/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench/egcd.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:16:22,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:16:22,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:16:22,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:16:22,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:16:22,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:16:22,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:16:22,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:16:22,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:16:22,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:16:22,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:16:22,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:16:22,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:16:22,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:16:22,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:16:22,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:16:22,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:16:22,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:16:22,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:16:22,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:16:22,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:16:22,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:16:22,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:16:22,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:16:22,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-23 22:16:22,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-23 22:16:22,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-23 22:16:22,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-23 22:16:22,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-23 22:16:22,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-23 22:16:22,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 22:16:22,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 22:16:22,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 22:16:22,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 22:16:22,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 22:16:22,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 22:16:22,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 22:16:22,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 22:16:22,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:16:22,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:16:22,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:16:22,779 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-23 22:16:22,793 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:16:22,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:16:22,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:16:22,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:16:22,795 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:16:22,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:16:22,795 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:16:22,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:16:22,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:16:22,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:16:22,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:16:22,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:16:22,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:16:22,797 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:16:22,797 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:16:22,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:16:22,797 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:16:22,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:16:22,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:16:22,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:16:22,798 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:16:22,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:16:22,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:16:22,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:16:22,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:16:22,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:16:22,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:16:22,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:16:22,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:16:22,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:16:23,119 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:16:23,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:16:23,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:16:23,150 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:16:23,151 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:16:23,152 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/egcd.c [2019-11-23 22:16:23,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d45e10e2/8b0b752bb5a1443c89c9088d5c5bbf08/FLAGeff0f3fe4 [2019-11-23 22:16:23,730 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:16:23,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/egcd.c [2019-11-23 22:16:23,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d45e10e2/8b0b752bb5a1443c89c9088d5c5bbf08/FLAGeff0f3fe4 [2019-11-23 22:16:24,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d45e10e2/8b0b752bb5a1443c89c9088d5c5bbf08 [2019-11-23 22:16:24,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:16:24,113 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:16:24,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:16:24,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:16:24,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:16:24,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:16:24" (1/1) ... [2019-11-23 22:16:24,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5951d3a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24, skipping insertion in model container [2019-11-23 22:16:24,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:16:24" (1/1) ... [2019-11-23 22:16:24,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:16:24,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:16:24,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:16:24,337 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:16:24,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:16:24,373 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:16:24,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24 WrapperNode [2019-11-23 22:16:24,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:16:24,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:16:24,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:16:24,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:16:24,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24" (1/1) ... [2019-11-23 22:16:24,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24" (1/1) ... [2019-11-23 22:16:24,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:16:24,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:16:24,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:16:24,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:16:24,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24" (1/1) ... [2019-11-23 22:16:24,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24" (1/1) ... [2019-11-23 22:16:24,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24" (1/1) ... [2019-11-23 22:16:24,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24" (1/1) ... [2019-11-23 22:16:24,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24" (1/1) ... [2019-11-23 22:16:24,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24" (1/1) ... [2019-11-23 22:16:24,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24" (1/1) ... [2019-11-23 22:16:24,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:16:24,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:16:24,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:16:24,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:16:24,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:16:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:16:24,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:16:24,804 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:16:24,805 INFO L284 CfgBuilder]: Removed 19 assume(true) statements. [2019-11-23 22:16:24,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:16:24 BoogieIcfgContainer [2019-11-23 22:16:24,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:16:24,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:16:24,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:16:24,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:16:24,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:16:24" (1/3) ... [2019-11-23 22:16:24,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2f0be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:16:24, skipping insertion in model container [2019-11-23 22:16:24,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:16:24" (2/3) ... [2019-11-23 22:16:24,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2f0be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:16:24, skipping insertion in model container [2019-11-23 22:16:24,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:16:24" (3/3) ... [2019-11-23 22:16:24,820 INFO L109 eAbstractionObserver]: Analyzing ICFG egcd.c [2019-11-23 22:16:24,846 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:16:24,860 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-11-23 22:16:24,884 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-11-23 22:16:24,908 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:16:24,909 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:16:24,909 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:16:24,909 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:16:24,909 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:16:24,909 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:16:24,910 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:16:24,910 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:16:24,926 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-11-23 22:16:24,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-23 22:16:24,930 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:24,931 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-23 22:16:24,931 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:24,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:24,937 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-23 22:16:24,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:24,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906020717] [2019-11-23 22:16:24,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:25,018 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:25,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639145045] [2019-11-23 