java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 18:00:51,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:00:51,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:00:51,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:00:51,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:00:51,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:00:51,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:00:51,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:00:51,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:00:51,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:00:51,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:00:51,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:00:51,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:00:51,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:00:51,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:00:51,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:00:51,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:00:51,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:00:51,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:00:51,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:00:51,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:00:51,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:00:51,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:00:51,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:00:51,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 18:00:51,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:00:51,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:00:51,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:00:51,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:00:51,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:00:51,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:00:51,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:00:51,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:00:51,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:00:51,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:00:51,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:00:51,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 18:00:51,321 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:00:51,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:00:51,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:00:51,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:00:51,324 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:00:51,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:00:51,325 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:00:51,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:00:51,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:00:51,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:00:51,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:00:51,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:00:51,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:00:51,327 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:00:51,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:00:51,328 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:00:51,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:00:51,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:00:51,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:00:51,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:00:51,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:00:51,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:00:51,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:00:51,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:00:51,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:00:51,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:00:51,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:00:51,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:00:51,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:00:51,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:00:51,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:00:51,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:00:51,616 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:00:51,616 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:00:51,617 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label54.c [2019-10-13 18:00:51,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ad38ece7/f77e604dffd8441186ce9c03347e9c97/FLAG739e5ce83 [2019-10-13 18:00:52,329 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:00:52,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label54.c [2019-10-13 18:00:52,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ad38ece7/f77e604dffd8441186ce9c03347e9c97/FLAG739e5ce83 [2019-10-13 18:00:52,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ad38ece7/f77e604dffd8441186ce9c03347e9c97 [2019-10-13 18:00:52,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:00:52,508 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:00:52,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:00:52,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:00:52,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:00:52,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:00:52" (1/1) ... [2019-10-13 