/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-lopstr16/flag_loopdep.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:31:40,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:31:40,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:31:40,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:31:40,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:31:40,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:31:40,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:31:40,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:31:40,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:31:40,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:31:40,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:31:40,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:31:40,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:31:40,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:31:40,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:31:40,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:31:40,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:31:40,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:31:40,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:31:40,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:31:40,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:31:40,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:31:40,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:31:40,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:31:40,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:31:40,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:31:40,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:31:40,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:31:40,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:31:40,923 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:31:40,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:31:40,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:31:40,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:31:40,926 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:31:40,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:31:40,926 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:31:40,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:31:40,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:31:40,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:31:40,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:31:40,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:31:40,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:31:40,928 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:31:40,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:31:40,928 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:31:40,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:31:40,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:31:40,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:31:40,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:31:40,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:31:40,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:31:40,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:31:40,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:31:40,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:31:40,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:31:40,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:31:40,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:31:40,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:31:40,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:31:41,255 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:31:41,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:31:41,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:31:41,287 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:31:41,287 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:31:41,288 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-lopstr16/flag_loopdep.i [2020-07-07 11:31:41,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14605b043/ebccd2e148df43608ff0aef6303c9769/FLAGee7033b50 [2020-07-07 11:31:41,912 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:31:41,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-lopstr16/flag_loopdep.i [2020-07-07 11:31:41,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14605b043/ebccd2e148df43608ff0aef6303c9769/FLAGee7033b50 [2020-07-07 11:31:42,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14605b043/ebccd2e148df43608ff0aef6303c9769 [2020-07-07 11:31:42,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:31:42,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:31:42,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:31:42,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:31:42,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:31:42,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:31:42" (1/1) ... [2020-07-07 11:31:42,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b59d8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:42, skipping insertion in model container [2020-07-07 11:31:42,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:31:42" (1/1) ... [2020-07-07 11:31:42,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:31:42,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:31:42,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:31:42,549 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:31:42,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:31:42,590 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:31:42,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:42 WrapperNode [2020-07-07 11:31:42,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:31:42,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:31:42,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:31:42,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:31:42,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:42" (1/1) ... [2020-07-07 11:31:42,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:42" (1/1) ... [2020-07-07 11:31:42,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:42" (1/1) ... [2020-07-07 11:31:42,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:42" (1/1) ... [2020-07-07 11:31:42,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:42" (1/1) ... [2020-07-07 11:31:42,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:42" (1/1) ... [2020-07-07 11:31:42,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:42" (1/1) ... [2020-07-07 11:31:42,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:31:42,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:31:42,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:31:42,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:31:42,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:42" (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 [2020-07-07 11:31:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:31:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:31:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 11:31:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-07-07 11:31:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:31:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:31:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 11:31:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 11:31:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_pointer [2020-07-07 11:31:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-07-07 11:31:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 11:31:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 11:31:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:31:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 11:31:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 11:31:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 11:31:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:31:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:31:43,107 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:31:43,108 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-07 11:31:43,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:31:43 BoogieIcfgContainer [2020-07-07 11:31:43,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:31:43,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:31:43,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:31:43,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:31:43,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:31:42" (1/3) ... [2020-07-07 11:31:43,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fe8e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:31:43, skipping insertion in model container [2020-07-07 11:31:43,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:42" (2/3) ... [2020-07-07 11:31:43,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fe8e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:31:43, skipping insertion in model container [2020-07-07 11:31:43,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:31:43" (3/3) ... [2020-07-07 11:31:43,126 INFO L109 eAbstractionObserver]: Analyzing ICFG flag_loopdep.i [2020-07-07 11:31:43,139 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:31:43,149 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:31:43,169 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:31:43,199 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:31:43,199 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:31:43,200 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:31:43,200 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:31:43,200 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:31:43,200 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:31:43,201 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:31:43,201 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:31:43,231 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-07 11:31:43,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-07 11:31:43,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:43,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:31:43,246 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:43,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:43,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1059974619, now seen corresponding path program 1 