/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 21:48:22,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 21:48:22,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 21:48:22,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-21 21:48:22,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-21 21:48:22,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-21 21:48:22,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-21 21:48:22,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-21 21:48:22,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-21 21:48:22,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-21 21:48:22,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-21 21:48:22,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-21 21:48:22,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-21 21:48:22,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-21 21:48:22,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-21 21:48:22,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-21 21:48:22,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-21 21:48:22,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 21:48:22,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 21:48:22,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 21:48:22,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 21:48:22,849 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 21:48:22,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 21:48:22,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 21:48:22,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 21:48:22,851 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 21:48:22,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 21:48:22,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 21:48:22,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 21:48:22,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 21:48:22,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 21:48:22,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 21:48:22,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 21:48:22,853 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 21:48:22,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 21:48:22,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 21:48:22,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 21:48:22,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 21:48:22,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 21:48:22,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 21:48:22,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 21:48:22,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 21:48:22,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 21:48:22,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 21:48:22,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 21:48:22,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 21:48:22,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 21:48:23,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 21:48:23,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 21:48:23,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 21:48:23,260 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 21:48:23,261 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 21:48:23,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-12-21 21:48:23,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b0023775/9c75a409cc3c4c96bbb231f9b3078b09/FLAGc32ae5615 [2020-12-21 21:48:24,135 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 21:48:24,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-12-21 21:48:24,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b0023775/9c75a409cc3c4c96bbb231f9b3078b09/FLAGc32ae5615 [2020-12-21 21:48:24,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b0023775/9c75a409cc3c4c96bbb231f9b3078b09 [2020-12-21 21:48:24,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 21:48:24,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 21:48:24,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 21:48:24,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 21:48:24,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 21:48:24,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:48:24" (1/1) ... [2020-12-21 21:48:24,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76351ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24, skipping insertion in model container [2020-12-21 21:48:24,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:48:24" (1/1) ... [2020-12-21 21:48:24,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 21:48:24,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 21:48:24,659 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2020-12-21 21:48:24,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 21:48:24,688 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 21:48:24,703 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2020-12-21 21:48:24,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 21:48:24,733 INFO L208 MainTranslator]: Completed translation [2020-12-21 21:48:24,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24 WrapperNode [2020-12-21 21:48:24,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 21:48:24,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 21:48:24,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 21:48:24,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 21:48:24,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24" (1/1) ... [2020-12-21 21:48:24,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24" (1/1) ... [2020-12-21 21:48:24,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 21:48:24,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 21:48:24,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 21:48:24,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 21:48:24,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24" (1/1) ... [2020-12-21 21:48:24,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24" (1/1) ... [2020-12-21 21:48:24,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24" (1/1) ... [2020-12-21 21:48:24,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24" (1/1) ... [2020-12-21 21:48:24,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24" (1/1) ... [2020-12-21 21:48:24,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24" (1/1) ... [2020-12-21 21:48:24,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24" (1/1) ... [2020-12-21 21:48:24,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 21:48:24,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 21:48:24,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 21:48:24,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 21:48:24,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24" (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 [2020-12-21 21:48:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-21 21:48:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 21:48:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-21 21:48:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 21:48:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-21 21:48:24,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 21:48:24,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 21:48:24,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-21 21:48:25,302 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 21:48:25,303 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-21 21:48:25,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:48:25 BoogieIcfgContainer [2020-12-21 21:48:25,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 21:48:25,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 21:48:25,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 21:48:25,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 21:48:25,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:48:24" (1/3) ... [2020-12-21 21:48:25,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bea9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:48:25, skipping insertion in model container [2020-12-21 21:48:25,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:48:24" (2/3) ... [2020-12-21 