22:16:25,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:25,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-23 22:16:25,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:25,138 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906020717] [2019-11-23 22:16:25,138 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:25,139 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639145045] [2019-11-23 22:16:25,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:16:25,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:16:25,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64516337] [2019-11-23 22:16:25,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:16:25,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:25,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:16:25,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:16:25,158 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 4 states. [2019-11-23 22:16:25,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:25,344 INFO L93 Difference]: Finished difference Result 99 states and 129 transitions. [2019-11-23 22:16:25,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:16:25,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-23 22:16:25,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:25,357 INFO L225 Difference]: With dead ends: 99 [2019-11-23 22:16:25,357 INFO L226 Difference]: Without dead ends: 57 [2019-11-23 22:16:25,361 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:16:25,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-11-23 22:16:25,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 45. [2019-11-23 22:16:25,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-23 22:16:25,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2019-11-23 22:16:25,401 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 4 [2019-11-23 22:16:25,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:25,402 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2019-11-23 22:16:25,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:16:25,402 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2019-11-23 22:16:25,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-23 22:16:25,403 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:25,403 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-23 22:16:25,606 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:25,607 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:25,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:25,608 INFO L82 PathProgramCache]: Analyzing trace with hash 925925231, now seen corresponding path program 1 times [2019-11-23 22:16:25,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:25,609 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955686115] [2019-11-23 22:16:25,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:25,621 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:25,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1280898958] [2019-11-23 22:16:25,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:25,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-23 22:16:25,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:25,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:25,671 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955686115] [2019-11-23 22:16:25,672 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:25,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280898958] [2019-11-23 22:16:25,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:16:25,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:16:25,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070548503] [2019-11-23 22:16:25,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:16:25,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:25,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:16:25,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:16:25,676 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 4 states. [2019-11-23 22:16:25,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:25,813 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2019-11-23 22:16:25,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:16:25,814 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-23 22:16:25,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:25,815 INFO L225 Difference]: With dead ends: 57 [2019-11-23 22:16:25,815 INFO L226 Difference]: Without dead ends: 55 [2019-11-23 22:16:25,816 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:16:25,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-23 22:16:25,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 45. [2019-11-23 22:16:25,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-23 22:16:25,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2019-11-23 22:16:25,826 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 6 [2019-11-23 22:16:25,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:25,826 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2019-11-23 22:16:25,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:16:25,826 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2019-11-23 22:16:25,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 22:16:25,827 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:25,827 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:16:26,030 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:26,030 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:26,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:26,031 INFO L82 PathProgramCache]: Analyzing trace with hash 756072562, now seen corresponding path program 1 times [2019-11-23 22:16:26,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:26,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679985260] [2019-11-23 22:16:26,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:26,039 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:26,039 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303822926] [2019-11-23 22:16:26,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:26,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-23 22:16:26,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:26,108 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679985260] [2019-11-23 22:16:26,108 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:26,109 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303822926] [2019-11-23 22:16:26,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:16:26,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:16:26,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476179040] [2019-11-23 22:16:26,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:16:26,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:26,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:16:26,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:16:26,111 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand 4 states. [2019-11-23 22:16:26,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:26,227 INFO L93 Difference]: Finished difference Result 91 states and 103 transitions. [2019-11-23 22:16:26,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 22:16:26,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-23 22:16:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:26,229 INFO L225 Difference]: With dead ends: 91 [2019-11-23 22:16:26,229 INFO L226 Difference]: Without dead ends: 83 [2019-11-23 22:16:26,230 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:16:26,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-11-23 22:16:26,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 71. [2019-11-23 22:16:26,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-23 22:16:26,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2019-11-23 22:16:26,244 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 8 [2019-11-23 22:16:26,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:26,244 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2019-11-23 22:16:26,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:16:26,245 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2019-11-23 22:16:26,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-23 22:16:26,245 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:26,245 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:16:26,450 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:26,451 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:26,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:26,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1354106950, now seen corresponding path program 1 times [2019-11-23 22:16:26,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:26,453 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768160240] [2019-11-23 22:16:26,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:26,460 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:26,461 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293846821] [2019-11-23 22:16:26,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:26,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-23 22:16:26,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:26,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768160240] [2019-11-23 22:16:26,536 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:26,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293846821] [2019-11-23 22:16:26,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:16:26,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 22:16:26,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843899265] [2019-11-23 22:16:26,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:16:26,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:26,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:16:26,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:16:26,539 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand 4 states. [2019-11-23 22:16:26,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:26,586 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2019-11-23 22:16:26,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:16:26,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-23 22:16:26,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:26,589 INFO L225 Difference]: With dead ends: 71 [2019-11-23 22:16:26,590 INFO L226 Difference]: Without dead ends: 69 [2019-11-23 22:16:26,590 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:16:26,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-23 22:16:26,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-11-23 22:16:26,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-11-23 22:16:26,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2019-11-23 22:16:26,601 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 11 [2019-11-23 