18:00:52,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2022d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:52, skipping insertion in model container [2019-10-13 18:00:52,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:00:52" (1/1) ... [2019-10-13 18:00:52,525 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:00:52,586 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:00:53,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:00:53,331 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:00:53,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:00:53,605 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:00:53,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:53 WrapperNode [2019-10-13 18:00:53,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:00:53,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:00:53,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:00:53,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:00:53,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:53" (1/1) ... [2019-10-13 18:00:53,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:53" (1/1) ... [2019-10-13 18:00:53,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:53" (1/1) ... [2019-10-13 18:00:53,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:53" (1/1) ... [2019-10-13 18:00:53,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:53" (1/1) ... [2019-10-13 18:00:53,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:53" (1/1) ... [2019-10-13 18:00:53,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:53" (1/1) ... [2019-10-13 18:00:53,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:00:53,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:00:53,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:00:53,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:00:53,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:00:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:00:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:00:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-13 18:00:53,853 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:00:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-13 18:00:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:00:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:00:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 18:00:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:00:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:00:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:00:55,621 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:00:55,622 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 18:00:55,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:00:55 BoogieIcfgContainer [2019-10-13 18:00:55,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:00:55,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:00:55,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:00:55,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:00:55,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:00:52" (1/3) ... [2019-10-13 18:00:55,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128c6c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:00:55, skipping insertion in model container [2019-10-13 18:00:55,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:53" (2/3) ... [2019-10-13 18:00:55,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128c6c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:00:55, skipping insertion in model container [2019-10-13 18:00:55,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:00:55" (3/3) ... [2019-10-13 18:00:55,637 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label54.c [2019-10-13 18:00:55,648 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:00:55,658 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:00:55,672 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:00:55,703 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:00:55,703 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:00:55,703 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:00:55,704 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:00:55,704 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:00:55,704 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:00:55,704 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:00:55,704 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:00:55,732 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2019-10-13 18:00:55,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 18:00:55,740 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:00:55,742 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:00:55,744 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:00:55,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:00:55,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1043442102, now seen corresponding path program 1 times [2019-10-13 18:00:55,761 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:00:55,761 