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/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 08:00:59,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 08:00:59,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 08:00:59,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 08:00:59,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 08:00:59,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 08:00:59,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 08:00:59,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 08:00:59,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 08:00:59,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 08:00:59,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 08:00:59,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 08:00:59,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 08:00:59,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 08:00:59,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 08:00:59,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 08:00:59,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 08:00:59,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 08:00:59,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 08:00:59,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 08:00:59,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 08:00:59,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 08:00:59,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 08:00:59,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 08:00:59,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 08:00:59,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 08:00:59,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 08:00:59,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 08:00:59,560 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 [2019-09-08 08:00:59,575 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 08:00:59,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 08:00:59,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 08:00:59,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 08:00:59,579 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 08:00:59,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 08:00:59,580 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 08:00:59,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 08:00:59,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 08:00:59,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 08:00:59,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 08:00:59,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 08:00:59,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 08:00:59,581 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 08:00:59,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 08:00:59,582 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 08:00:59,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 08:00:59,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 08:00:59,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 08:00:59,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 08:00:59,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 08:00:59,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 08:00:59,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 08:00:59,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 08:00:59,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 08:00:59,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 08:00:59,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 08:00:59,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 08:00:59,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 08:00:59,619 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 08:00:59,638 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 08:00:59,642 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 08:00:59,644 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 08:00:59,644 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 08:00:59,645 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c [2019-09-08 08:00:59,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139088a21/7511e2614dd948f0a9ced24dea585177/FLAGe18bd0eae [2019-09-08 08:01:00,250 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 08:01:00,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c [2019-09-08 08:01:00,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139088a21/7511e2614dd948f0a9ced24dea585177/FLAGe18bd0eae [2019-09-08 08:01:00,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/139088a21/7511e2614dd948f0a9ced24dea585177 [2019-09-08 08:01:00,588 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 08:01:00,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 08:01:00,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 08:01:00,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 08:01:00,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 08:01:00,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:01:00" (1/1) ... [2019-09-08 08:01:00,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75966529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:01:00, skipping insertion in model container [2019-09-08 08:01:00,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:01:00" (1/1) ... [2019-09-08 08:01:00,607 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 08:01:00,666 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 08:01:01,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 08:01:01,030 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 08:01:01,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 08:01:01,159 INFO L192 MainTranslator]: Completed translation [2019-09-08 08:01:01,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:01:01 WrapperNode [2019-09-08 08:01:01,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 08:01:01,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 08:01:01,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 08:01:01,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 08:01:01,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:01:01" (1/1) ... [2019-09-08 08:01:01,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:01:01" (1/1) ... [2019-09-08 08:01:01,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:01:01" (1/1) ... [2019-09-08 08:01:01,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:01:01" (1/1) ... [2019-09-08 08:01:01,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:01:01" (1/1) ... [2019-09-08 08:01:01,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:01:01" (1/1) ... [2019-09-08 08:01:01,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:01:01" (1/1) ... [2019-09-08 08:01:01,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 08:01:01,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 08:01:01,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 08:01:01,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 08:01:01,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:01:01" (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 [2019-09-08 08:01:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 08:01:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 08:01:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2019-09-08 08:01:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2019-09-08 08:01:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2019-09-08 08:01:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2019-09-08 08:01:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2019-09-08 08:01:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2019-09-08 08:01:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-08 