22:16:26,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:26,601 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2019-11-23 22:16:26,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:16:26,601 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2019-11-23 22:16:26,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-23 22:16:26,602 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:26,602 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:16:26,805 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:26,806 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:26,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:26,807 INFO L82 PathProgramCache]: Analyzing trace with hash -970768559, now seen corresponding path program 1 times [2019-11-23 22:16:26,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:26,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104921123] [2019-11-23 22:16:26,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:26,815 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:26,815 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1696480043] [2019-11-23 22:16:26,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:26,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-23 22:16:26,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:26,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 22:16:26,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104921123] [2019-11-23 22:16:26,885 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:26,886 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696480043] [2019-11-23 22:16:26,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:26,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-11-23 22:16:26,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510120203] [2019-11-23 22:16:26,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:16:26,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:26,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:16:26,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:16:26,887 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand 4 states. [2019-11-23 22:16:26,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:26,953 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2019-11-23 22:16:26,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:16:26,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-23 22:16:26,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:26,954 INFO L225 Difference]: With dead ends: 77 [2019-11-23 22:16:26,954 INFO L226 Difference]: Without dead ends: 71 [2019-11-23 22:16:26,955 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:16:26,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-23 22:16:26,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2019-11-23 22:16:26,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-11-23 22:16:26,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2019-11-23 22:16:26,964 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 12 [2019-11-23 22:16:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:26,964 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2019-11-23 22:16:26,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:16:26,964 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2019-11-23 22:16:26,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-23 22:16:26,965 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:26,965 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:16:27,169 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:27,174 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:27,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:27,175 INFO L82 PathProgramCache]: Analyzing trace with hash -78154743, now seen corresponding path program 1 times [2019-11-23 22:16:27,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:27,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120369112] [2019-11-23 22:16:27,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:27,186 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:27,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458343616] [2019-11-23 22:16:27,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:27,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-23 22:16:27,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:27,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:27,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120369112] [2019-11-23 22:16:27,264 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:27,265 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458343616] [2019-11-23 22:16:27,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:16:27,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 22:16:27,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021734244] [2019-11-23 22:16:27,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-23 22:16:27,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:27,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-23 22:16:27,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:16:27,267 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand 5 states. [2019-11-23 22:16:27,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:27,394 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2019-11-23 22:16:27,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-23 22:16:27,394 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-23 22:16:27,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:27,395 INFO L225 Difference]: With dead ends: 75 [2019-11-23 22:16:27,395 INFO L226 Difference]: Without dead ends: 69 [2019-11-23 22:16:27,396 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-23 22:16:27,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-23 22:16:27,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2019-11-23 22:16:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-11-23 22:16:27,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2019-11-23 22:16:27,404 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 13 [2019-11-23 22:16:27,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:27,404 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2019-11-23 22:16:27,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-23 22:16:27,405 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2019-11-23 22:16:27,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-23 22:16:27,405 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:27,405 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:16:27,617 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:27,618 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:27,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:27,619 INFO L82 PathProgramCache]: Analyzing trace with hash -900526476, now seen corresponding path program 1 times [2019-11-23 22:16:27,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:27,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000809969] [2019-11-23 22:16:27,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:27,627 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:27,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395962940] [2019-11-23 22:16:27,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:27,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-23 22:16:27,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:27,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:27,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:27,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000809969] [2019-11-23 22:16:27,715 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:27,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395962940] [2019-11-23 22:16:27,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:27,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-11-23 22:16:27,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92450736] [2019-11-23 22:16:27,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-23 22:16:27,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:27,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-23 22:16:27,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:16:27,719 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 5 states. [2019-11-23 22:16:27,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:27,850 INFO L93 Difference]: Finished difference Result 104 states and 116 transitions. [2019-11-23 22:16:27,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-23 22:16:27,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-23 22:16:27,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:27,853 INFO L225 Difference]: With dead ends: 104 [2019-11-23 22:16:27,853 INFO L226 Difference]: Without dead ends: 102 [2019-11-23 22:16:27,854 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-23 22:16:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-23 22:16:27,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 79. [2019-11-23 22:16:27,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-23 22:16:27,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2019-11-23 22:16:27,866 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 14 [2019-11-23 22:16:27,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:27,867 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2019-11-23 22:16:27,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-23 22:16:27,867 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2019-11-23 22:16:27,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-23 22:16:27,868 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:27,868 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-23 22:16:28,070 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:28,071 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:28,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:28,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1368259573, now seen corresponding path program 1 times [2019-11-23 22:16:28,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:28,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521823953] [2019-11-23 22:16:28,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:28,078 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:28,079 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115565279] [2019-11-23 22:16:28,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:28,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-23 22:16:28,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:28,159 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:28,169 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:28,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521823953] [2019-11-23 22:16:28,170 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:28,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115565279] [2019-11-23 