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140253180] [2019-10-13 18:00:55,761 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:00:55,762 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:00:55,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:00:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:00:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:00:56,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:00:56,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140253180] [2019-10-13 18:00:56,269 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:00:56,269 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 18:00:56,269 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401308836] [2019-10-13 18:00:56,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:00:56,275 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:00:56,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:00:56,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:00:56,293 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 5 states. [2019-10-13 18:00:59,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:00:59,525 INFO L93 Difference]: Finished difference Result 1006 states and 1797 transitions. [2019-10-13 18:00:59,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 18:00:59,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-10-13 18:00:59,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:00:59,550 INFO L225 Difference]: With dead ends: 1006 [2019-10-13 18:00:59,550 INFO L226 Difference]: Without dead ends: 630 [2019-10-13 18:00:59,562 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:00:59,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2019-10-13 18:00:59,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 620. [2019-10-13 18:00:59,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-13 18:00:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 915 transitions. [2019-10-13 18:00:59,665 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 915 transitions. Word has length 43 [2019-10-13 18:00:59,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:00:59,666 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 915 transitions. [2019-10-13 18:00:59,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:00:59,667 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 915 transitions. [2019-10-13 18:00:59,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-13 18:00:59,679 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:00:59,680 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:00:59,680 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:00:59,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:00:59,681 INFO L82 PathProgramCache]: Analyzing trace with hash 2051275321, now seen corresponding path program 1 times [2019-10-13 18:00:59,681 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:00:59,681 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59558220] [2019-10-13 18:00:59,681 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:00:59,682 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:00:59,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:00:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:00:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:00,122 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:01:00,122 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59558220] [2019-10-13 18:01:00,122 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248424843] [2019-10-13 18:01:00,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:01:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:00,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 18:01:00,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 18:01:00,377 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 18:01:00,434 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:01:00,435 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-13 18:01:00,435 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2019-10-13 18:01:00,435 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708513867] [2019-10-13 18:01:00,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:01:00,439 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:01:00,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:01:00,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 18:01:00,440 INFO L87 Difference]: Start difference. First operand 620 states and 915 transitions. Second operand 5 states. [2019-10-13 18:01:02,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:01:02,049 INFO L93 Difference]: Finished difference Result 1455 states and 2118 transitions. [2019-10-13 18:01:02,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 18:01:02,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2019-10-13 18:01:02,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:01:02,056 INFO L225 Difference]: With dead ends: 1455 [2019-10-13 18:01:02,056 INFO L226 Difference]: Without dead ends: 841 [2019-10-13 18:01:02,059 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-13 18:01:02,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2019-10-13 18:01:02,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 