08:01:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-09-08 08:01:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 08:01:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-09-08 08:01:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 08:01:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 08:01:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 08:01:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-08 08:01:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 08:01:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 08:01:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 08:01:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 08:01:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 08:01:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 08:01:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 08:01:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-08 08:01:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2019-09-08 08:01:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2019-09-08 08:01:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 08:01:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 08:01:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 08:01:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 08:01:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 08:01:02,042 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 08:01:02,043 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-08 08:01:02,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:01:02 BoogieIcfgContainer [2019-09-08 08:01:02,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 08:01:02,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 08:01:02,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 08:01:02,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 08:01:02,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 08:01:00" (1/3) ... [2019-09-08 08:01:02,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3e980d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 08:01:02, skipping insertion in model container [2019-09-08 08:01:02,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:01:01" (2/3) ... [2019-09-08 08:01:02,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3e980d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 08:01:02, skipping insertion in model container [2019-09-08 08:01:02,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:01:02" (3/3) ... [2019-09-08 08:01:02,059 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c [2019-09-08 08:01:02,072 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 08:01:02,083 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 08:01:02,103 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 08:01:02,169 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 08:01:02,170 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 08:01:02,170 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 08:01:02,170 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 08:01:02,170 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 08:01:02,171 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 08:01:02,171 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 08:01:02,171 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 08:01:02,171 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 08:01:02,199 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2019-09-08 08:01:02,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 08:01:02,210 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:02,212 INFO L399 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] [2019-09-08 08:01:02,215 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:02,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:02,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1623400355, now seen corresponding path program 1 times [2019-09-08 08:01:02,223 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:02,224 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:02,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:02,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:02,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:02,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:02,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:02,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:01:02,728 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:01:02,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:01:02,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:01:02,747 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 5 states. [2019-09-08 08:01:02,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:02,927 INFO L93 Difference]: Finished difference Result 237 states and 355 transitions. [2019-09-08 08:01:02,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 08:01:02,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-09-08 08:01:02,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:02,942 INFO L225 Difference]: With dead ends: 237 [2019-09-08 08:01:02,943 INFO L226 Difference]: Without dead ends: 140 [2019-09-08 08:01:02,947 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 08:01:02,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-09-08 08:01:02,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-09-08 08:01:02,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-09-08 08:01:02,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 176 transitions. [2019-09-08 08:01:02,995 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 176 transitions. Word has length 68 [2019-09-08 08:01:02,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:02,996 INFO L475 AbstractCegarLoop]: Abstraction has 140 states and 176 transitions. [2019-09-08 08:01:02,996 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:01:02,996 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 176 transitions. [2019-09-08 08:01:03,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-08 08:01:03,001 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:03,001 INFO L399 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] [2019-09-08 08:01:03,002 INFO L418 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:03,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:03,002 INFO L82 PathProgramCache]: Analyzing trace with hash -943611812, now seen corresponding path program 1 times [2019-09-08 08:01:03,003 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:03,003 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:03,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:03,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:03,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:03,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:03,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-09-08 08:01:03,577 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 08:01:03,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 08:01:03,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-09-08 08:01:03,578 INFO L87 Difference]: Start difference. First operand 140 states and 176 transitions. Second operand 15 states. [2019-09-08 08:01:12,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:12,673 INFO L93 Difference]: Finished difference Result 1566 states and 2422 transitions. [2019-09-08 08:01:12,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2019-09-08 08:01:12,674 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 107 [2019-09-08 08:01:12,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:12,701 INFO L225 Difference]: With dead ends: 1566 [2019-09-08 08:01:12,701 INFO L226 Difference]: Without dead ends: 1478 [2019-09-08 08:01:12,707 