22:16:28,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:28,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-11-23 22:16:28,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711838150] [2019-11-23 22:16:28,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-23 22:16:28,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:28,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-23 22:16:28,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:16:28,173 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand 5 states. [2019-11-23 22:16:28,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:28,341 INFO L93 Difference]: Finished difference Result 123 states and 141 transitions. [2019-11-23 22:16:28,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-23 22:16:28,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-23 22:16:28,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:28,343 INFO L225 Difference]: With dead ends: 123 [2019-11-23 22:16:28,343 INFO L226 Difference]: Without dead ends: 111 [2019-11-23 22:16:28,344 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-23 22:16:28,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-11-23 22:16:28,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 101. [2019-11-23 22:16:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-23 22:16:28,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 121 transitions. [2019-11-23 22:16:28,354 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 121 transitions. Word has length 16 [2019-11-23 22:16:28,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:28,355 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 121 transitions. [2019-11-23 22:16:28,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-23 22:16:28,355 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 121 transitions. [2019-11-23 22:16:28,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-23 22:16:28,356 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:28,356 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-23 22:16:28,559 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:28,560 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:28,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:28,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1688297644, now seen corresponding path program 1 times [2019-11-23 22:16:28,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:28,562 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444773055] [2019-11-23 22:16:28,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:28,567 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:28,568 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883030039] [2019-11-23 22:16:28,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:28,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-23 22:16:28,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:28,669 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:28,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444773055] [2019-11-23 22:16:28,669 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:28,670 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883030039] [2019-11-23 22:16:28,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:28,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-11-23 22:16:28,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785777271] [2019-11-23 22:16:28,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 22:16:28,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:28,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 22:16:28,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:16:28,671 INFO L87 Difference]: Start difference. First operand 101 states and 121 transitions. Second operand 6 states. [2019-11-23 22:16:28,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:28,843 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2019-11-23 22:16:28,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 22:16:28,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-23 22:16:28,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:28,846 INFO L225 Difference]: With dead ends: 133 [2019-11-23 22:16:28,846 INFO L226 Difference]: Without dead ends: 129 [2019-11-23 22:16:28,846 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-23 22:16:28,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-23 22:16:28,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 112. [2019-11-23 22:16:28,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-11-23 22:16:28,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 135 transitions. [2019-11-23 22:16:28,868 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 135 transitions. Word has length 20 [2019-11-23 22:16:28,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:28,868 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 135 transitions. [2019-11-23 22:16:28,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 22:16:28,868 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 135 transitions. [2019-11-23 22:16:28,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-23 22:16:28,869 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:28,869 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-23 22:16:29,069 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:29,070 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:29,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:29,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1430191788, now seen corresponding path program 2 times [2019-11-23 22:16:29,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:29,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992328831] [2019-11-23 22:16:29,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:29,077 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:29,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228422810] [2019-11-23 22:16:29,078 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:29,106 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-23 22:16:29,106 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:16:29,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-23 22:16:29,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:29,165 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:29,166 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992328831] [2019-11-23 22:16:29,166 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:29,166 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228422810] [2019-11-23 22:16:29,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:29,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-11-23 22:16:29,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086088765] [2019-11-23 22:16:29,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 22:16:29,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:29,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 22:16:29,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:16:29,167 INFO L87 Difference]: Start difference. First operand 112 states and 135 transitions. Second operand 6 states. [2019-11-23 22:16:29,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:29,315 INFO L93 Difference]: Finished difference Result 134 states and 158 transitions. [2019-11-23 22:16:29,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 22:16:29,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-23 22:16:29,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:29,317 INFO L225 Difference]: With dead ends: 134 [2019-11-23 22:16:29,317 INFO L226 Difference]: Without dead ends: 128 [2019-11-23 22:16:29,318 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-23 22:16:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-11-23 22:16:29,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 119. [2019-11-23 22:16:29,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-23 22:16:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 144 transitions. [2019-11-23 22:16:29,327 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 144 transitions. Word has length 20 [2019-11-23 22:16:29,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:29,328 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 144 transitions. [2019-11-23 22:16:29,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 22:16:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 144 transitions. [2019-11-23 22:16:29,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-23 22:16:29,329 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:29,329 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:16:29,533 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:29,533 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:29,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:29,533 INFO L82 PathProgramCache]: Analyzing trace with hash -848566940, now seen corresponding path program 1 times [2019-11-23 22:16:29,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:29,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426760656] [2019-11-23 22:16:29,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:29,556 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:29,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071785611] [2019-11-23 22:16:29,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:29,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-23 22:16:29,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:29,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:29,649 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-23 22:16:29,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426760656] [2019-11-23 22:16:29,659 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:29,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071785611] [2019-11-23 22:16:29,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:16:29,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-23 22:16:29,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774658221] [2019-11-23 22:16:29,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-23 22:16:29,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:29,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-23 22:16:29,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-23 22:16:29,661 INFO L87 Difference]: Start difference. First operand 119 states and 144 transitions. Second operand 7 states. [2019-11-23 22:16:29,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:29,811 INFO L93 Difference]: Finished difference Result 127 states and 152 transitions. [2019-11-23 22:16:29,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 22:16:29,812 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-11-23 22:16:29,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:29,813 INFO L225 Difference]: With dead ends: 127 [2019-11-23 22:16:29,813 INFO L226 Difference]: Without dead ends: 119 [2019-11-23 22:16:29,813 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-23 