822. [2019-10-13 18:01:02,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 822 states. [2019-10-13 18:01:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1137 transitions. [2019-10-13 18:01:02,120 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1137 transitions. Word has length 116 [2019-10-13 18:01:02,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:01:02,120 INFO L462 AbstractCegarLoop]: Abstraction has 822 states and 1137 transitions. [2019-10-13 18:01:02,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:01:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1137 transitions. [2019-10-13 18:01:02,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-13 18:01:02,125 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:01:02,127 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 18:01:02,331 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:01:02,331 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:01:02,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:01:02,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1378192135, now seen corresponding path program 1 times [2019-10-13 18:01:02,332 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:01:02,332 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690235716] [2019-10-13 18:01:02,332 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:01:02,332 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:01:02,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:01:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 18:01:02,728 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690235716] [2019-10-13 18:01:02,728 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386990026] [2019-10-13 18:01:02,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:01:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:02,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 18:01:02,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 18:01:02,892 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-13 18:01:02,893 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-13 18:01:02,893 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2019-10-13 18:01:02,894 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321507631] [2019-10-13 18:01:02,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:01:02,895 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:01:02,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:01:02,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-13 18:01:02,895 INFO L87 Difference]: Start difference. First operand 822 states and 1137 transitions. Second operand 5 states. [2019-10-13 18:01:04,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:01:04,639 INFO L93 Difference]: Finished difference Result 2477 states and 3590 transitions. [2019-10-13 18:01:04,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 18:01:04,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 188 [2019-10-13 18:01:04,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:01:04,651 INFO L225 Difference]: With dead ends: 2477 [2019-10-13 18:01:04,651 INFO L226 Difference]: Without dead ends: 1661 [2019-10-13 18:01:04,654 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 18:01:04,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2019-10-13 18:01:04,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1619. [2019-10-13 18:01:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2019-10-13 18:01:04,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2197 transitions. [2019-10-13 18:01:04,716 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2197 transitions. Word has length 188 [2019-10-13 18:01:04,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:01:04,717 INFO L462 AbstractCegarLoop]: Abstraction has 1619 states and 2197 transitions. [2019-10-13 18:01:04,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:01:04,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2197 transitions. [2019-10-13 18:01:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 18:01:04,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:01:04,728 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:01:04,939 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:01:04,940 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:01:04,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:01:04,941 INFO L82 PathProgramCache]: Analyzing trace with hash -859364105, now seen corresponding path program 1 times [2019-10-13 18:01:04,941 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:01:04,941 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008034827] [2019-10-13 18:01:04,941 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:01:04,942 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:01:04,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:01:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:05,294 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 18:01:05,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008034827] [2019-10-13 18:01:05,295 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402309760] [2019-10-13 