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2179 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1247, Invalid=4759, Unknown=0, NotChecked=0, Total=6006 [2019-09-08 08:01:12,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2019-09-08 08:01:12,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1133. [2019-09-08 08:01:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2019-09-08 08:01:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1625 transitions. [2019-09-08 08:01:12,918 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1625 transitions. Word has length 107 [2019-09-08 08:01:12,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:12,921 INFO L475 AbstractCegarLoop]: Abstraction has 1133 states and 1625 transitions. [2019-09-08 08:01:12,921 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 08:01:12,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1625 transitions. [2019-09-08 08:01:12,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-08 08:01:12,938 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:12,938 INFO L399 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] [2019-09-08 08:01:12,938 INFO L418 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:12,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:12,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1641944652, now seen corresponding path program 1 times [2019-09-08 08:01:12,939 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:12,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:12,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:12,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:12,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:13,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:13,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:13,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 08:01:13,034 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 08:01:13,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 08:01:13,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 08:01:13,035 INFO L87 Difference]: Start difference. First operand 1133 states and 1625 transitions. Second operand 3 states. [2019-09-08 08:01:13,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:13,160 INFO L93 Difference]: Finished difference Result 3218 states and 4684 transitions. [2019-09-08 08:01:13,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 08:01:13,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-09-08 08:01:13,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:13,175 INFO L225 Difference]: With dead ends: 3218 [2019-09-08 08:01:13,175 INFO L226 Difference]: Without dead ends: 2137 [2019-09-08 08:01:13,181 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 08:01:13,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2019-09-08 08:01:13,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 2111. [2019-09-08 08:01:13,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2111 states. [2019-09-08 08:01:13,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 3029 transitions. [2019-09-08 08:01:13,316 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 3029 transitions. Word has length 109 [2019-09-08 08:01:13,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:13,316 INFO L475 AbstractCegarLoop]: Abstraction has 2111 states and 3029 transitions. [2019-09-08 08:01:13,317 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 08:01:13,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 3029 transitions. [2019-09-08 08:01:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-08 08:01:13,320 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:13,320 INFO L399 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] [2019-09-08 08:01:13,321 INFO L418 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:13,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:13,321 INFO L82 PathProgramCache]: Analyzing trace with hash 354242196, now seen corresponding path program 1 times [2019-09-08 08:01:13,321 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:13,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:13,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:13,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:13,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:13,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:13,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:01:13,477 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:01:13,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:01:13,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:01:13,478 INFO L87 Difference]: Start difference. First operand 2111 states and 3029 transitions. Second operand 5 states. [2019-09-08 08:01:14,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:14,339 INFO L93 Difference]: Finished difference Result 6079 states and 8787 transitions. [2019-09-08 08:01:14,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:01:14,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2019-09-08 08:01:14,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:14,365 INFO L225 Difference]: With dead ends: 6079 [2019-09-08 08:01:14,365 INFO L226 Difference]: Without dead ends: 4020 [2019-09-08 08:01:14,372 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 08:01:14,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4020 states. [2019-09-08 08:01:14,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4020 to 4018. [2019-09-08 08:01:14,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4018 states. [2019-09-08 08:01:14,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 5739 transitions. [2019-09-08 08:01:14,654 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 5739 transitions. Word has length 109 [2019-09-08 08:01:14,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:14,655 INFO L475 AbstractCegarLoop]: Abstraction has 4018 states and 5739 transitions. [2019-09-08 08:01:14,655 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:01:14,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 5739 transitions. [2019-09-08 08:01:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-08 08:01:14,658 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:14,659 INFO L399 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] [2019-09-08 08:01:14,659 INFO L418 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:14,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:14,659 INFO L82 PathProgramCache]: Analyzing trace with hash -996933238, now seen corresponding path program 1 times [2019-09-08 08:01:14,660 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:14,660 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:14,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:14,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:14,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:14,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:14,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:14,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:01:14,820 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:01:14,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:01:14,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:01:14,821 INFO L87 Difference]: Start difference. First operand 4018 states and 5739 transitions. Second operand 5 states. [2019-09-08 08:01:15,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:15,716 INFO L93 Difference]: Finished difference Result 11626 states and 16705 transitions. [2019-09-08 08:01:15,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:01:15,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2019-09-08 08:01:15,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:15,766 INFO L225 Difference]: With dead