22:16:29,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-11-23 22:16:29,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 105. [2019-11-23 22:16:29,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-23 22:16:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2019-11-23 22:16:29,824 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 21 [2019-11-23 22:16:29,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:29,825 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2019-11-23 22:16:29,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-23 22:16:29,825 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2019-11-23 22:16:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-23 22:16:29,826 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:29,826 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1] [2019-11-23 22:16:30,037 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:30,038 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:30,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:30,038 INFO L82 PathProgramCache]: Analyzing trace with hash 986499193, now seen corresponding path program 2 times [2019-11-23 22:16:30,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:30,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285901445] [2019-11-23 22:16:30,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:30,044 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:30,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [113653538] [2019-11-23 22:16:30,044 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:30,085 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-23 22:16:30,086 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:16:30,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 31 conjunts are in the unsatisfiable core [2019-11-23 22:16:30,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:30,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:30,191 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:30,191 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285901445] [2019-11-23 22:16:30,191 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:30,193 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113653538] [2019-11-23 22:16:30,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:30,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-11-23 22:16:30,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887500834] [2019-11-23 22:16:30,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 22:16:30,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:30,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 22:16:30,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:16:30,195 INFO L87 Difference]: Start difference. First operand 105 states and 122 transitions. Second operand 6 states. [2019-11-23 22:16:30,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:30,379 INFO L93 Difference]: Finished difference Result 139 states and 158 transitions. [2019-11-23 22:16:30,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 22:16:30,379 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-11-23 22:16:30,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:30,380 INFO L225 Difference]: With dead ends: 139 [2019-11-23 22:16:30,381 INFO L226 Difference]: Without dead ends: 137 [2019-11-23 22:16:30,381 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-23 22:16:30,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-23 22:16:30,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2019-11-23 22:16:30,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-23 22:16:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 126 transitions. [2019-11-23 22:16:30,389 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 126 transitions. Word has length 22 [2019-11-23 22:16:30,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:30,390 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 126 transitions. [2019-11-23 22:16:30,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 22:16:30,390 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 126 transitions. [2019-11-23 22:16:30,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-23 22:16:30,392 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:30,393 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-23 22:16:30,599 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:30,599 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:30,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:30,600 INFO L82 PathProgramCache]: Analyzing trace with hash -24618057, now seen corresponding path program 1 times [2019-11-23 22:16:30,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:30,600 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179474178] [2019-11-23 22:16:30,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:30,607 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:30,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785395108] [2019-11-23 22:16:30,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:30,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 31 conjunts are in the unsatisfiable core [2019-11-23 22:16:30,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:30,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:30,721 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:30,722 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179474178] [2019-11-23 22:16:30,722 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:30,722 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785395108] [2019-11-23 22:16:30,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:30,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-11-23 22:16:30,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495707994] [2019-11-23 22:16:30,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 22:16:30,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:30,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 22:16:30,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:16:30,724 INFO L87 Difference]: Start difference. First operand 109 states and 126 transitions. Second operand 6 states. [2019-11-23 22:16:30,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:30,951 INFO L93 Difference]: Finished difference Result 137 states and 155 transitions. [2019-11-23 22:16:30,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 22:16:30,952 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-11-23 22:16:30,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:30,953 INFO L225 Difference]: With dead ends: 137 [2019-11-23 22:16:30,953 INFO L226 Difference]: Without dead ends: 135 [2019-11-23 22:16:30,954 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-23 22:16:30,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-11-23 22:16:30,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 109. [2019-11-23 22:16:30,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-23 22:16:30,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2019-11-23 22:16:30,962 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 22 [2019-11-23 22:16:30,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:30,963 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2019-11-23 22:16:30,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 22:16:30,963 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2019-11-23 22:16:30,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-23 22:16:30,964 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:30,964 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2019-11-23 22:16:31,167 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:31,168 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:31,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:31,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1971238726, now seen corresponding path program 1 times [2019-11-23 22:16:31,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:31,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366623016] [2019-11-23 22:16:31,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:31,176 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:31,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1150872944] [2019-11-23 22:16:31,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:16:31,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2019-11-23 22:16:31,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:31,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:31,290 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:31,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366623016] [2019-11-23 22:16:31,291 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:31,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150872944] [2019-11-23 22:16:31,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:31,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-11-23 22:16:31,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081531508] [2019-11-23 22:16:31,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 22:16:31,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:31,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 22:16:31,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:16:31,293 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand 6 states. [2019-11-23 22:16:31,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:31,500 INFO L93 Difference]: Finished difference Result 142 states and 159 transitions. [2019-11-23 22:16:31,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 22:16:31,500 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-23 22:16:31,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:31,502 INFO L225 Difference]: With dead ends: 142 [2019-11-23 22:16:31,502 INFO L226 Difference]: Without dead ends: 130 [2019-11-23 22:16:31,502 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-23 22:16:31,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-11-23 22:16:31,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 102. [2019-11-23 22:16:31,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-23 22:16:31,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2019-11-23 22:16:31,516 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 24 [2019-11-23 22:16:31,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:31,516 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2019-11-23 22:16:31,516 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 22:16:31,517 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2019-11-23 22:16:31,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-23 22:16:31,518 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:31,518 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1] [2019-11-23 22:16:31,721 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:31,721 