21:48:25,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bea9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:48:25, skipping insertion in model container [2020-12-21 21:48:25,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:48:25" (3/3) ... [2020-12-21 21:48:25,317 INFO L111 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2020-12-21 21:48:25,327 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 21:48:25,334 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-21 21:48:25,363 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-21 21:48:25,400 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 21:48:25,400 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 21:48:25,401 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 21:48:25,401 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 21:48:25,401 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 21:48:25,401 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 21:48:25,401 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 21:48:25,402 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 21:48:25,432 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-12-21 21:48:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-21 21:48:25,446 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:25,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:25,450 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:25,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:25,464 INFO L82 PathProgramCache]: Analyzing trace with hash -2060710478, now seen corresponding path program 1 times [2020-12-21 21:48:25,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:25,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327983352] [2020-12-21 21:48:25,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:25,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 21:48:25,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327983352] [2020-12-21 21:48:25,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 21:48:25,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 21:48:25,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039267387] [2020-12-21 21:48:25,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-21 21:48:25,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:25,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-21 21:48:25,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-21 21:48:25,719 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-12-21 21:48:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:25,738 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2020-12-21 21:48:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-21 21:48:25,740 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-21 21:48:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:25,751 INFO L225 Difference]: With dead ends: 36 [2020-12-21 21:48:25,751 INFO L226 Difference]: Without dead ends: 16 [2020-12-21 21:48:25,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-21 21:48:25,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-21 21:48:25,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-21 21:48:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-21 21:48:25,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2020-12-21 21:48:25,796 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 10 [2020-12-21 21:48:25,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:25,796 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2020-12-21 21:48:25,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-21 21:48:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-12-21 21:48:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-21 21:48:25,798 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:25,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:25,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 21:48:25,798 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:25,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:25,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1919336157, now seen corresponding path program 1 times [2020-12-21 21:48:25,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:25,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260275992] [2020-12-21 21:48:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 21:48:25,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260275992] [2020-12-21 21:48:25,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 21:48:25,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 21:48:25,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953056125] [2020-12-21 21:48:25,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 21:48:25,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:25,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 21:48:25,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 21:48:25,912 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand 3 states. [2020-12-21 21:48:25,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:25,957 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-12-21 21:48:25,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 21:48:25,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-21 21:48:25,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:25,959 INFO L225 Difference]: With dead ends: 30 [2020-12-21 21:48:25,960 INFO L226 Difference]: Without dead ends: 18 [2020-12-21 21:48:25,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 21:48:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-21 21:48:25,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-12-21 21:48:25,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-21 21:48:25,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2020-12-21 21:48:25,973 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2020-12-21 21:48:25,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:25,974 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-12-21 21:48:25,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 21:48:25,975 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2020-12-21 21:48:25,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-21 21:48:25,976 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:25,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:25,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-21 21:48:25,978 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:25,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1264138591, now seen corresponding path program 1 times [2020-12-21 21:48:25,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:25,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340596447] [2020-12-21 21:48:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-21 21:48:26,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340596447] [2020-12-21 21:48:26,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 21:48:26,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 21:48:26,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900746938] [2020-12-21 21:48:26,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 21:48:26,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:26,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 21:48:26,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 21:48:26,092 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2020-12-21 21:48:26,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:26,136 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2020-12-21 21:48:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 21:48:26,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-21 21:48:26,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:26,138 INFO L225 Difference]: With dead ends: 35 [2020-12-21 21:48:26,139 INFO L226 Difference]: Without dead ends: 27 [2020-12-21 21:48:26,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 21:48:26,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-21 21:48:26,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2020-12-21 21:48:26,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-21 21:48:26,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2020-12-21 21:48:26,145 