ends: 11626 [2019-09-08 08:01:15,766 INFO L226 Difference]: Without dead ends: 7660 [2019-09-08 08:01:15,778 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 08:01:15,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7660 states. [2019-09-08 08:01:16,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7660 to 7658. [2019-09-08 08:01:16,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7658 states. [2019-09-08 08:01:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7658 states to 7658 states and 10877 transitions. [2019-09-08 08:01:16,230 INFO L78 Accepts]: Start accepts. Automaton has 7658 states and 10877 transitions. Word has length 109 [2019-09-08 08:01:16,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:16,231 INFO L475 AbstractCegarLoop]: Abstraction has 7658 states and 10877 transitions. [2019-09-08 08:01:16,231 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:01:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 7658 states and 10877 transitions. [2019-09-08 08:01:16,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-08 08:01:16,234 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:16,234 INFO L399 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] [2019-09-08 08:01:16,234 INFO L418 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:16,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:16,235 INFO L82 PathProgramCache]: Analyzing trace with hash 250575616, now seen corresponding path program 1 times [2019-09-08 08:01:16,235 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:16,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:16,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:16,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:16,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:16,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:16,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:16,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:01:16,362 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:01:16,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:01:16,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:01:16,362 INFO L87 Difference]: Start difference. First operand 7658 states and 10877 transitions. Second operand 5 states. [2019-09-08 08:01:17,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:17,564 INFO L93 Difference]: Finished difference Result 22198 states and 31695 transitions. [2019-09-08 08:01:17,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:01:17,565 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2019-09-08 08:01:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:17,673 INFO L225 Difference]: With dead ends: 22198 [2019-09-08 08:01:17,673 INFO L226 Difference]: Without dead ends: 14592 [2019-09-08 08:01:17,702 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 08:01:17,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14592 states. [2019-09-08 08:01:18,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14592 to 14590. [2019-09-08 08:01:18,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14590 states. [2019-09-08 08:01:18,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14590 states to 14590 states and 20589 transitions. [2019-09-08 08:01:18,651 INFO L78 Accepts]: Start accepts. Automaton has 14590 states and 20589 transitions. Word has length 109 [2019-09-08 08:01:18,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:18,652 INFO L475 AbstractCegarLoop]: Abstraction has 14590 states and 20589 transitions. [2019-09-08 08:01:18,652 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:01:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 14590 states and 20589 transitions. [2019-09-08 08:01:18,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-08 08:01:18,654 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:18,654 INFO L399 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] [2019-09-08 08:01:18,655 INFO L418 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:18,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:18,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1387652534, now seen corresponding path program 1 times [2019-09-08 08:01:18,655 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:18,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:18,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:18,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:18,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:18,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:18,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:18,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:01:18,803 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:01:18,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:01:18,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:01:18,804 INFO L87 Difference]: Start difference. First operand 14590 states and 20589 transitions. Second operand 5 states. [2019-09-08 08:01:21,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:21,177 INFO L93 Difference]: Finished difference Result 42274 states and 59967 transitions. [2019-09-08 08:01:21,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:01:21,178 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2019-09-08 08:01:21,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:21,323 INFO L225 Difference]: With dead ends: 42274 [2019-09-08 08:01:21,323 INFO L226 Difference]: Without dead ends: 27736 [2019-09-08 08:01:21,368 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 08:01:21,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27736 states. [2019-09-08 08:01:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27736 to 27734. [2019-09-08 08:01:23,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27734 states. [2019-09-08 08:01:23,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27734 states to 27734 states and 38869 transitions. [2019-09-08 08:01:23,192 INFO L78 Accepts]: Start accepts. Automaton has 27734 states and 38869 transitions. Word has length 109 [2019-09-08 08:01:23,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:23,193 INFO L475 AbstractCegarLoop]: Abstraction has 27734 states and 38869 transitions. [2019-09-08 08:01:23,193 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:01:23,193 INFO L276 IsEmpty]: Start isEmpty. Operand 27734 states and 38869 transitions. [2019-09-08 08:01:23,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-08 08:01:23,195 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:23,195 INFO L399 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] [2019-09-08 08:01:23,196 INFO L418 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:23,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:23,196 INFO L82 PathProgramCache]: Analyzing trace with hash -191907264, now seen corresponding path program 1 times [2019-09-08 08:01:23,196 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:23,196 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:23,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:23,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:23,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:23,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:23,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-09-08 08:01:23,601 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 08:01:23,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 08:01:23,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-09-08 08:01:23,602 INFO L87 Difference]: Start difference. First operand 27734 states and 38869 transitions. Second operand 15 states. [2019-09-08 08:01:24,236 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-09-08 08:01:34,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:34,711 