10-14 21:54:42,937 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 [2019-10-14 21:54:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:43,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-14 21:54:43,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 21:54:43,214 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:54:43,214 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 21:54:43,215 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-10-14 21:54:43,215 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877329629] [2019-10-14 21:54:43,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 21:54:43,216 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:54:43,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 21:54:43,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-14 21:54:43,216 INFO L87 Difference]: Start difference. First operand 2636 states and 4006 transitions. Second operand 5 states. [2019-10-14 21:54:44,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:54:44,733 INFO L93 Difference]: Finished difference Result 8000 states and 12959 transitions. [2019-10-14 21:54:44,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 21:54:44,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2019-10-14 21:54:44,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:54:44,773 INFO L225 Difference]: With dead ends: 8000 [2019-10-14 21:54:44,773 INFO L226 Difference]: Without dead ends: 5370 [2019-10-14 21:54:44,782 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-14 21:54:44,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5370 states. [2019-10-14 21:54:44,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5370 to 5308. [2019-10-14 21:54:44,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5308 states. [2019-10-14 21:54:44,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 8266 transitions. [2019-10-14 21:54:44,991 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 8266 transitions. Word has length 171 [2019-10-14 21:54:44,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:54:44,992 INFO L462 AbstractCegarLoop]: Abstraction has 5308 states and 8266 transitions. [2019-10-14 21:54:44,993 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 21:54:44,993 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 8266 transitions. [2019-10-14 21:54:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-14 21:54:45,013 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:54:45,013 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:54:45,220 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:54:45,220 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:54:45,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:54:45,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1082780184, now seen corresponding path program 1 times [2019-10-14 21:54:45,221 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:54:45,221 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927976676] [2019-10-14 21:54:45,221 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:45,221 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:45,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:54:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:45,591 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-10-14 21:54:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:45,776 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:54:45,777 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927976676] [2019-10-14 21:54:45,777 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781323924] [2019-10-14 21:54:45,777 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 [2019-10-14 21:54:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:46,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-14 21:54:46,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 21:54:46,060 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:54:46,061 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 21:54:46,061 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2019-10-14 21:54:46,061 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606325458] [2019-10-14 21:54:46,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 21:54:46,062 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:54:46,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 21:54:46,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 21:54:46,063 INFO L87 Difference]: Start difference. First operand 5308 states and 8266 transitions. Second operand 3 states. [2019-10-14 21:54:47,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:54:47,153 INFO L93 Difference]: Finished difference Result 15348 states and 24715 transitions. [2019-10-14 21:54:47,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 21:54:47,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2019-10-14 21:54:47,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:54:47,214 INFO L225 Difference]: With dead ends: 15348 [2019-10-14 21:54:47,215 INFO L226 Difference]: Without dead ends: 10046 [2019-10-14 21:54:47,232 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 21:54:47,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10046 states. [2019-10-14 21:54:47,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10046 to 10030. [2019-10-14 21:54:47,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10030 states. [2019-10-14 21:54:47,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10030 states to 10030 states and 15540 transitions. [2019-10-14 21:54:47,607 INFO L78 Accepts]: Start accepts. Automaton has 10030 states and 15540 transitions. Word has length 173 [2019-10-14 21:54:47,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:54:47,608 INFO L462 AbstractCegarLoop]: Abstraction has 10030 states and 15540 transitions. [2019-10-14 21:54:47,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 21:54:47,608 INFO L276 IsEmpty]: Start isEmpty. Operand 10030 states and 15540 transitions. [2019-10-14 21:54:47,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-14 21:54:47,641 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:54:47,642 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:54:47,847 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 21:54:47,848 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:54:47,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:54:47,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1343685801, now seen corresponding path program 1 times [2019-10-14 21:54:47,849 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:54:47,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952178115] [2019-10-14 21:54:47,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:47,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:47,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:54:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:48,166 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-10-14 21:54:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:48,323 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:54:48,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952178115] [2019-10-14 21:54:48,324 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 21:54:48,324 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 21:54:48,324 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827773294] [2019-10-14 21:54:48,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 21:54:48,326 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:54:48,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 21:54:48,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-14 21:54:48,326 INFO L87 Difference]: Start difference. First operand 10030 states and 15540 transitions. Second operand 9 states. [2019-10-14 21:54:48,458 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-10-14 21:54:48,810 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-10-14 21:54:49,146 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 21:54:52,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:54:52,961 INFO L93 Difference]: Finished difference Result 36208 states and 60113 transitions. [2019-10-14 21:54:52,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 21:54:52,962 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2019-10-14 21:54:52,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:54:53,121 INFO L225 Difference]: With dead ends: 36208 [2019-10-14 21:54:53,121 INFO L226 Difference]: Without dead ends: 26184 [2019-10-14 21:54:53,171 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-14 21:54:53,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26184 states. [2019-10-14 21:54:54,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26184 to 26008. [2019-10-14 21:54:54,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26008 states. [2019-10-14 21:54:54,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26008 states to 26008 states and 38650 transitions. [2019-10-14 21:54:54,063 INFO L78 Accepts]: Start accepts. Automaton has 26008 states and 38650 transitions. Word has length 178 [2019-10-14 21:54:54,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 21:54:54,063 INFO L462 AbstractCegarLoop]: Abstraction has 26008 states and 38650 transitions. [2019-10-14 21:54:54,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 21:54:54,064 INFO L276 IsEmpty]: Start isEmpty. Operand 26008 states and 38650 transitions. [2019-10-14 21:54:54,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-14 21:54:54,132 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 21:54:54,132 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 21:54:54,133 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 21:54:54,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 21:54:54,133 INFO L82 PathProgramCache]: Analyzing trace with hash 601297791, now seen corresponding path program 1 times [2019-10-14 21:54:54,133 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 21:54:54,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421642958] [2019-10-14 21:54:54,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:54,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 21:54:54,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 21:54:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:54,386 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-10-14 21:54:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 21:54:54,575 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 21:54:54,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421642958] [2019-10-14 21:54:54,577 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 21:54:54,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 21:54:54,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988981717] [2019-10-14 21:54:54,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 21:54:54,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 21:54:54,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 21:54:54,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-14 21:54:54,579 INFO L87 Difference]: Start difference. First operand 26008 states and 38650 transitions. Second operand 9 states. [2019-10-14 21:54:55,315 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-10-14 21:54:55,805 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-10-14 21:54:58,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 21:54:58,602 INFO L93 Difference]: Finished difference Result 64183 states and 98432 transitions. [2019-10-14 21:54:58,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 21:54:58,607 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 182 [2019-10-14 21:54:58,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 21:54:58,737 INFO L225 Difference]: With dead ends: 64183 [2019-10-14 21:54:58,738 INFO L226 Difference]: Without dead ends: 38181 [2019-10-14 21:54:58,795 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-10-14 21:54:58,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38181 states.