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 12 [2020-12-21 21:48:26,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:26,145 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2020-12-21 21:48:26,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 21:48:26,145 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-12-21 21:48:26,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-21 21:48:26,146 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:26,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:26,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-21 21:48:26,147 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:26,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:26,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1458340319, now seen corresponding path program 1 times [2020-12-21 21:48:26,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:26,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878579306] [2020-12-21 21:48:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-21 21:48:26,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878579306] [2020-12-21 21:48:26,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973684274] [2020-12-21 21:48:26,207 INFO L95 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 [2020-12-21 21:48:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:26,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-21 21:48:26,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 21:48:26,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-21 21:48:26,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 21:48:26,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-21 21:48:26,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558887955] [2020-12-21 21:48:26,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 21:48:26,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:26,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 21:48:26,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-21 21:48:26,362 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 3 states. [2020-12-21 21:48:26,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:26,378 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-12-21 21:48:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 21:48:26,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-21 21:48:26,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:26,380 INFO L225 Difference]: With dead ends: 32 [2020-12-21 21:48:26,380 INFO L226 Difference]: Without dead ends: 18 [2020-12-21 21:48:26,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-21 21:48:26,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-21 21:48:26,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-21 21:48:26,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-21 21:48:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-12-21 21:48:26,385 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 15 [2020-12-21 21:48:26,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:26,385 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-12-21 21:48:26,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 21:48:26,386 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-12-21 21:48:26,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-21 21:48:26,386 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:26,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:26,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 21:48:26,601 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:26,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:26,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2027280351, now seen corresponding path program 1 times [2020-12-21 21:48:26,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:26,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066659539] [2020-12-21 21:48:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-21 21:48:26,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066659539] [2020-12-21 21:48:26,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932346550] [2020-12-21 21:48:26,652 INFO L95 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 [2020-12-21 21:48:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:26,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-21 21:48:26,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 21:48:26,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-21 21:48:26,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 21:48:26,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-12-21 21:48:26,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924670634] [2020-12-21 21:48:26,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-21 21:48:26,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:26,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-21 21:48:26,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-21 21:48:26,819 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 6 states. [2020-12-21 21:48:26,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:26,881 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-12-21 21:48:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-21 21:48:26,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-21 21:48:26,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:26,883 INFO L225 Difference]: With dead ends: 53 [2020-12-21 21:48:26,883 INFO L226 Difference]: Without dead ends: 40 [2020-12-21 21:48:26,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-21 21:48:26,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-21 21:48:26,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2020-12-21 21:48:26,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-21 21:48:26,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-12-21 21:48:26,890 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 15 [2020-12-21 21:48:26,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:26,890 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-12-21 21:48:26,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-21 21:48:26,890 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-12-21 21:48:26,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-21 21:48:26,891 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:26,891 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:27,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 21:48:27,105 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:27,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:27,107 INFO L82 PathProgramCache]: Analyzing trace with hash -2139127327, now seen corresponding path program 2 times [2020-12-21 21:48:27,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:27,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746497975] [2020-12-21 21:48:27,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-21 21:48:27,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746497975] [2020-12-21 21:48:27,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099913549] [2020-12-21 21:48:27,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2020-12-21 21:48:27,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-21 21:48:27,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-21 21:48:27,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-21 21:48:27,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 21:48:27,385 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-21 21:48:27,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 21:48:27,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-21 21:48:27,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039580552] [2020-12-21 21:48:27,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-21 21:48:27,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:27,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-21 21:48:27,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-21 21:48:27,388 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 8 states. [2020-12-21 21:48:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:27,425 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2020-12-21 21:48:27,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-21 21:48:27,427 