INFO L93 Difference]: Finished difference Result 71786 states and 110415 transitions. [2019-09-08 08:01:34,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2019-09-08 08:01:34,712 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2019-09-08 08:01:34,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:34,991 INFO L225 Difference]: With dead ends: 71786 [2019-09-08 08:01:34,992 INFO L226 Difference]: Without dead ends: 44104 [2019-09-08 08:01:35,079 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2096 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1250, Invalid=4450, Unknown=0, NotChecked=0, Total=5700 [2019-09-08 08:01:35,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44104 states. [2019-09-08 08:01:38,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44104 to 27926. [2019-09-08 08:01:38,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27926 states. [2019-09-08 08:01:38,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27926 states to 27926 states and 38933 transitions. [2019-09-08 08:01:38,567 INFO L78 Accepts]: Start accepts. Automaton has 27926 states and 38933 transitions. Word has length 109 [2019-09-08 08:01:38,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:38,568 INFO L475 AbstractCegarLoop]: Abstraction has 27926 states and 38933 transitions. [2019-09-08 08:01:38,568 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 08:01:38,568 INFO L276 IsEmpty]: Start isEmpty. Operand 27926 states and 38933 transitions. [2019-09-08 08:01:38,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-08 08:01:38,570 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:38,570 INFO L399 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] [2019-09-08 08:01:38,570 INFO L418 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:38,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1706333516, now seen corresponding path program 1 times [2019-09-08 08:01:38,571 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:38,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:38,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:38,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:38,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:38,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:38,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:38,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 08:01:38,686 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 08:01:38,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 08:01:38,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 08:01:38,687 INFO L87 Difference]: Start difference. First operand 27926 states and 38933 transitions. Second operand 9 states. [2019-09-08 08:01:40,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:40,893 INFO L93 Difference]: Finished difference Result 67941 states and 93764 transitions. [2019-09-08 08:01:40,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 08:01:40,894 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2019-09-08 08:01:40,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:41,049 INFO L225 Difference]: With dead ends: 67941 [2019-09-08 08:01:41,049 INFO L226 Difference]: Without dead ends: 40067 [2019-09-08 08:01:41,105 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2019-09-08 08:01:41,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40067 states. [2019-09-08 08:01:44,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40067 to 27977. [2019-09-08 08:01:44,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27977 states. [2019-09-08 08:01:44,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27977 states to 27977 states and 38998 transitions. [2019-09-08 08:01:44,201 INFO L78 Accepts]: Start accepts. Automaton has 27977 states and 38998 transitions. Word has length 109 [2019-09-08 08:01:44,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:44,202 INFO L475 AbstractCegarLoop]: Abstraction has 27977 states and 38998 transitions. [2019-09-08 08:01:44,202 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 08:01:44,202 INFO L276 IsEmpty]: Start isEmpty. Operand 27977 states and 38998 transitions. [2019-09-08 08:01:44,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-08 08:01:44,204 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:44,204 INFO L399 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] [2019-09-08 08:01:44,204 INFO L418 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:44,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:44,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1806101332, now seen corresponding path program 1 times [2019-09-08 08:01:44,205 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:44,205 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:44,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:44,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:44,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:44,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:44,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:44,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:01:44,341 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:01:44,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:01:44,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:01:44,342 INFO L87 Difference]: Start difference. First operand 27977 states and 38998 transitions. Second operand 5 states. [2019-09-08 08:01:47,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:47,325 INFO L93 Difference]: Finished difference Result 69438 states and 97255 transitions. [2019-09-08 08:01:47,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:01:47,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2019-09-08 08:01:47,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:47,492 INFO L225 Difference]: With dead ends: 69438 [2019-09-08 08:01:47,492 INFO L226 Difference]: Without dead ends: 41520 [2019-09-08 08:01:47,545 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-08 08:01:47,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41520 states. [2019-09-08 08:01:50,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41520 to 40764. [2019-09-08 08:01:50,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40764 states. [2019-09-08 08:01:50,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40764 states to 40764 states and 56380 transitions. [2019-09-08 08:01:50,098 INFO L78 Accepts]: Start accepts. Automaton has 40764 states and 56380 transitions. Word has length 110 [2019-09-08 08:01:50,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:50,099 INFO L475 AbstractCegarLoop]: Abstraction has 40764 states and 56380 transitions. [2019-09-08 08:01:50,099 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:01:50,099 INFO L276 IsEmpty]: Start isEmpty. Operand 40764 states and 56380 transitions. [2019-09-08 08:01:50,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-08 08:01:50,100 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:50,101 INFO L399 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] [2019-09-08 08:01:50,101 INFO L418 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:50,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:50,101 INFO L82 PathProgramCache]: Analyzing trace with hash -158676371, now seen corresponding path program 1 times [2019-09-08 08:01:50,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:50,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:50,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:50,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:50,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:50,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:50,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:50,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 