18:01:05,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:01:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:05,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 18:01:05,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 18:01:05,445 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 18:01:05,445 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 18:01:05,445 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2019-10-13 18:01:05,446 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294042596] [2019-10-13 18:01:05,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 18:01:05,447 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:01:05,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 18:01:05,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-13 18:01:05,448 INFO L87 Difference]: Start difference. First operand 1619 states and 2197 transitions. Second operand 8 states. [2019-10-13 18:01:08,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:01:08,410 INFO L93 Difference]: Finished difference Result 4874 states and 7373 transitions. [2019-10-13 18:01:08,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 18:01:08,410 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2019-10-13 18:01:08,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:01:08,433 INFO L225 Difference]: With dead ends: 4874 [2019-10-13 18:01:08,434 INFO L226 Difference]: Without dead ends: 3449 [2019-10-13 18:01:08,440 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2019-10-13 18:01:08,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3449 states. [2019-10-13 18:01:08,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3449 to 3401. [2019-10-13 18:01:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3401 states. [2019-10-13 18:01:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3401 states to 3401 states and 4513 transitions. [2019-10-13 18:01:08,563 INFO L78 Accepts]: Start accepts. Automaton has 3401 states and 4513 transitions. Word has length 190 [2019-10-13 18:01:08,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:01:08,564 INFO L462 AbstractCegarLoop]: Abstraction has 3401 states and 4513 transitions. [2019-10-13 18:01:08,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 18:01:08,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3401 states and 4513 transitions. [2019-10-13 18:01:08,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-13 18:01:08,570 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:01:08,570 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 18:01:08,774 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:01:08,775 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:01:08,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:01:08,775 INFO L82 PathProgramCache]: Analyzing trace with hash -679917229, now seen corresponding path program 1 times [2019-10-13 18:01:08,776 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:01:08,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791285967] [2019-10-13 18:01:08,776 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:01:08,777 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:01:08,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:01:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:09,135 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-10-13 18:01:09,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791285967] [2019-10-13 18:01:09,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972214571] [2019-10-13 18:01:09,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:01:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:01:09,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 18:01:09,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 18:01:09,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,337 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,340 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,348 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,369 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,377 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,379 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,380 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,385 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,389 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:09,395 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:01:11,513 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_~a23~0_479 Int)) (let ((.cse1 (div (* v_~a23~0_479 9) 10))) (let ((.cse0 (mod (+ .cse1 29) 90))) (and (not (= .cse0 0)) (< (+ .cse1 58980) 0) (<= 0 (* 9 v_~a23~0_479)) (<= |c_old(~a23~0)| v_~a23~0_479) (<= (+ c_~a23~0 42) .cse0) (not (= (mod (+ .cse1 30) 90) 0)) (< (+ .cse1 58979) 0))))) (exists ((v_~a23~0_479 Int)) (let ((.cse3 (* v_~a23~0_479 9))) (let ((.cse2 (div .cse3 10))) (let ((.cse4 (mod (+ .cse2 30) 90))) (and (< (+ .cse2 58980) 0) (not (= 0 (mod .cse3 10))) (<= |c_old(~a23~0)| v_~a23~0_479) (<= (+ c_~a23~0 42) .cse4) (< (* 9 v_~a23~0_479) 0) (not (= .cse4 0)) (= (mod (+ .cse2 29) 90) 0)))))) (exists ((v_~a23~0_479 Int)) (let ((.cse7 (* v_~a23~0_479 9))) (let ((.cse6 (div .cse7 10))) (let ((.cse5 (mod (+ .cse6 29) 90))) (and (<= c_~a23~0 (+ .cse5 48)) (<= 