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-12-21 21:48:27,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:27,434 INFO L225 Difference]: With dead ends: 42 [2020-12-21 21:48:27,434 INFO L226 Difference]: Without dead ends: 26 [2020-12-21 21:48:27,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-21 21:48:27,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-21 21:48:27,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2020-12-21 21:48:27,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-21 21:48:27,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-12-21 21:48:27,445 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 20 [2020-12-21 21:48:27,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:27,445 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-12-21 21:48:27,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-21 21:48:27,446 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-12-21 21:48:27,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-21 21:48:27,447 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:27,447 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:27,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 21:48:27,662 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:27,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:27,663 INFO L82 PathProgramCache]: Analyzing trace with hash -331071005, now seen corresponding path program 3 times [2020-12-21 21:48:27,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:27,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642695306] [2020-12-21 21:48:27,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-21 21:48:27,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642695306] [2020-12-21 21:48:27,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357382768] [2020-12-21 21:48:27,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2020-12-21 21:48:27,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-21 21:48:27,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-21 21:48:27,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-21 21:48:27,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 21:48:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-21 21:48:27,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 21:48:27,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2020-12-21 21:48:27,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547588882] [2020-12-21 21:48:27,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-21 21:48:27,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:27,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-21 21:48:27,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-21 21:48:27,893 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 9 states. [2020-12-21 21:48:27,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:27,961 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2020-12-21 21:48:27,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-21 21:48:27,962 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-12-21 21:48:27,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:27,963 INFO L225 Difference]: With dead ends: 70 [2020-12-21 21:48:27,963 INFO L226 Difference]: Without dead ends: 54 [2020-12-21 21:48:27,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-21 21:48:27,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-21 21:48:27,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 30. [2020-12-21 21:48:27,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-21 21:48:27,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-12-21 21:48:27,969 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 22 [2020-12-21 21:48:27,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:27,969 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-12-21 21:48:27,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-21 21:48:27,969 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-12-21 21:48:27,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-21 21:48:27,970 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:27,971 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:28,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 21:48:28,184 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:28,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:28,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1534672359, now seen corresponding path program 4 times [2020-12-21 21:48:28,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:28,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495197161] [2020-12-21 21:48:28,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-21 21:48:28,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495197161] [2020-12-21 21:48:28,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937691275] [2020-12-21 21:48:28,262 INFO L93 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 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 [2020-12-21 21:48:28,358 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-21 21:48:28,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-21 21:48:28,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-21 21:48:28,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 21:48:28,436 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-21 21:48:28,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 21:48:28,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2020-12-21 21:48:28,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776677783] [2020-12-21 21:48:28,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-21 21:48:28,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:28,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-21 21:48:28,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-12-21 21:48:28,439 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 11 states. [2020-12-21 21:48:28,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:28,531 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2020-12-21 21:48:28,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-21 21:48:28,532 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-12-21 21:48:28,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:28,533 INFO L225 Difference]: With dead ends: 85 [2020-12-21 21:48:28,533 INFO L226 Difference]: Without dead ends: 66 [2020-12-21 21:48:28,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-12-21 21:48:28,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-21 21:48:28,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 35. [2020-12-21 21:48:28,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-21 21:48:28,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-12-21 21:48:28,540 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 27 [2020-12-21 21:48:28,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:28,541 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-12-21 21:48:28,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-21 21:48:28,541 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-12-21 21:48:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-21 21:48:28,542 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:28,542 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:28,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 21:48:28,757 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:28,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:28,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1766720103, now seen corresponding path program 5 times [2020-12-21 21:48:28,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:28,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665570795] [2020-12-21 21:48:28,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:28,852 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-21 21:48:28,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665570795] [2020-12-21 21:48:28,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489513565] [2020-12-21 21:48:28,853 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2020-12-21 21:48:28,991 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-12-21 21:48:28,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-21 21:48:28,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-21 