08:01:50,217 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 08:01:50,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 08:01:50,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 08:01:50,218 INFO L87 Difference]: Start difference. First operand 40764 states and 56380 transitions. Second operand 8 states. [2019-09-08 08:01:54,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:54,029 INFO L93 Difference]: Finished difference Result 49748 states and 73273 transitions. [2019-09-08 08:01:54,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 08:01:54,030 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2019-09-08 08:01:54,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:54,259 INFO L225 Difference]: With dead ends: 49748 [2019-09-08 08:01:54,259 INFO L226 Difference]: Without dead ends: 49746 [2019-09-08 08:01:54,290 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-09-08 08:01:54,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49746 states. [2019-09-08 08:01:56,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49746 to 44652. [2019-09-08 08:01:56,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44652 states. [2019-09-08 08:01:57,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44652 states to 44652 states and 60396 transitions. [2019-09-08 08:01:57,048 INFO L78 Accepts]: Start accepts. Automaton has 44652 states and 60396 transitions. Word has length 110 [2019-09-08 08:01:57,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:57,049 INFO L475 AbstractCegarLoop]: Abstraction has 44652 states and 60396 transitions. [2019-09-08 08:01:57,049 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 08:01:57,049 INFO L276 IsEmpty]: Start isEmpty. Operand 44652 states and 60396 transitions. [2019-09-08 08:01:57,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-09-08 08:01:57,051 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:57,051 INFO L399 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] [2019-09-08 08:01:57,051 INFO L418 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:57,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:57,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1797355689, now seen corresponding path program 1 times [2019-09-08 08:01:57,052 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:57,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:57,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:57,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:57,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:57,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:57,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:01:57,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 08:01:57,164 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 08:01:57,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 08:01:57,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 08:01:57,165 INFO L87 Difference]: Start difference. First operand 44652 states and 60396 transitions. Second operand 9 states. [2019-09-08 08:01:59,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:59,978 INFO L93 Difference]: Finished difference Result 85213 states and 116115 transitions. [2019-09-08 08:01:59,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 08:01:59,978 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2019-09-08 08:01:59,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:00,187 INFO L225 Difference]: With dead ends: 85213 [2019-09-08 08:02:00,187 INFO L226 Difference]: Without dead ends: 54173 [2019-09-08 08:02:00,261 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2019-09-08 08:02:00,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54173 states. [2019-09-08 08:02:04,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54173 to 44687. [2019-09-08 08:02:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44687 states. [2019-09-08 08:02:04,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44687 states to 44687 states and 60439 transitions. [2019-09-08 08:02:04,487 INFO L78 Accepts]: Start accepts. Automaton has 44687 states and 60439 transitions. Word has length 111 [2019-09-08 08:02:04,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:04,487 INFO L475 AbstractCegarLoop]: Abstraction has 44687 states and 60439 transitions. [2019-09-08 08:02:04,487 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 08:02:04,487 INFO L276 IsEmpty]: Start isEmpty. Operand 44687 states and 60439 transitions. [2019-09-08 08:02:04,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-08 08:02:04,489 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:04,489 INFO L399 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] [2019-09-08 08:02:04,489 INFO L418 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:04,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:04,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1580659, now seen corresponding path program 1 times [2019-09-08 08:02:04,490 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:04,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:04,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:04,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:04,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:02:04,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:02:04,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:02:04,604 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:02:04,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:02:04,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:02:04,605 INFO L87 Difference]: Start difference. First operand 44687 states and 60439 transitions. Second operand 5 states. [2019-09-08 08:02:07,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:07,541 INFO L93 Difference]: Finished difference Result 93574 states and 126812 transitions. [2019-09-08 08:02:07,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:02:07,541 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-09-08 08:02:07,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:07,797 INFO L225 Difference]: With dead ends: 93574 [2019-09-08 08:02:07,797 INFO L226 Difference]: Without dead ends: 62522 [2019-09-08 08:02:07,885 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 08:02:07,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62522 states. [2019-09-08 08:02:13,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62522 to 62517. [2019-09-08 08:02:13,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62517 states. [2019-09-08 08:02:13,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62517 states to 62517 states and 83484 transitions. [2019-09-08 08:02:13,571 INFO L78 Accepts]: Start accepts. Automaton has 62517 states and 83484 transitions. Word has length 112 [2019-09-08 08:02:13,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:13,571 INFO L475 AbstractCegarLoop]: Abstraction has 62517 states and 83484 transitions. [2019-09-08 08:02:13,571 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:02:13,571 INFO L276 IsEmpty]: Start isEmpty. Operand 62517 states and 83484 transitions. [2019-09-08 08:02:13,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-09-08 08:02:13,589 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:13,590 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 08:02:13,590 INFO L418 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:13,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:13,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1267773895, now seen corresponding path program 1 times [2019-09-08 