0 (+ .cse6 58980)) (<= |c_old(~a23~0)| v_~a23~0_479) (= .cse5 0) (= 0 (mod .cse7 10))))))) (exists ((v_~a23~0_479 Int)) (let ((.cse9 (* v_~a23~0_479 9))) (let ((.cse8 (div .cse9 10))) (let ((.cse10 (mod (+ .cse8 30) 90))) (and (not (= (mod (+ .cse8 29) 90) 0)) (< (+ .cse8 58980) 0) (not (= 0 (mod .cse9 10))) (<= |c_old(~a23~0)| v_~a23~0_479) (<= (+ c_~a23~0 42) .cse10) (< (* 9 v_~a23~0_479) 0) (not (= .cse10 0)) (< (+ .cse8 58979) 0)))))) (exists ((v_~a23~0_479 Int)) (let ((.cse12 (div (* v_~a23~0_479 9) 10))) (let ((.cse11 (mod (+ .cse12 29) 90))) (and (<= c_~a23~0 (+ .cse11 48)) (<= 0 (* 9 v_~a23~0_479)) (<= 0 (+ .cse12 58980)) (<= |c_old(~a23~0)| v_~a23~0_479) (= .cse11 0))))) (exists ((v_~a23~0_479 Int)) (let ((.cse14 (* v_~a23~0_479 9))) (let ((.cse13 (div .cse14 10))) (and (<= c_~a23~0 (+ (mod (+ .cse13 29) 90) 48)) (<= 0 (+ .cse13 58979)) (= (mod (+ .cse13 30) 90) 0) (<= |c_old(~a23~0)| v_~a23~0_479) (= 0 (mod .cse14 10)))))) (exists ((v_~a23~0_479 Int)) (let ((.cse17 (* v_~a23~0_479 9))) (let ((.cse16 (div .cse17 10))) (let ((.cse15 (mod (+ .cse16 29) 90))) (and (not (= .cse15 0)) (= (mod (+ .cse16 30) 90) 0) (<= |c_old(~a23~0)| v_~a23~0_479) (<= (+ c_~a23~0 42) .cse15) (< (+ .cse16 58979) 0) (= 0 (mod .cse17 10))))))) (exists ((v_~a23~0_479 Int)) (let ((.cse20 (* v_~a23~0_479 9))) (let ((.cse19 (div .cse20 10))) (let ((.cse18 (mod (+ .cse19 29) 90))) (and (<= c_~a23~0 (+ .cse18 48)) (< (+ .cse19 58980) 0) (<= |c_old(~a23~0)| v_~a23~0_479) (not (= (mod (+ .cse19 30) 90) 0)) (= .cse18 0) (= 0 (mod .cse20 10))))))) (exists ((v_~a23~0_479 Int)) (let ((.cse22 (* v_~a23~0_479 9))) (let ((.cse23 (div .cse22 10))) (let ((.cse21 (mod (+ .cse23 30) 90))) (and (= .cse21 0) (not (= 0 (mod .cse22 10))) (<= |c_old(~a23~0)| v_~a23~0_479) (< (* 9 v_~a23~0_479) 0) (= (mod (+ .cse23 29) 90) 0) (<= c_~a23~0 (+ .cse21 48))))))) (exists ((v_~a23~0_479 Int)) (let ((.cse25 (div (* v_~a23~0_479 9) 10))) (let ((.cse24 (mod (+ .cse25 29) 90))) (and (not (= .cse24 0)) (= (mod (+ .cse25 30) 90) 0) (<= 0 (* 9 v_~a23~0_479)) (<= |c_old(~a23~0)| v_~a23~0_479) (<= (+ c_~a23~0 42) .cse24) (< (+ .cse25 58979) 0))))) (exists ((v_~a23~0_479 Int)) (let ((.cse27 (div (* v_~a23~0_479 9) 10))) (let ((.cse26 (mod (+ .cse27 29) 90))) (and (<= c_~a23~0 (+ .cse26 48)) (< (+ .cse27 58980) 0) (<= 0 (* 9 v_~a23~0_479)) (<= |c_old(~a23~0)| v_~a23~0_479) (not (= (mod (+ .cse27 30) 90) 0)) (= .cse26 0))))) (exists ((v_~a23~0_479 Int)) (let ((.cse30 (* v_~a23~0_479 9))) (let ((.cse29 (div .cse30 10))) (let ((.cse28 (mod (+ .cse29 29) 90))) (and (not (= .cse28 0)) (<= 0 (+ .cse29 58980)) (<= |c_old(~a23~0)| v_~a23~0_479) (<= (+ c_~a23~0 42) .cse28) (< (+ .cse29 58979) 0) (= 0 (mod .cse30 10))))))) (exists ((v_~a23~0_479 Int)) (let ((.cse33 (* v_~a23~0_479 9))) (let ((.cse32 (div .cse33 10))) (let ((.cse31 (mod (+ .cse32 29) 90))) (and (<= c_~a23~0 (+ .cse31 48)) (= (mod (+ .cse32 30) 90) 0) (<= |c_old(~a23~0)| v_~a23~0_479) (= .cse31 0) (= 0 (mod .cse33 10))))))) (exists ((v_~a23~0_479 Int)) (let ((.cse35 (* v_~a23~0_479 9))) (let ((.cse34 (div .cse35 10))) (and (<= c_~a23~0 (+ (mod (+ .cse34 29) 90) 48)) (<= 0 (+ .cse34 58979)) (< (+ .cse34 58980) 0) (<= |c_old(~a23~0)| v_~a23~0_479) (not (= (mod (+ .cse34 30) 90) 0)) (= 0 (mod .cse35 10)))))) (exists ((v_~a23~0_479 Int)) (let ((.cse36 (div (* v_~a23~0_479 9) 10))) (and (<= c_~a23~0 (+ (mod (+ .cse36 29) 90) 48)) (<= 0 (+ .cse36 58979)) (<= 0 (* 9 v_~a23~0_479)) (<= 0 (+ .cse36 58980)) (<= |c_old(~a23~0)| v_~a23~0_479)))) (exists ((v_~a23~0_479 Int)) (let ((.cse38 (* v_~a23~0_479 9))) (let ((.cse37 (div .cse38 10))) (let ((.cse39 (mod (+ .cse37 30) 90))) (and (<= 0 (+ .cse37 58979)) (< (+ .cse37 58980) 0) (not (= 0 (mod .cse38 10))) (<= |c_old(~a23~0)| v_~a23~0_479) (<= (+ c_~a23~0 42) .cse39) (< (* 9 v_~a23~0_479) 0) (not (= .cse39 0))))))) (exists ((v_~a23~0_479 Int)) (let ((.cse42 (* v_~a23~0_479 9))) (let ((.cse41 (div .cse42 10))) (let ((.cse40 (mod (+ .cse41 29) 90))) (and (not (= .cse40 0)) (< (+ .cse41 58980) 0) (<= |c_old(~a23~0)| v_~a23~0_479) (<= (+ c_~a23~0 42) .cse40) (not (= (mod (+ .cse41 30) 90) 0)) (< (+ .cse41 58979) 0) (= 0 (mod .cse42 10))))))) (exists ((v_~a23~0_479 Int)) (let ((.cse43 (div (* v_~a23~0_479 9) 10))) (and (<= c_~a23~0 (+ (mod (+ .cse43 29) 90) 48)) (<= 0 (+ .cse43 58979)) (< (+ .cse43 58980) 0) (<= 0 (* 9 v_~a23~0_479)) (<= |c_old(~a23~0)| v_~a23~0_479) (not (= (mod (+ .cse43 30) 90) 0))))) (exists ((v_~a23~0_479 Int)) (let ((.cse46 (* v_~a23~0_479 9))) (let ((.cse44 (div .cse46 10))) (let ((.cse45 (mod (+ .cse44 30) 90))) (and (not (= (mod (+ .cse44 29) 90) 0)) (= .cse45 0) (not (= 0 (mod .cse46 10))) (<= |c_old(~a23~0)| v_~a23~0_479) (< (* 9 v_~a23~0_479) 0) (< (+ .cse44 58979) 0) (<= c_~a23~0 (+ .cse45 48))))))) (exists ((v_~a23~0_479 Int)) (let ((.cse48 (div (* v_~a23~0_479 9) 10))) (let ((.cse47 (mod (+ .cse48 29) 90))) (and (<= c_~a23~0 (+ .cse47 48)) (= (mod (+ .cse48 30) 90) 0) (<= 0 (* 9 v_~a23~0_479)) (<= |c_old(~a23~0)| v_~a23~0_479) (= .cse47 0))))) (exists ((v_~a23~0_479 Int)) (let ((.cse49 (* v_~a23~0_479 9))) (let ((.cse50 (div .cse49 10))) (and (not (= 0 (mod .cse49 10))) (<= 0 (+ .cse50 58980)) (<= |c_old(~a23~0)| v_~a23~0_479) (< (* 