times [2020-07-07 11:31:43,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:43,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938759236] [2020-07-07 11:31:43,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:43,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:31:43,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938759236] [2020-07-07 11:31:43,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:31:43,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:31:43,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674555667] [2020-07-07 11:31:43,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:31:43,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:43,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:31:43,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:31:43,533 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2020-07-07 11:31:43,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:43,702 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2020-07-07 11:31:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:31:43,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-07-07 11:31:43,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:43,717 INFO L225 Difference]: With dead ends: 59 [2020-07-07 11:31:43,717 INFO L226 Difference]: Without dead ends: 31 [2020-07-07 11:31:43,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:31:43,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-07-07 11:31:43,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2020-07-07 11:31:43,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-07 11:31:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-07-07 11:31:43,765 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 20 [2020-07-07 11:31:43,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:43,766 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-07-07 11:31:43,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:31:43,766 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-07-07 11:31:43,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-07 11:31:43,767 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:43,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:31:43,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:31:43,768 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:43,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:43,769 INFO L82 PathProgramCache]: Analyzing trace with hash -931069882, now seen corresponding path program 1 times [2020-07-07 11:31:43,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:43,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479764249] [2020-07-07 11:31:43,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:44,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:31:44,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479764249] [2020-07-07 11:31:44,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:31:44,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:31:44,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680844854] [2020-07-07 11:31:44,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:31:44,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:44,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:31:44,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:31:44,049 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-07-07 11:31:44,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:44,346 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-07-07 11:31:44,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:31:44,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-07-07 11:31:44,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:44,348 INFO L225 Difference]: With dead ends: 48 [2020-07-07 11:31:44,349 INFO L226 Difference]: Without dead ends: 30 [2020-07-07 11:31:44,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:31:44,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-07 11:31:44,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-07-07 11:31:44,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-07 11:31:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-07-07 11:31:44,371 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 20 [2020-07-07 11:31:44,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:44,372 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-07-07 11:31:44,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:31:44,373 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-07-07 11:31:44,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-07 11:31:44,377 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:44,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:31:44,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:31:44,379 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:44,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:44,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1782065480, now seen corresponding path program 1 times [2020-07-07 11:31:44,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:44,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427723199] [2020-07-07 11:31:44,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:31:44,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427723199] [2020-07-07 11:31:44,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991447619] [2020-07-07 11:31:44,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:44,702 INFO L264 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-07 11:31:44,710 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:44,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:31:44,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:31:44,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-07 11:31:44,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892224703] [2020-07-07 11:31:44,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:31:44,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:44,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:31:44,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:31:44,755 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2020-07-07 11:31:44,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:44,788 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2020-07-07 11:31:44,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:31:44,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-07 11:31:44,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:44,792 INFO L225 Difference]: With dead ends: 49 [2020-07-07 11:31:44,792 INFO L226 Difference]: Without dead ends: 37 [2020-07-07 11:31:44,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:31:44,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-07 11:31:44,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2020-07-07 11:31:44,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-07 11:31:44,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-07-07 11:31:44,806 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2020-07-07 11:31:44,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:44,806 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-07-07 11:31:44,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:31:44,807 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-07-07 11:31:44,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-07 11:31:44,808 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:44,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:31:45,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-07 11:31:45,023 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:45,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:45,024 INFO L82 PathProgramCache]: Analyzing trace with hash 413319423, now seen corresponding path program 1 times [2020-07-07 11:31:45,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:45,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343905220] [2020-07-07 11:31:45,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:31:45,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343905220] [2020-07-07 11:31:45,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376782735] [2020-07-07 11:31:45,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,145 INFO L264 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-07 11:31:45,147 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:45,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:31:45,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:31:45,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-07 11:31:45,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175353290] [2020-07-07 11:31:45,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:31:45,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:45,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:31:45,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:31:45,168 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 3 states. [2020-07-07 11:31:45,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:45,183 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-07-07 11:31:45,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:31:45,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-07 11:31:45,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:45,185 INFO L225 Difference]: With dead ends: 48 [2020-07-07 11:31:45,185 INFO L226 Difference]: Without dead ends: 30 [2020-07-07 11:31:45,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:31:45,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-07 11:31:45,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-07 11:31:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-07 11:31:45,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-07-07 11:31:45,192 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 25 [2020-07-07 11:31:45,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:45,193 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-07-07 11:31:45,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:31:45,193 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-07-07 11:31:45,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-07 11:31:45,194 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:45,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:31:45,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:45,409 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:45,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:45,410 