08:02:13,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:13,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:13,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:13,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:13,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:13,690 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-09-08 08:02:13,690 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 08:02:13,690 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 08:02:13,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 08:02:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:13,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 27 conjunts are in the unsatisfiable core [2019-09-08 08:02:13,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 08:02:14,399 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-09-08 08:02:14,413 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 08:02:14,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [5] total 16 [2019-09-08 08:02:14,416 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 08:02:14,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 08:02:14,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2019-09-08 08:02:14,417 INFO L87 Difference]: Start difference. First operand 62517 states and 83484 transitions. Second operand 16 states. [2019-09-08 08:02:21,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:21,655 INFO L93 Difference]: Finished difference Result 108306 states and 144449 transitions. [2019-09-08 08:02:21,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-09-08 08:02:21,656 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 168 [2019-09-08 08:02:21,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:21,818 INFO L225 Difference]: With dead ends: 108306 [2019-09-08 08:02:21,818 INFO L226 Difference]: Without dead ends: 45888 [2019-09-08 08:02:21,966 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 176 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=463, Invalid=1343, Unknown=0, NotChecked=0, Total=1806 [2019-09-08 08:02:22,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45888 states. [2019-09-08 08:02:25,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45888 to 43338. [2019-09-08 08:02:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43338 states. [2019-09-08 08:02:25,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43338 states to 43338 states and 57219 transitions. [2019-09-08 08:02:25,850 INFO L78 Accepts]: Start accepts. Automaton has 43338 states and 57219 transitions. Word has length 168 [2019-09-08 08:02:25,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:25,850 INFO L475 AbstractCegarLoop]: Abstraction has 43338 states and 57219 transitions. [2019-09-08 08:02:25,850 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 08:02:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 43338 states and 57219 transitions. [2019-09-08 08:02:25,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-09-08 08:02:25,864 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:25,864 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 08:02:25,865 INFO L418 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:25,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:25,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1152511156, now seen corresponding path program 1 times [2019-09-08 08:02:25,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:25,866 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:25,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:25,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:25,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:25,991 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-09-08 08:02:25,991 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 08:02:25,991 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 08:02:26,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 08:02:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:26,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 27 conjunts are in the unsatisfiable core [2019-09-08 08:02:26,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 08:02:26,661 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-08 08:02:26,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 08:02:26,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 17 [2019-09-08 08:02:26,670 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 08:02:26,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 08:02:26,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2019-09-08 08:02:26,671 INFO L87 Difference]: Start difference. First operand 43338 states and 57219 transitions. Second operand 17 states. [2019-09-08 08:02:36,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:36,233 INFO L93 Difference]: Finished difference Result 136222 states and 181264 transitions. [2019-09-08 08:02:36,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-09-08 08:02:36,233 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 170 [2019-09-08 08:02:36,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:36,492 INFO L225 Difference]: With dead ends: 136222 [2019-09-08 08:02:36,492 INFO L226 Difference]: Without dead ends: 93004 [2019-09-08 08:02:36,561 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=513, Invalid=1557, Unknown=0, NotChecked=0, Total=2070 [2019-09-08 08:02:36,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93004 states. [2019-09-08 08:02:41,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93004 to 90534. [2019-09-08 08:02:41,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90534 states. [2019-09-08 08:02:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90534 states to 90534 states and 118644 transitions. [2019-09-08 08:02:42,062 INFO L78 Accepts]: Start accepts. Automaton has 90534 states and 118644 transitions. Word has length 170 [2019-09-08 08:02:42,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:42,063 INFO L475 AbstractCegarLoop]: Abstraction has 90534 states and 118644 transitions. [2019-09-08 08:02:42,063 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 08:02:42,063 INFO L276 IsEmpty]: Start isEmpty. Operand 90534 states and 118644 transitions. [2019-09-08 08:02:42,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-09-08 08:02:42,082 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:42,082 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 08:02:42,082 INFO L418 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:42,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:42,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1021381694, now seen corresponding path program 1 times [2019-09-08 08:02:42,083 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:42,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:42,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:42,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:42,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:42,509 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 08:02:42,509 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 08:02:42,509 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 08:02:42,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 08:02:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:43,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 27 conjunts are in the unsatisfiable core [2019-09-08 08:02:43,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 08:02:43,694 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-09-08 08:02:43,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 08:02:43,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [18] total 32 [2019-09-08 08:02:43,699 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-09-08 08:02:43,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-09-08 