21:48:28,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 21:48:29,068 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-21 21:48:29,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 21:48:29,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2020-12-21 21:48:29,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185648329] [2020-12-21 21:48:29,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-21 21:48:29,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:29,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-21 21:48:29,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-12-21 21:48:29,071 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 13 states. [2020-12-21 21:48:29,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:29,172 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2020-12-21 21:48:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-21 21:48:29,173 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 32 [2020-12-21 21:48:29,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:29,174 INFO L225 Difference]: With dead ends: 100 [2020-12-21 21:48:29,174 INFO L226 Difference]: Without dead ends: 78 [2020-12-21 21:48:29,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-12-21 21:48:29,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-12-21 21:48:29,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 40. [2020-12-21 21:48:29,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-21 21:48:29,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-12-21 21:48:29,190 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 32 [2020-12-21 21:48:29,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:29,191 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-12-21 21:48:29,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-21 21:48:29,191 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-12-21 21:48:29,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-21 21:48:29,195 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:29,195 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:29,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 21:48:29,409 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:29,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:29,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1089794667, now seen corresponding path program 6 times [2020-12-21 21:48:29,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:29,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030951161] [2020-12-21 21:48:29,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-21 21:48:29,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030951161] [2020-12-21 21:48:29,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863879367] [2020-12-21 21:48:29,529 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2020-12-21 21:48:29,620 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2020-12-21 21:48:29,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-21 21:48:29,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-21 21:48:29,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 21:48:29,822 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-12-21 21:48:29,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 21:48:29,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2020-12-21 21:48:29,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460964409] [2020-12-21 21:48:29,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-21 21:48:29,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:29,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-21 21:48:29,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2020-12-21 21:48:29,828 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 15 states. [2020-12-21 21:48:30,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:30,145 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2020-12-21 21:48:30,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-21 21:48:30,145 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 37 [2020-12-21 21:48:30,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:30,146 INFO L225 Difference]: With dead ends: 77 [2020-12-21 21:48:30,146 INFO L226 Difference]: Without dead ends: 52 [2020-12-21 21:48:30,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2020-12-21 21:48:30,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-21 21:48:30,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2020-12-21 21:48:30,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-21 21:48:30,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-12-21 21:48:30,155 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 37 [2020-12-21 21:48:30,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:30,155 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-12-21 21:48:30,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-21 21:48:30,155 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-12-21 21:48:30,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-21 21:48:30,156 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:30,156 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:30,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-21 21:48:30,365 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:30,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:30,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1351978204, now seen corresponding path program 1 times [2020-12-21 21:48:30,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:30,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690916716] [2020-12-21 21:48:30,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-12-21 21:48:30,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690916716] [2020-12-21 21:48:30,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 21:48:30,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 21:48:30,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691214785] [2020-12-21 21:48:30,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 21:48:30,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:30,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 21:48:30,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 21:48:30,425 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 3 states. [2020-12-21 21:48:30,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:30,429 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2020-12-21 21:48:30,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 21:48:30,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-12-21 21:48:30,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:30,431 INFO L225 Difference]: With dead ends: 52 [2020-12-21 21:48:30,431 INFO L226 Difference]: Without dead ends: 45 [2020-12-21 21:48:30,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 21:48:30,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-21 21:48:30,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-21 21:48:30,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-21 21:48:30,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2020-12-21 21:48:30,437 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 42 [2020-12-21 21:48:30,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:30,437 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2020-12-21 21:48:30,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 21:48:30,437 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2020-12-21 21:48:30,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-21 21:48:30,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:30,438 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:30,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-21 21:48:30,439 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:30,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:30,439 INFO L82 PathProgramCache]: Analyzing trace with hash 2040020590, now seen corresponding path program 1 times [2020-12-21 21:48:30,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:30,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521519296] [2020-12-21 21:48:30,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-12-21 21:48:30,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521519296] [2020-12-21 