9 v_~a23~0_479) 0) (= (mod (+ .cse50 29) 90) 0) (<= c_~a23~0 (+ (mod (+ .cse50 30) 90) 48)))))) (exists ((v_~a23~0_479 Int)) (let ((.cse52 (* v_~a23~0_479 9))) (let ((.cse51 (div .cse52 10))) (and (<= 0 (+ .cse51 58979)) (not (= 0 (mod .cse52 10))) (<= 0 (+ .cse51 58980)) (<= |c_old(~a23~0)| v_~a23~0_479) (< (* 9 v_~a23~0_479) 0) (<= c_~a23~0 (+ (mod (+ .cse51 30) 90) 48)))))) (exists ((v_~a23~0_479 Int)) (let ((.cse53 (div (* v_~a23~0_479 9) 10))) (and (<= c_~a23~0 (+ (mod (+ .cse53 29) 90) 48)) (<= 0 (+ .cse53 58979)) (= (mod (+ .cse53 30) 90) 0) (<= 0 (* 9 v_~a23~0_479)) (<= |c_old(~a23~0)| v_~a23~0_479)))) (exists ((v_~a23~0_479 Int)) (let ((.cse56 (* v_~a23~0_479 9))) (let ((.cse54 (div .cse56 10))) (let ((.cse55 (mod (+ .cse54 30) 90))) (and (<= 0 (+ .cse54 58979)) (= .cse55 0) (not (= 0 (mod .cse56 10))) (<= |c_old(~a23~0)| v_~a23~0_479) (< (* 9 v_~a23~0_479) 0) (<= c_~a23~0 (+ .cse55 48))))))) (exists ((v_~a23~0_479 Int)) (let ((.cse58 (* v_~a23~0_479 9))) (let ((.cse57 (div .cse58 10))) (and (<= c_~a23~0 (+ (mod (+ .cse57 29) 90) 48)) (<= 0 (+ .cse57 58979)) (<= 0 (+ .cse57 58980)) (<= |c_old(~a23~0)| v_~a23~0_479) (= 0 (mod .cse58 10)))))) (exists ((v_~a23~0_479 Int)) (let ((.cse60 (* v_~a23~0_479 9))) (let ((.cse59 (div .cse60 10))) (and (not (= (mod (+ .cse59 29) 90) 0)) (not (= 0 (mod .cse60 10))) (<= 0 (+ .cse59 58980)) (<= |c_old(~a23~0)| v_~a23~0_479) (< (* 9 v_~a23~0_479) 0) (< (+ .cse59 58979) 0) (<= c_~a23~0 (+ (mod (+ .cse59 30) 90) 48)))))) (exists ((v_~a23~0_479 Int)) (let ((.cse62 (div (* v_~a23~0_479 9) 10))) (let ((.cse61 (mod (+ .cse62 29) 90))) (and (not (= .cse61 0)) (<= 0 (* 9 v_~a23~0_479)) (<= 0 (+ .cse62 58980)) (<= |c_old(~a23~0)| v_~a23~0_479) (<= (+ c_~a23~0 42) .cse61) (< (+ .cse62 58979) 0)))))) is different from true [2019-10-13 18:01:13,590 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_~a23~0_479 Int)) (let ((.cse1 (div (* v_~a23~0_479 9) 10))) (let ((.cse0 (mod (+ .cse1 29) 90))) (and (not (= .cse0 0)) (< (+ .cse1 58980) 0) (<= 0 (* 9 v_~a23~0_479)) (<= |c_old(~a23~0)| v_~a23~0_479) (<= (+ c_~a23~0 42) .cse0) (not (= (mod (+ .cse1 30) 90) 0)) (< (+ .cse1 58979) 0))))) (exists ((v_prenex_16 Int)) (let ((.cse4 (* v_prenex_16 9))) (let ((.cse2 (div .cse4 10))) (let ((.cse3 (mod (+ .cse2 29) 90))) (and (not (= (mod (+ .cse2 30) 90) 0)) (<= |c_old(~a23~0)| v_prenex_16) (< (+ .cse2 58980) 0) (<= (+ c_~a23~0 42) .cse3) (not (= .cse3 0)) (< (+ .cse2 58979) 0) (= 0 (mod .cse4 10))))))) (exists ((v_prenex_24 Int)) (let ((.cse5 (* v_prenex_24 9))) (let ((.cse6 (div .cse5 10))) (and (= 0 (mod .cse5 10)) (<= |c_old(~a23~0)| v_prenex_24) (<= 0 (+ .cse6 58980)) (<= c_~a23~0 (+ (mod (+ .cse6 29) 90) 48)) (<= 0 (+ .cse6 58979)))))) (exists ((v_prenex_23 Int)) (let ((.cse9 (* v_prenex_23 9))) (let ((.cse7 (div .cse9 10))) (let ((.cse8 (mod (+ .cse7 30) 90))) (and (<= 0 (+ .cse7 58979)) (<= |c_old(~a23~0)| v_prenex_23) (<= c_~a23~0 (+ .cse8 48)) (not (= 0 (mod .cse9 10))) (< (* 9 v_prenex_23) 0) (= .cse8 0)))))) (exists ((v_prenex_18 Int)) (let ((.cse12 (* v_prenex_18 9))) (let ((.cse10 (div .cse12 10))) (let ((.cse11 (mod (+ .cse10 30) 90))) (and (not (= (mod (+ .cse10 29) 90) 0)) (= .cse11 0) (< (* 9 v_prenex_18) 0) (<= c_~a23~0 (+ .cse11 48)) (<= |c_old(~a23~0)| v_prenex_18) (not (= 0 (mod .cse12 10))) (< (+ .cse10 58979) 0)))))) (exists ((v_prenex_22 Int)) (let ((.cse13 (div (* v_prenex_22 9) 10))) (and (<= 0 (+ .cse13 58979)) (= (mod (+ .cse13 30) 90) 0) (<= |c_old(~a23~0)| v_prenex_22) (<= c_~a23~0 (+ (mod (+ .cse13 29) 90) 48)) (<= 0 (* 9 v_prenex_22))))) (exists ((v_prenex_2 Int)) (let ((.cse14 (* v_prenex_2 9))) (let ((.cse16 (div .cse14 10))) (let ((.cse15 (mod (+ .cse16 29) 90))) (and (= 0 (mod .cse14 10)) (<= |c_old(~a23~0)| v_prenex_2) (= .cse15 0) (<= 0 (+ .cse16 58980)) (<= c_~a23~0 (+ .cse15 48))))))) (exists ((v_prenex_10 Int)) (let ((.cse17 (div (* v_prenex_10 9) 10))) (let ((.cse18 (mod (+ .cse17 29) 90))) (and (< (+ .cse17 58980) 0) (<= 0 (* 9 v_prenex_10)) (= .cse18 0) (<= |c_old(~a23~0)| v_prenex_10) (not (= (mod (+ .cse17 30) 90) 0)) (<= c_~a23~0 (+ .cse18 48)))))) (exists ((v_prenex_12 Int)) (let ((.cse21 (* v_prenex_12 9))) (let ((.cse20 (div .cse21 10))) (let ((.cse19 (mod (+ .cse20 29) 90))) (and (<= c_~a23~0 (+ .cse19 48)) (<= |c_old(~a23~0)| v_prenex_12) (= (mod (+ .cse20 30) 90) 0) (= .cse19 0) (= 0 (mod .cse21 10))))))) (exists ((v_prenex_8 Int)) (let ((.cse22 (* v_prenex_8 9))) (let ((.cse23 (div .cse22 10))) (let ((.cse24 (mod (+ .cse23 30) 90))) (and (not (= 0 (mod .cse22 10))) (< (* 9 v_prenex_8) 0) (= (mod (+ .cse23 29) 90) 0) (<= c_~a23~0 (+ .cse24 48)) (<= |c_old(~a23~0)| v_prenex_8) (= .cse24 0)))))) (exists ((v_prenex_25 Int)) (let ((.cse25 (* v_prenex_25 9))) (let ((.cse26 (div .cse25 10))) (and (not (= 0 (mod .cse25 10))) (< (+ .cse26 58979) 0) (<= 0 (+ .cse26 58980)) (<= c_~a23~0 (+ (mod (+ .cse26 30) 90) 48)) (<= |c_old(~a23~0)| v_prenex_25) (not (= (mod (+ .cse26 29) 90) 0)) (< (* 9 v_prenex_25) 0))))) (exists ((v_prenex_13 Int)) (let ((.cse28 (* v_prenex_13 9))) (let ((.cse27 (div .cse28 10))) (and (<= 0 (+ .cse27 58979)) (<= |c_old(~a23~0)| v_prenex_13) (< (+ .cse27 58980) 0) (<= c_~a23~0 (+ (mod (+ .cse27 