08:02:43,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2019-09-08 08:02:43,700 INFO L87 Difference]: Start difference. First operand 90534 states and 118644 transitions. Second operand 32 states. [2019-09-08 08:02:55,655 WARN L188 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2019-09-08 08:03:04,828 WARN L188 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2019-09-08 08:04:19,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:04:19,603 INFO L93 Difference]: Finished difference Result 680138 states and 956274 transitions. [2019-09-08 08:04:19,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2019-09-08 08:04:19,603 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 170 [2019-09-08 08:04:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:04:21,320 INFO L225 Difference]: With dead ends: 680138 [2019-09-08 08:04:21,321 INFO L226 Difference]: Without dead ends: 641688 [2019-09-08 08:04:21,529 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 309 SyntacticMatches, 4 SemanticMatches, 305 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42965 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=10503, Invalid=83439, Unknown=0, NotChecked=0, Total=93942 [2019-09-08 08:04:21,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641688 states. [2019-09-08 08:05:12,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641688 to 601046. [2019-09-08 08:05:12,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601046 states. [2019-09-08 08:05:14,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601046 states to 601046 states and 806528 transitions. [2019-09-08 08:05:14,970 INFO L78 Accepts]: Start accepts. Automaton has 601046 states and 806528 transitions. Word has length 170 [2019-09-08 08:05:14,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:05:14,971 INFO L475 AbstractCegarLoop]: Abstraction has 601046 states and 806528 transitions. [2019-09-08 08:05:14,971 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-09-08 08:05:14,971 INFO L276 IsEmpty]: Start isEmpty. Operand 601046 states and 806528 transitions. [2019-09-08 08:05:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-09-08 08:05:15,000 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:05:15,001 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 08:05:15,001 INFO L418 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:05:15,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:05:15,001 INFO L82 PathProgramCache]: Analyzing trace with hash 568246710, now seen corresponding path program 1 times [2019-09-08 08:05:15,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:05:15,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:05:15,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:05:15,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:05:15,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:05:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:05:15,311 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 08:05:15,312 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 08:05:15,312 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 08:05:15,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:05:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:05:15,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 27 conjunts are in the unsatisfiable core [2019-09-08 08:05:15,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 08:05:15,948 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-09-08 08:05:15,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 08:05:15,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [16] total 29 [2019-09-08 08:05:15,954 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-08 08:05:15,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-08 08:05:15,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=702, Unknown=0, NotChecked=0, Total=812 [2019-09-08 08:05:15,955 INFO L87 Difference]: Start difference. First operand 601046 states and 806528 transitions. Second operand 29 states. [2019-09-08 08:06:56,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:06:56,273 INFO L93 Difference]: Finished difference Result 1168858 states and 1627778 transitions. [2019-09-08 08:06:56,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2019-09-08 08:06:56,274 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 170 [2019-09-08 08:06:56,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:07:00,173 INFO L225 Difference]: With dead ends: 1168858 [2019-09-08 08:07:00,173 INFO L226 Difference]: Without dead ends: 955624 [2019-09-08 08:07:00,654 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 228 SyntacticMatches, 3 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7996 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2581, Invalid=18299, Unknown=0, NotChecked=0, Total=20880 [2019-09-08 08:07:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955624 states. [2019-09-08 08:08:34,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955624 to 905526. [2019-09-08 08:08:34,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905526 states. [2019-09-08 08:08:51,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905526 states to 905526 states and 1219260 transitions. [2019-09-08 08:08:51,196 INFO L78 Accepts]: Start accepts. Automaton has 905526 states and 1219260 transitions. Word has length 170 [2019-09-08 08:08:51,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:08:51,196 INFO L475 AbstractCegarLoop]: Abstraction has 905526 states and 1219260 transitions. [2019-09-08 08:08:51,197 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-09-08 08:08:51,197 INFO L276 IsEmpty]: Start isEmpty. Operand 905526 states and 1219260 transitions. [2019-09-08 08:08:51,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-09-08 08:08:51,232 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:08:51,232 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 08:08:51,233 INFO L418 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:08:51,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:08:51,233 INFO L82 PathProgramCache]: Analyzing trace with hash -264747722, now seen corresponding path program 1 times [2019-09-08 08:08:51,233 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:08:51,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:08:51,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:08:51,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:08:51,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:08:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:08:51,457 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-08 08:08:51,458 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 08:08:51,458 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 08:08:51,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:08:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:08:51,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 27 conjunts are in the unsatisfiable core [2019-09-08 08:08:51,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 08:08:52,154 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 08:08:52,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 08:08:52,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [14] total 29 [2019-09-08 08:08:52,160 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-08 08:08:52,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-08 08:08:52,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2019-09-08 08:08:52,161 INFO L87 Difference]: Start difference. First operand 905526 states and 1219260 transitions. Second operand 29 states. [2019-09-08 08:08:57,933 WARN L188 SmtUtils]: Spent 2.92 s on a formula simplification that was a NOOP. DAG size: 22