21:48:30,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769534515] [2020-12-21 21:48:30,583 INFO L95 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 [2020-12-21 21:48:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:30,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-21 21:48:30,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 21:48:30,943 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-12-21 21:48:30,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 21:48:30,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2020-12-21 21:48:30,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646186472] [2020-12-21 21:48:30,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-21 21:48:30,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:30,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-21 21:48:30,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2020-12-21 21:48:30,946 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 18 states. [2020-12-21 21:48:30,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:30,998 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions. [2020-12-21 21:48:30,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-21 21:48:30,998 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 44 [2020-12-21 21:48:30,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:30,999 INFO L225 Difference]: With dead ends: 76 [2020-12-21 21:48:30,999 INFO L226 Difference]: Without dead ends: 48 [2020-12-21 21:48:31,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2020-12-21 21:48:31,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-12-21 21:48:31,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2020-12-21 21:48:31,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-21 21:48:31,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-12-21 21:48:31,009 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 44 [2020-12-21 21:48:31,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:31,009 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-12-21 21:48:31,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-21 21:48:31,009 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-12-21 21:48:31,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-21 21:48:31,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:31,013 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:31,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-21 21:48:31,215 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:31,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:31,216 INFO L82 PathProgramCache]: Analyzing trace with hash 461215856, now seen corresponding path program 2 times [2020-12-21 21:48:31,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:31,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605879287] [2020-12-21 21:48:31,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-12-21 21:48:31,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605879287] [2020-12-21 21:48:31,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773091202] [2020-12-21 21:48:31,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2020-12-21 21:48:31,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-21 21:48:31,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-21 21:48:31,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-21 21:48:31,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 21:48:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-12-21 21:48:31,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 21:48:31,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2020-12-21 21:48:31,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687608144] [2020-12-21 21:48:31,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-21 21:48:31,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:31,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-21 21:48:31,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2020-12-21 21:48:31,772 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 20 states. [2020-12-21 21:48:31,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:31,827 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2020-12-21 21:48:31,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-21 21:48:31,828 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 46 [2020-12-21 21:48:31,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:31,829 INFO L225 Difference]: With dead ends: 78 [2020-12-21 21:48:31,829 INFO L226 Difference]: Without dead ends: 50 [2020-12-21 21:48:31,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2020-12-21 21:48:31,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-21 21:48:31,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2020-12-21 21:48:31,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-12-21 21:48:31,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-12-21 21:48:31,836 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 46 [2020-12-21 21:48:31,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:31,836 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-12-21 21:48:31,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-21 21:48:31,836 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-12-21 21:48:31,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-21 21:48:31,837 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 21:48:31,837 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 21:48:32,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 21:48:32,052 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 21:48:32,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 21:48:32,053 INFO L82 PathProgramCache]: Analyzing trace with hash -646678030, now seen corresponding path program 3 times [2020-12-21 21:48:32,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 21:48:32,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250866310] [2020-12-21 21:48:32,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 21:48:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 21:48:32,275 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-12-21 21:48:32,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250866310] [2020-12-21 21:48:32,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68822148] [2020-12-21 21:48:32,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2020-12-21 21:48:32,348 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-21 21:48:32,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-21 21:48:32,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-21 21:48:32,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 21:48:32,442 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-12-21 21:48:32,443 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-21 21:48:32,452 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-21 21:48:32,454 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-21 21:48:32,454 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2020-12-21 21:48:32,688 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-21 21:48:32,689 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2020-12-21 21:48:32,693 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-21 21:48:32,697 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-21 21:48:32,708 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-21 21:48:32,711 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-21 21:48:32,714 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-21 21:48:32,715 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:33, output treesize:15 [2020-12-21 21:48:32,814 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-12-21 21:48:32,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 21:48:32,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2020-12-21 21:48:32,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848401217] [2020-12-21 21:48:32,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-21 21:48:32,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 21:48:32,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-21 21:48:32,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-12-21 21:48:32,817 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 19 