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:31,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:31,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1302660216, now seen corresponding path program 2 times [2019-11-23 22:16:31,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:31,722 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722419854] [2019-11-23 22:16:31,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:31,727 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:31,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697288810] [2019-11-23 22:16:31,727 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:31,767 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-23 22:16:31,767 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:16:31,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2019-11-23 22:16:31,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:31,816 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:31,829 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722419854] [2019-11-23 22:16:31,829 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:31,829 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697288810] [2019-11-23 22:16:31,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:31,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-11-23 22:16:31,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809097620] [2019-11-23 22:16:31,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 22:16:31,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:31,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 22:16:31,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:16:31,830 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 6 states. [2019-11-23 22:16:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:32,021 INFO L93 Difference]: Finished difference Result 145 states and 163 transitions. [2019-11-23 22:16:32,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-23 22:16:32,022 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-23 22:16:32,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:32,023 INFO L225 Difference]: With dead ends: 145 [2019-11-23 22:16:32,023 INFO L226 Difference]: Without dead ends: 133 [2019-11-23 22:16:32,023 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-23 22:16:32,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-23 22:16:32,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 110. [2019-11-23 22:16:32,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-23 22:16:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2019-11-23 22:16:32,033 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 24 [2019-11-23 22:16:32,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:32,033 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2019-11-23 22:16:32,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 22:16:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2019-11-23 22:16:32,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-23 22:16:32,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:32,034 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2019-11-23 22:16:32,238 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:32,238 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:32,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:32,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1554252185, now seen corresponding path program 3 times [2019-11-23 22:16:32,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:32,238 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457154039] [2019-11-23 22:16:32,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:32,243 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:32,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [652738741] [2019-11-23 22:16:32,243 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:32,289 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-23 22:16:32,289 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:16:32,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-23 22:16:32,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:32,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-23 22:16:32,359 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457154039] [2019-11-23 22:16:32,359 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:32,360 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652738741] [2019-11-23 22:16:32,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:32,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-11-23 22:16:32,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082044205] [2019-11-23 22:16:32,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-23 22:16:32,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:32,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-23 22:16:32,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-23 22:16:32,361 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand 7 states. [2019-11-23 22:16:32,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:32,480 INFO L93 Difference]: Finished difference Result 144 states and 160 transitions. [2019-11-23 22:16:32,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-23 22:16:32,481 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-23 22:16:32,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:32,482 INFO L225 Difference]: With dead ends: 144 [2019-11-23 22:16:32,482 INFO L226 Difference]: Without dead ends: 140 [2019-11-23 22:16:32,483 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-23 22:16:32,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-23 22:16:32,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 117. [2019-11-23 22:16:32,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-23 22:16:32,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 134 transitions. [2019-11-23 22:16:32,496 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 134 transitions. Word has length 28 [2019-11-23 22:16:32,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:32,496 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 134 transitions. [2019-11-23 22:16:32,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-23 22:16:32,496 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 134 transitions. [2019-11-23 22:16:32,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-23 22:16:32,497 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:32,497 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2019-11-23 22:16:32,700 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:32,700 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:32,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:32,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1812358041, now seen corresponding path program 4 times [2019-11-23 22:16:32,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:32,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704152869] [2019-11-23 22:16:32,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:32,708 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:32,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515928115] [2019-11-23 22:16:32,708 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:32,741 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-23 22:16:32,742 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:16:32,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-23 22:16:32,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:32,765 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:32,794 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:32,812 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-23 22:16:32,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704152869] [2019-11-23 22:16:32,813 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:32,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515928115] [2019-11-23 22:16:32,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:32,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-11-23 22:16:32,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317251356] [2019-11-23 22:16:32,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-23 22:16:32,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:32,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-23 22:16:32,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:16:32,816 INFO L87 Difference]: Start difference. First operand 117 states and 134 transitions. Second operand 5 states. [2019-11-23 22:16:32,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:32,902 INFO L93 Difference]: Finished difference Result 117 states and 134 transitions. [2019-11-23 22:16:32,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:16:32,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-11-23 22:16:32,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:32,904 INFO L225 Difference]: With dead ends: 117 [2019-11-23 22:16:32,904 INFO L226 Difference]: Without dead ends: 107 [2019-11-23 22:16:32,904 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:16:32,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-11-23 22:16:32,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 55. [2019-11-23 22:16:32,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-23 22:16:32,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2019-11-23 22:16:32,911 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 28 [2019-11-23 22:16:32,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:32,911 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2019-11-23 22:16:32,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-23 22:16:32,911 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2019-11-23 22:16:32,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-23 22:16:32,912 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:32,912 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1] [2019-11-23 22:16:33,116 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:33,116 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:33,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:33,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1069372034, now seen corresponding path program 3 times [2019-11-23 22:16:33,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:33,117 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778999517] [2019-11-23 22:16:33,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:33,122 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:33,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693830901] [2019-11-23 22:16:33,123 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:33,149 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-11-23 22:16:33,149 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:16:33,150 WARN L253 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-23 22:16:33,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:33,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:33,232 