29) 90) 48)) (= 0 (mod .cse28 10)) (not (= (mod (+ .cse27 30) 90) 0)))))) (exists ((v_prenex_7 Int)) (let ((.cse29 (* v_prenex_7 9))) (let ((.cse31 (div .cse29 10))) (let ((.cse30 (mod (+ .cse31 29) 90))) (and (= 0 (mod .cse29 10)) (<= c_~a23~0 (+ .cse30 48)) (not (= (mod (+ .cse31 30) 90) 0)) (<= |c_old(~a23~0)| v_prenex_7) (= .cse30 0) (< (+ .cse31 58980) 0)))))) (exists ((v_prenex_6 Int)) (let ((.cse34 (* v_prenex_6 9))) (let ((.cse32 (div .cse34 10))) (let ((.cse33 (mod (+ .cse32 29) 90))) (and (< (+ .cse32 58979) 0) (<= (+ c_~a23~0 42) .cse33) (= 0 (mod .cse34 10)) (not (= .cse33 0)) (<= |c_old(~a23~0)| v_prenex_6) (= (mod (+ .cse32 30) 90) 0)))))) (exists ((v_prenex_9 Int)) (let ((.cse35 (div (* v_prenex_9 9) 10))) (let ((.cse36 (mod (+ .cse35 29) 90))) (and (<= 0 (* 9 v_prenex_9)) (<= |c_old(~a23~0)| v_prenex_9) (= (mod (+ .cse35 30) 90) 0) (not (= .cse36 0)) (<= (+ c_~a23~0 42) .cse36) (< (+ .cse35 58979) 0))))) (exists ((v_prenex_15 Int)) (let ((.cse38 (* v_prenex_15 9))) (let ((.cse39 (div .cse38 10))) (let ((.cse37 (mod (+ .cse39 30) 90))) (and (<= |c_old(~a23~0)| v_prenex_15) (not (= .cse37 0)) (not (= 0 (mod .cse38 10))) (< (+ .cse39 58980) 0) (<= 0 (+ .cse39 58979)) (<= (+ c_~a23~0 42) .cse37) (< (* 9 v_prenex_15) 0)))))) (exists ((v_prenex_19 Int)) (let ((.cse40 (div (* v_prenex_19 9) 10))) (let ((.cse41 (mod (+ .cse40 29) 90))) (and (= (mod (+ .cse40 30) 90) 0) (= .cse41 0) (<= 0 (* 9 v_prenex_19)) (<= c_~a23~0 (+ .cse41 48)) (<= |c_old(~a23~0)| v_prenex_19))))) (exists ((v_prenex_11 Int)) (let ((.cse44 (* v_prenex_11 9))) (let ((.cse43 (div .cse44 10))) (let ((.cse42 (mod (+ .cse43 29) 90))) (and (not (= .cse42 0)) (<= (+ c_~a23~0 42) .cse42) (<= |c_old(~a23~0)| v_prenex_11) (<= 0 (+ .cse43 58980)) (= 0 (mod .cse44 10)) (< (+ .cse43 58979) 0)))))) (exists ((v_prenex_26 Int)) (let ((.cse45 (div (* v_prenex_26 9) 10))) (let ((.cse46 (mod (+ .cse45 29) 90))) (and (<= |c_old(~a23~0)| v_prenex_26) (<= 0 (+ .cse45 58980)) (< (+ .cse45 58979) 0) (not (= .cse46 0)) (<= (+ c_~a23~0 42) .cse46) (<= 0 (* 9 v_prenex_26)))))) (exists ((v_prenex_17 Int)) (let ((.cse47 (div (* v_prenex_17 9) 10))) (and (<= c_~a23~0 (+ (mod (+ .cse47 29) 90) 48)) (< (+ .cse47 58980) 0) (<= 0 (+ .cse47 58979)) (<= |c_old(~a23~0)| v_prenex_17) (<= 0 (* 9 v_prenex_17)) (not (= (mod (+ .cse47 30) 90) 0))))) (exists ((v_prenex_20 Int)) (let ((.cse49 (* v_prenex_20 9))) (let ((.cse48 (div .cse49 10))) (and (<= c_~a23~0 (+ (mod (+ .cse48 30) 90) 48)) (<= |c_old(~a23~0)| v_prenex_20) (= (mod (+ .cse48 29) 90) 0) (< (* 9 v_prenex_20) 0) (not (= 0 (mod .cse49 10))) (<= 0 (+ .cse48 58980)))))) (exists ((v_prenex_1 Int)) (let ((.cse50 (* v_prenex_1 9))) (let ((.cse52 (div .cse50 10))) (let ((.cse51 (mod (+ .cse52 30) 90))) (and (not (= 0 (mod .cse50 10))) (<= (+ c_~a23~0 42) .cse51) (< (+ .cse52 58980) 0) (not (= .cse51 0)) (= (mod (+ .cse52 29) 90) 0) (< (* 9 v_prenex_1) 0) (<= |c_old(~a23~0)| v_prenex_1)))))) (exists ((v_prenex_4 Int)) (let ((.cse53 (div (* v_prenex_4 9) 10))) (let ((.cse54 (mod (+ .cse53 29) 90))) (and (<= 0 (* 9 v_prenex_4)) (<= 0 (+ .cse53 58980)) (= .cse54 0) (<= |c_old(~a23~0)| v_prenex_4) (<= c_~a23~0 (+ .cse54 48)))))) (exists ((v_prenex_3 Int)) (let ((.cse57 (* v_prenex_3 9))) (let ((.cse56 (div .cse57 10))) (let ((.cse55 (mod (+ .cse56 30) 90))) (and (not (= .cse55 0)) (< (* 9 v_prenex_3) 0) (< (+ .cse56 58980) 0) (<= |c_old(~a23~0)| v_prenex_3) (not (= (mod (+ .cse56 29) 90) 0)) (< (+ .cse56 58979) 0) (not (= 0 (mod .cse57 10))) (<= (+ c_~a23~0 42) .cse55)))))) (exists ((v_prenex_5 Int)) (let ((.cse59 (* v_prenex_5 9))) (let ((.cse58 (div .cse59 10))) (and (= (mod (+ .cse58 30) 90) 0) (<= 0 (+ .cse58 58979)) (<= |c_old(~a23~0)| v_prenex_5) (<= c_~a23~0 (+ (mod (+ .cse58 29) 90) 48)) (= 0 (mod .cse59 10)))))) (exists ((v_prenex_21 Int)) (let ((.cse61 (* v_prenex_21 9))) (let ((.cse60 (div .cse61 10))) (and (<= |c_old(~a23~0)| v_prenex_21) (<= 0 (+ .cse60 58980)) (not (= 0 (mod .cse61 10))) (< (* 9 v_prenex_21) 0) (<= 0 (+ .cse60 58979)) (<= c_~a23~0 (+ (mod (+ .cse60 30) 90) 48)))))) (exists ((v_prenex_14 Int)) (let ((.cse62 (div (* v_prenex_14 9) 10))) (and (<= |c_old(~a23~0)| v_prenex_14) (<= 0 (+ .cse62 58980)) (<= 0 (+ .cse62 58979)) (<= c_~a23~0 (+ (mod (+ .cse62 29) 90) 48)) (<= 0 (* 9 v_prenex_14)))))) is different from true [2019-10-13 18:01:13,599 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 27 terms [2019-10-13 18:01:13,880 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 70 trivial. 2 not checked. [2019-10-13 18:01:13,881 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 18:01:13,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 10 [2019-10-13 18:01:13,881 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573533240] [2019-10-13 18:01:13,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 18:01:13,882 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:01:13,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 18:01:13,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=41, Unknown=2, NotChecked=26, Total=90 [2019-10-13 18:01:13,883 INFO L87 Difference]: Start difference. First operand 3401 states and 4513 transitions. Second operand 10 states.