states. [2020-12-21 21:48:34,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 21:48:34,408 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-12-21 21:48:34,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-21 21:48:34,408 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 48 [2020-12-21 21:48:34,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 21:48:34,409 INFO L225 Difference]: With dead ends: 69 [2020-12-21 21:48:34,409 INFO L226 Difference]: Without dead ends: 0 [2020-12-21 21:48:34,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=494, Invalid=1486, Unknown=0, NotChecked=0, Total=1980 [2020-12-21 21:48:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-21 21:48:34,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-21 21:48:34,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-21 21:48:34,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-21 21:48:34,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-12-21 21:48:34,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 21:48:34,412 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-21 21:48:34,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-21 21:48:34,412 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-21 21:48:34,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-21 21:48:34,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 21:48:34,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-21 21:48:34,839 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-21 21:48:34,933 INFO L189 CegarLoopUtils]: For program point L35-2(lines 35 41) no Hoare annotation was computed. [2020-12-21 21:48:34,934 INFO L185 CegarLoopUtils]: At program point L35-3(lines 35 41) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~#a~0.base| ULTIMATE.start_init_~a.base)) (.cse1 (exists ((v_ULTIMATE.start_init_~i~0_26 Int)) (and (<= 99999 v_ULTIMATE.start_init_~i~0_26) (not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* v_ULTIMATE.start_init_~i~0_26 8))))) (< v_ULTIMATE.start_init_~i~0_26 100000)))) (.cse2 (= |ULTIMATE.start_main_~#a~0.offset| 0)) (.cse3 (= |ULTIMATE.start_main_~#a~0.offset| ULTIMATE.start_init_~a.offset)) (.cse4 (= ULTIMATE.start_main_~flag~0 0)) (.cse5 (= ULTIMATE.start_init_~size 100000)) (.cse6 (exists ((v_ULTIMATE.start_init_~i~0_26 Int)) (and (not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* v_ULTIMATE.start_init_~i~0_26 8))))) (<= ULTIMATE.start_init_~i~0 (+ v_ULTIMATE.start_init_~i~0_26 1)) (< v_ULTIMATE.start_init_~i~0_26 ULTIMATE.start_init_~size))))) (or (<= 1 ULTIMATE.start_main_~flag~0) (and .cse0 (= ULTIMATE.start_main_~i~1 0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 (< ULTIMATE.start_main_~i~1 100000) .cse2 .cse3 .cse4 .cse5 .cse6 (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0.base|) |ULTIMATE.start_main_~#a~0.offset|) 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#a~0.base|) |ULTIMATE.start_main_~#a~0.offset|) 0)))) [2020-12-21 21:48:34,934 INFO L189 CegarLoopUtils]: For program point L35-4(lines 35 41) no Hoare annotation was computed. [2020-12-21 21:48:34,934 INFO L189 CegarLoopUtils]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2020-12-21 21:48:34,934 INFO L185 CegarLoopUtils]: At program point L23-3(lines 23 26) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~#a~0.base| ULTIMATE.start_init_~a.base)) (.cse1 (= |ULTIMATE.start_main_~#a~0.offset| 0)) (.cse2 (= |ULTIMATE.start_main_~#a~0.offset| ULTIMATE.start_init_~a.offset)) (.cse3 (= ULTIMATE.start_main_~flag~0 0)) (.cse4 (= ULTIMATE.start_init_~size 100000))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((v_ULTIMATE.start_init_~i~0_26 Int)) (and (not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* v_ULTIMATE.start_init_~i~0_26 8))))) (<= ULTIMATE.start_init_~i~0 (+ v_ULTIMATE.start_init_~i~0_26 1)) (< v_ULTIMATE.start_init_~i~0_26 ULTIMATE.start_init_~size)))) (and (= ULTIMATE.start_init_~i~0 0) .cse0 .cse1 .cse2 .cse3 .cse4))) [2020-12-21 21:48:34,934 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2020-12-21 21:48:34,934 INFO L189 CegarLoopUtils]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-12-21 21:48:34,935 INFO L189 CegarLoopUtils]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-12-21 21:48:34,935 INFO L189 CegarLoopUtils]: For program point L15-3(line 15) no Hoare annotation was computed. [2020-12-21 21:48:34,935 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-21 21:48:34,935 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-21 21:48:34,935 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-21 21:48:34,935 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2020-12-21 21:48:34,935 INFO L189 CegarLoopUtils]: For program point L20(lines 20 27) no Hoare annotation was computed. [2020-12-21 21:48:34,935 INFO L189 CegarLoopUtils]: For program point L37(lines 37 40) no Hoare annotation was computed. [2020-12-21 21:48:34,936 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-21 21:48:34,936 INFO L189 CegarLoopUtils]: For program point L42-2(lines 42 46) no Hoare annotation was computed. [2020-12-21 21:48:34,936 INFO L185 CegarLoopUtils]: At program point L42-3(lines 42 46) the Hoare annotation is: (<= 1 ULTIMATE.start_main_~flag~0) [2020-12-21 21:48:34,936 INFO L189 CegarLoopUtils]: For program point L42-4(lines 42 46) no Hoare annotation was computed. [2020-12-21 21:48:34,936 INFO L192 CegarLoopUtils]: At program point L47(lines 28 48) the Hoare annotation is: true [2020-12-21 21:48:34,949 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,953 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,955 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,955 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,955 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,956 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,956 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,956 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-12-21 21:48:34,962 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,962 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,962 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,963 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,963 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,963 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,964 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,964 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,964 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,965 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,965 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,965 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,965 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-12-21 21:48:34,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:34,970 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,971 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,971 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:34,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 09:48:34 BoogieIcfgContainer [2020-12-21 21:48:34,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 21:48:34,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 21:48:34,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 21:48:34,975 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 21:48:34,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:48:25" (3/4) ... [2020-12-21 21:48:34,980 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-21 21:48:34,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-21 21:48:34,992 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-21 21:48:34,992 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 21:48:34,992 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 21:48:35,023 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((a == a && a == 0) && a == a) && flag == 0) && size == 100000) && (\exists v_ULTIMATE.start_init_~i~0_26 : int :: (!(0 == #memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0_26 * 8]) && i <= v_ULTIMATE.start_init_~i~0_26 + 1) && v_ULTIMATE.start_init_~i~0_26 < size)) || (((((i == 0 && a == a) && a == 0) && a == a) && flag == 0) && size == 100000) [2020-12-21 21:48:35,023 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1 <= flag || (((((((a == a && i == 0) && (\exists v_ULTIMATE.start_init_~i~0_26 : int :: (99999 <= v_ULTIMATE.start_init_~i~0_26 && !