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:33,248 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-23 22:16:33,266 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778999517] [2019-11-23 22:16:33,266 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:33,266 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693830901] [2019-11-23 22:16:33,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:33,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-11-23 22:16:33,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371203016] [2019-11-23 22:16:33,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-23 22:16:33,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:33,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-23 22:16:33,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-23 22:16:33,268 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 9 states. [2019-11-23 22:16:33,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:33,518 INFO L93 Difference]: Finished difference Result 107 states and 116 transitions. [2019-11-23 22:16:33,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-23 22:16:33,519 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2019-11-23 22:16:33,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:33,520 INFO L225 Difference]: With dead ends: 107 [2019-11-23 22:16:33,520 INFO L226 Difference]: Without dead ends: 105 [2019-11-23 22:16:33,521 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-23 22:16:33,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-11-23 22:16:33,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 71. [2019-11-23 22:16:33,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-23 22:16:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2019-11-23 22:16:33,529 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 30 [2019-11-23 22:16:33,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:33,529 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2019-11-23 22:16:33,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-23 22:16:33,529 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2019-11-23 22:16:33,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-23 22:16:33,530 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:33,530 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2019-11-23 22:16:33,733 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:33,733 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:33,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:33,734 INFO L82 PathProgramCache]: Analyzing trace with hash -2080489284, now seen corresponding path program 2 times [2019-11-23 22:16:33,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:33,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793517150] [2019-11-23 22:16:33,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:33,741 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:33,742 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673671287] [2019-11-23 22:16:33,742 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:33,769 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-23 22:16:33,770 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:16:33,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 37 conjunts are in the unsatisfiable core [2019-11-23 22:16:33,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:33,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:16:33,871 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793517150] [2019-11-23 22:16:33,871 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:33,871 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673671287] [2019-11-23 22:16:33,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:33,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-11-23 22:16:33,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616634799] [2019-11-23 22:16:33,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-23 22:16:33,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:33,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-23 22:16:33,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-23 22:16:33,873 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand 7 states. [2019-11-23 22:16:34,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:34,186 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2019-11-23 22:16:34,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-23 22:16:34,187 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2019-11-23 22:16:34,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:34,188 INFO L225 Difference]: With dead ends: 111 [2019-11-23 22:16:34,188 INFO L226 Difference]: Without dead ends: 109 [2019-11-23 22:16:34,188 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-23 22:16:34,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-23 22:16:34,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 79. [2019-11-23 22:16:34,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-23 22:16:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2019-11-23 22:16:34,200 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 30 [2019-11-23 22:16:34,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:34,201 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2019-11-23 22:16:34,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-23 22:16:34,201 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2019-11-23 22:16:34,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-23 22:16:34,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:16:34,202 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2019-11-23 22:16:34,405 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:34,405 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:16:34,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:16:34,406 INFO L82 PathProgramCache]: Analyzing trace with hash -850517316, now seen corresponding path program 3 times [2019-11-23 22:16:34,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:16:34,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773733738] [2019-11-23 22:16:34,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:16:34,410 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:16:34,411 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513606929] [2019-11-23 22:16:34,411 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:34,442 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-11-23 22:16:34,442 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:16:34,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-23 22:16:34,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:16:34,478 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:34,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:16:34,582 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-23 22:16:34,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773733738] [2019-11-23 22:16:34,582 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:16:34,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513606929] [2019-11-23 22:16:34,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:16:34,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-11-23 22:16:34,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910079374] [2019-11-23 22:16:34,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-23 22:16:34,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:16:34,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-23 22:16:34,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-23 22:16:34,584 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 8 states. [2019-11-23 22:16:34,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:16:34,712 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2019-11-23 22:16:34,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:16:34,712 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-11-23 22:16:34,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:16:34,713 INFO L225 Difference]: With dead ends: 79 [2019-11-23 22:16:34,713 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:16:34,713 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-23 22:16:34,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:16:34,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:16:34,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:16:34,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:16:34,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2019-11-23 22:16:34,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:16:34,714 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:16:34,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-23 22:16:34,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:16:34,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:16:34,915 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:16:34,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:16:50,941 WARN L192 SmtUtils]: Spent 15.57 s on a formula simplification. DAG size of input: 87 DAG size of output: 50 [2019-11-23 22:16:53,266 WARN L192 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 111 DAG size of output: 27 [2019-11-23 22:17:31,254 WARN L192 SmtUtils]: Spent 37.83 s on a formula simplification. DAG size of input: 107 DAG size of output: 46 [2019-11-23 22:17:31,716 WARN L192 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 26 [2019-11-23 22:17:31,719 INFO L440 ceAbstractionStarter]: At program point L6-5(lines 5 11) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) (= (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~s~0) (+ (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~q~0) 1)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0)) ULTIMATE.start_main_~b~0) (<= 1 ULTIMATE.start_main_~y~0)) [2019-11-23 22:17:31,720 INFO L444 ceAbstractionStarter]: For program point L6-6(lines 6 9) no Hoare annotation was computed. [2019-11-23 22:17:31,720 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-23 22:17:31,720 INFO L440 ceAbstractionStarter]: At program point L6-8(lines 33 34) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~s~0) (+ (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~q~0) 1)) (= (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0)) ULTIMATE.start_main_~b~0) (<= 1 ULTIMATE.start_main_~y~0)) [2019-11-23 22:17:31,720 INFO L444 ceAbstractionStarter]: For program point L6-9(lines 6 9) no Hoare annotation was computed. [2019-11-23 22:17:31,720 INFO L440 ceAbstractionStarter]: At program point L6-11(lines 5 11) the Hoare annotation is: (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) (= (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~s~0) (+ (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~q~0) 1)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0)) ULTIMATE.start_main_~b~0) (<= 1 ULTIMATE.start_main_~y~0)) [2019-11-23 22:17:31,720 INFO L444 ceAbstractionStarter]: For program