(0 == #memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0_26 * 8])) && v_ULTIMATE.start_init_~i~0_26 < 100000)) && a == 0) && a == a) && flag == 0) && size == 100000) && (\exists v_ULTIMATE.start_init_~i~0_26 : int :: (!(0 == #memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0_26 * 8]) && i <= v_ULTIMATE.start_init_~i~0_26 + 1) && v_ULTIMATE.start_init_~i~0_26 < size))) || (((((((((a == a && (\exists v_ULTIMATE.start_init_~i~0_26 : int :: (99999 <= v_ULTIMATE.start_init_~i~0_26 && !(0 == #memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0_26 * 8])) && v_ULTIMATE.start_init_~i~0_26 < 100000)) && i < 100000) && a == 0) && a == a) && flag == 0) && size == 100000) && (\exists v_ULTIMATE.start_init_~i~0_26 : int :: (!(0 == #memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0_26 * 8]) && i <= v_ULTIMATE.start_init_~i~0_26 + 1) && v_ULTIMATE.start_init_~i~0_26 < size)) && #memory_$Pointer$[a][a] == 0) && #memory_$Pointer$[a][a] == 0) [2020-12-21 21:48:35,037 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/array-industry-pattern/array_of_struct_ptr_flag_init.i-witness.graphml [2020-12-21 21:48:35,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 21:48:35,038 INFO L168 Benchmark]: Toolchain (without parser) took 10576.74 ms. Allocated memory was 157.3 MB in the beginning and 226.5 MB in the end (delta: 69.2 MB). Free memory was 132.2 MB in the beginning and 143.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 58.8 MB. Max. memory is 8.0 GB. [2020-12-21 21:48:35,039 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 157.3 MB. Free memory is still 130.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 21:48:35,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.75 ms. Allocated memory is still 157.3 MB. Free memory was 132.0 MB in the beginning and 122.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-21 21:48:35,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.86 ms. Allocated memory is still 157.3 MB. Free memory was 121.9 MB in the beginning and 120.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-21 21:48:35,040 INFO L168 Benchmark]: Boogie Preprocessor took 30.96 ms. Allocated memory is still 157.3 MB. Free memory was 120.5 MB in the beginning and 119.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-21 21:48:35,041 INFO L168 Benchmark]: RCFGBuilder took 493.91 ms. Allocated memory is still 157.3 MB. Free memory was 119.2 MB in the beginning and 136.9 MB in the end (delta: -17.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-21 21:48:35,041 INFO L168 Benchmark]: TraceAbstraction took 9666.58 ms. Allocated memory was 157.3 MB in the beginning and 226.5 MB in the end (delta: 69.2 MB). Free memory was 136.4 MB in the beginning and 146.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 8.0 GB. [2020-12-21 21:48:35,042 INFO L168 Benchmark]: Witness Printer took 62.67 ms. Allocated memory is still 226.5 MB. Free memory was 146.3 MB in the beginning and 143.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-21 21:48:35,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 157.3 MB. Free memory is still 130.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 273.75 ms. Allocated memory is still 157.3 MB. Free memory was 132.0 MB in the beginning and 122.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 40.86 ms. Allocated memory is still 157.3 MB. Free memory was 121.9 MB in the beginning and 120.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.96 ms. Allocated memory is still 157.3 MB. Free memory was 120.5 MB in the beginning and 119.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 493.91 ms. Allocated memory is still 157.3 MB. Free memory was 119.2 MB in the beginning and 136.9 MB in the end (delta: -17.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9666.58 ms. Allocated memory was 157.3 MB in the beginning and 226.5 MB in the end (delta: 69.2 MB). Free memory was 136.4 MB in the beginning and 146.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 8.0 GB. * Witness Printer took 62.67 ms. Allocated memory is still 226.5 MB. Free memory was 146.3 MB in the beginning and 143.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant [2020-12-21 21:48:35,053 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,054 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,054 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,055 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,056 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,057 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,057 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-12-21 21:48:35,058 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,058 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,059 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,060 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,060 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,061 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,061 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: (1 <= flag || (((((((a == a && i == 0) && (\exists v_ULTIMATE.start_init_~i~0_26 : int :: (99999 <= v_ULTIMATE.start_init_~i~0_26 && !(0 == #memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0_26 * 8])) && v_ULTIMATE.start_init_~i~0_26 < 100000)) && a == 0) && a == a) && flag == 0) && size == 100000) && (\exists v_ULTIMATE.start_init_~i~0_26 : int :: (!(0 == #memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0_26 * 8]) && i <= v_ULTIMATE.start_init_~i~0_26 + 1) && v_ULTIMATE.start_init_~i~0_26 < size))) || (((((((((a == a && (\exists v_ULTIMATE.start_init_~i~0_26 : int :: (99999 <= v_ULTIMATE.start_init_~i~0_26 && !(0 == #memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0_26 * 8])) && v_ULTIMATE.start_init_~i~0_26 < 100000)) && i < 100000) && a == 0) && a == a) && flag == 0) && size == 100000) && (\exists v_ULTIMATE.start_init_~i~0_26 : int :: (!(0 == #memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0_26 * 8]) && i <= v_ULTIMATE.start_init_~i~0_26 + 1) && v_ULTIMATE.start_init_~i~0_26 < size)) && #memory_$Pointer$[a][a] == 0) && #memory_$Pointer$[a][a] == 0) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 <= flag - InvariantResult [Line: 23]: Loop Invariant [2020-12-21 21:48:35,063 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,063 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,063 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,064 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,064 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-21 21:48:35,065 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,065 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] [2020-12-21 21:48:35,065 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0_26,QUANTIFIED] Derived loop invariant: (((((a == a && a == 0) && a == a) && flag == 0) && size == 100000) && (\exists v_ULTIMATE.start_init_~i~0_26 : int :: (!(0 == #memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0_26 * 8]) && i <= v_ULTIMATE.start_init_~i~0_26 + 1) && v_ULTIMATE.start_init_~i~0_26 < size)) || (((((i == 0 && a == a) && a == 0) && a == a) && flag == 0) && size == 100000) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.2s, OverallIterations: 14, TraceHistogramMax: 9, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 210 SDtfs, 287 SDslu, 630 SDs, 0 SdLazy, 554 SolverSat, 77 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 419 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 130 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 23 NumberOfFragments, 202 HoareAnnotationTreeSize, 4 FomulaSimplifications, 684 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 686 NumberOfCodeBlocks, 651 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 662 ConstructedInterpolants, 15 QuantifiedInterpolants, 93071 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1546 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 24 InterpolantComputations, 5 PerfectInterpolantSequences, 567/1049 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...