point L6-12(lines 6 9) no Hoare annotation was computed. [2019-11-23 22:17:31,721 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-23 22:17:31,721 INFO L440 ceAbstractionStarter]: At program point L6-14(lines 5 11) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse3 (= ULTIMATE.start_main_~p~0 1)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse0 (= ULTIMATE.start_main_~s~0 1)) (.cse2 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0)) (.cse5 (<= 1 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0)) (and .cse2 (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) (= (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~s~0) (+ (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~q~0) 1)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0)) ULTIMATE.start_main_~b~0) .cse5) (and .cse0 .cse2 (= 1 (+ ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (= 0 (+ ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~r~0)) (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (= (+ ULTIMATE.start_main_~q~0 1) 0) .cse5))) [2019-11-23 22:17:31,721 INFO L444 ceAbstractionStarter]: For program point L6-15(lines 6 9) no Hoare annotation was computed. [2019-11-23 22:17:31,721 INFO L440 ceAbstractionStarter]: At program point L6-17(lines 5 11) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (.cse3 (= (+ ULTIMATE.start_main_~q~0 1) 0)) (.cse5 (= ULTIMATE.start_main_~s~0 1)) (.cse0 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0)) (.cse2 (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0)))) (.cse4 (<= 1 ULTIMATE.start_main_~y~0))) (or (and .cse0 (= (* ULTIMATE.start_main_~y~0 2) .cse1) (= ULTIMATE.start_main_~s~0 2) .cse2 .cse3 .cse4) (and .cse5 .cse0 (= ULTIMATE.start_main_~y~0 .cse1) .cse3 .cse4) (and .cse5 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~q~0 0) .cse4) (and (= (+ ULTIMATE.start_main_~q~0 2) 0) .cse5 .cse0 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~x~0 2))) .cse2 .cse4) (and .cse0 .cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~s~0) (+ (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~q~0) 1)) (= (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0)) ULTIMATE.start_main_~b~0) .cse4))) [2019-11-23 22:17:31,722 INFO L444 ceAbstractionStarter]: For program point L6-18(lines 6 9) no Hoare annotation was computed. [2019-11-23 22:17:31,722 INFO L447 ceAbstractionStarter]: At program point L6-20(lines 5 11) the Hoare annotation is: true [2019-11-23 22:17:31,722 INFO L444 ceAbstractionStarter]: For program point L7(lines 7 8) no Hoare annotation was computed. [2019-11-23 22:17:31,722 INFO L444 ceAbstractionStarter]: For program point L7-1(lines 7 8) no Hoare annotation was computed. [2019-11-23 22:17:31,722 INFO L444 ceAbstractionStarter]: For program point L7-2(lines 7 8) no Hoare annotation was computed. [2019-11-23 22:17:31,722 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 44) no Hoare annotation was computed. [2019-11-23 22:17:31,722 INFO L444 ceAbstractionStarter]: For program point L7-3(lines 7 8) no Hoare annotation was computed. [2019-11-23 22:17:31,722 INFO L444 ceAbstractionStarter]: For program point L7-4(lines 7 8) no Hoare annotation was computed. [2019-11-23 22:17:31,722 INFO L440 ceAbstractionStarter]: At program point L36-2(lines 28 45) the Hoare annotation is: (let ((.cse0 (= (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~s~0) (+ (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~q~0) 1))) (.cse1 (= (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0)) ULTIMATE.start_main_~b~0)) (.cse2 (<= 1 ULTIMATE.start_main_~y~0))) (or (and (= ULTIMATE.start_main_~p~0 1) .cse0 (= ULTIMATE.start_main_~q~0 0) .cse1 .cse2 (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0)) (and (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse1 .cse2))) [2019-11-23 22:17:31,723 INFO L444 ceAbstractionStarter]: For program point L7-5(lines 7 8) no Hoare annotation was computed. [2019-11-23 22:17:31,723 INFO L444 ceAbstractionStarter]: For program point L7-6(lines 7 8) no Hoare annotation was computed. [2019-11-23 22:17:31,723 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-23 22:17:31,723 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:17:31,723 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:17:31,723 INFO L444 ceAbstractionStarter]: For program point L28-2(lines 28 45) no Hoare annotation was computed. [2019-11-23 22:17:31,723 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-23 22:17:31,723 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:17:31,724 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-23 22:17:31,724 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-23 22:17:31,724 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-23 22:17:31,724 INFO L447 ceAbstractionStarter]: At program point L51(lines 13 52) the Hoare annotation is: true [2019-11-23 22:17:31,724 INFO L444 ceAbstractionStarter]: For program point L6(lines 6 9) no Hoare annotation was computed. [2019-11-23 22:17:31,724 INFO L440 ceAbstractionStarter]: At program point L6-2(lines 5 11) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~s~0) (+ (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~q~0) 1)) (= (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0)) ULTIMATE.start_main_~b~0) (<= 1 ULTIMATE.start_main_~y~0)) [2019-11-23 22:17:31,724 INFO L444 ceAbstractionStarter]: For program point L6-3(lines 6 9) no Hoare annotation was computed. [2019-11-23 22:17:31,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:17:31 BoogieIcfgContainer [2019-11-23 22:17:31,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:17:31,750 INFO L168 Benchmark]: Toolchain (without parser) took 67636.91 ms. Allocated memory was 136.8 MB in the beginning and 310.4 MB in the end (delta: 173.5 MB). Free memory was 101.5 MB in the beginning and 211.0 MB in the end (delta: -109.5 MB). Peak memory consumption was 185.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:31,750 INFO L168 Benchmark]: CDTParser took 1.52 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-23 22:17:31,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.32 ms. Allocated memory is still 136.8 MB. Free memory was 101.2 MB in the beginning and 90.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:31,752 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.14 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 90.8 MB in the beginning and 178.8 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:31,752 INFO L168 Benchmark]: Boogie Preprocessor took 27.96 ms. Allocated memory is still 199.8 MB. Free memory was 178.8 MB in the beginning and 177.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:31,753 INFO L168 Benchmark]: RCFGBuilder took 295.12 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 161.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:31,753 INFO L168 Benchmark]: TraceAbstraction took 66937.03 ms. Allocated memory was 199.8 MB in the beginning and 310.4 MB in the end (delta: 110.6 MB). Free memory was 161.8 MB in the beginning and 211.0 MB in the end (delta: -49.2 MB). Peak memory consumption was 182.6 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:31,756 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.52 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 259.32 ms. Allocated memory is still 136.8 MB. Free memory was 101.2 MB in the beginning and 90.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 109.14 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 90.8 MB in the beginning and 178.8 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.96 ms. Allocated memory is still 199.8 MB. Free memory was 178.8 MB in the beginning and 177.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 295.12 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 161.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 66937.03 ms. Allocated memory was 199.8 MB in the beginning and 310.4 MB in the end (delta: 110.6 MB). Free memory was 161.8 MB in the beginning and 211.0 MB in the end (delta: -49.2 MB). Peak memory consumption was 182.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: ((((((((b == a && y * 2 == b + x) && s == 2) && b == y * r + x * p) && q + 1 == 0) && 1 <= y) || ((((s == 1 && b == a) && y == b + x) && q + 1 == 0) && 1 <= y)) || (((s == 1 && b == y) && q == 0) && 1 <= y)) || (((((q + 2 == 0 && s == 1) && b == a) && y == b + x * 2) && b == y * r + x * p) && 1 <= y)) || (((((b == a && b == y * r + x * p) && 1 == cond) && p * s == r * q + 1) && x * q + y * s == b) && 1 <= y) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: ((((b == a && b == y * r + x * p) && p * s == r * q + 1) && 1 == cond) && x * q + y * s == b) && 1 <= y - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: (((a == y * r + x * p && p * s == r * q + 1) && 1 == cond) && x * q + y * s == b) && 1 <= y - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((p == 1 && p * s == r * q + 1) && q == 0) && x * q + y * s == b) && 1 <= y) && r == 0) && a == x) || ((((a == y * r + x * p && p * s == r * q + 1) && 1 == cond) && x * q + y * s == b) && 1 <= y) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: (((((((s == 1 && b == y) && b == a) && p == 1) && q == 0) && 1 <= y) || ((((((s == 1 && b == y) && p == 1) && q == 0) && 1 <= y) && r == 0) && a == x)) || (((((b == a && b == y * r + x * p) && p * s == r * q + 1) && 1 == cond) && x * q + y * s == b) && 1 <= y)) || ((((((s == 1 && b == a) && 1 == q + p) && 0 == s + r) && y == b + x) && q + 1 == 0) && 1 <= y) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (((a == y * r + x * p && 1 == cond) && p * s == r * q + 1) && x * q + y * s == b) && 1 <= y - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: (((a == y * r + x * p && 1 == cond) && p * s == r * q + 1) && x * q + y * s == b) && 1 <= y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 7 error locations. Result: SAFE, OverallTime: 66.8s, OverallIterations: 20, TraceHistogramMax: 4, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 56.7s, HoareTripleCheckerStatistics: 449 SDtfs, 533 SDslu, 986 SDs, 0 SdLazy, 1755 SolverSat, 178 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 407 GetRequests, 284 SyntacticMatches, 5 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 365 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 65 NumberOfFragments, 452 HoareAnnotationTreeSize, 9 FomulaSimplifications, 69433 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4159 FormulaSimplificationTreeSizeReductionInter, 56.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 383 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 363 ConstructedInterpolants, 0 QuantifiedInterpolants, 123283 SizeOfPredicates, 179 NumberOfNonLiveVariables, 1332 ConjunctsInSsa, 451 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 114/283 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...