INFO L82 PathProgramCache]: Analyzing trace with hash 20292413, now seen corresponding path program 1 times [2020-07-07 11:31:45,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:45,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461392714] [2020-07-07 11:31:45,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:31:45,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461392714] [2020-07-07 11:31:45,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507922717] [2020-07-07 11:31:45,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,551 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-07 11:31:45,553 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:45,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:31:45,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:45,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2020-07-07 11:31:45,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770938055] [2020-07-07 11:31:45,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:31:45,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:45,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:31:45,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:31:45,598 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 9 states. [2020-07-07 11:31:45,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:45,801 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2020-07-07 11:31:45,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:31:45,802 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-07-07 11:31:45,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:45,804 INFO L225 Difference]: With dead ends: 67 [2020-07-07 11:31:45,804 INFO L226 Difference]: Without dead ends: 48 [2020-07-07 11:31:45,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-07-07 11:31:45,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-07 11:31:45,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 35. [2020-07-07 11:31:45,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-07 11:31:45,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-07-07 11:31:45,813 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 25 [2020-07-07 11:31:45,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:45,813 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-07-07 11:31:45,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:31:45,814 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-07-07 11:31:45,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-07 11:31:45,815 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:45,815 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:31:46,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:46,029 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:46,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:46,031 INFO L82 PathProgramCache]: Analyzing trace with hash -40898518, now seen corresponding path program 2 times [2020-07-07 11:31:46,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:46,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26942938] [2020-07-07 11:31:46,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-07 11:31:46,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26942938] [2020-07-07 11:31:46,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026501712] [2020-07-07 11:31:46,312 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-07 11:31:46,368 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-07 11:31:46,368 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 11:31:46,370 INFO L264 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:31:46,372 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-07 11:31:46,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:46,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-07-07 11:31:46,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698783] [2020-07-07 11:31:46,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 11:31:46,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:46,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 11:31:46,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:31:46,426 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 11 states. [2020-07-07 11:31:46,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:46,763 INFO L93 Difference]: Finished difference Result 80 states and 93 transitions. [2020-07-07 11:31:46,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 11:31:46,763 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-07-07 11:31:46,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:46,765 INFO L225 Difference]: With dead ends: 80 [2020-07-07 11:31:46,765 INFO L226 Difference]: Without dead ends: 58 [2020-07-07 11:31:46,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-07-07 11:31:46,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-07-07 11:31:46,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 40. [2020-07-07 11:31:46,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-07 11:31:46,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-07-07 11:31:46,774 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 30 [2020-07-07 11:31:46,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:46,774 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-07-07 11:31:46,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 11:31:46,774 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-07-07 11:31:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-07 11:31:46,775 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:46,776 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:31:46,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:46,990 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:46,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:46,991 INFO L82 PathProgramCache]: Analyzing trace with hash -577379495, now seen corresponding path program 3 times [2020-07-07 11:31:46,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:46,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947510346] [2020-07-07 11:31:46,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:47,196 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-07 11:31:47,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947510346] [2020-07-07 11:31:47,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384307080] [2020-07-07 11:31:47,197 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-07 11:31:47,245 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-07-07 11:31:47,245 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 11:31:47,247 INFO L264 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-07 11:31:47,250 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:47,425 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-07 11:31:47,426 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:31:47,437 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:47,440 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-07 11:31:47,441 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-07 11:31:47,446 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:47,446 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:31:47,446 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2020-07-07 11:31:47,501 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-07 11:31:47,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:47,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-07-07 11:31:47,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567088071] [2020-07-07 11:31:47,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-07 11:31:47,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:47,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-07 11:31:47,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-07-07 11:31:47,504 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 17 states. [2020-07-07 11:31:47,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:47,879 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2020-07-07 11:31:47,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-07 11:31:47,880 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2020-07-07 11:31:47,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:47,881 INFO L225 Difference]: With dead ends: 77 [2020-07-07 11:31:47,882 INFO L226 Difference]: Without dead ends: 52 [2020-07-07 11:31:47,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2020-07-07 11:31:47,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-07-07 11:31:47,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2020-07-07 11:31:47,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-07-07 11:31:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-07-07 11:31:47,897 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 35 [2020-07-07 11:31:47,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:47,899 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-07-07 11:31:47,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-07 11:31:47,899 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-07-07 11:31:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-07 11:31:47,903 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:47,903 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:31:48,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-07 11:31:48,121 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:48,122 INFO L82 PathProgramCache]: Analyzing trace with hash -749708025, now seen corresponding path program 1 times [2020-07-07 11:31:48,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:48,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543248282] [2020-07-07 11:31:48,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:48,383 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-07 11:31:48,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543248282] [2020-07-07 11:31:48,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993157728] [2020-07-07 11:31:48,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:48,445 INFO L264 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-07 11:31:48,447 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:48,480 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-07 11:31:48,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:31:48,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2020-07-07 11:31:48,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695904689] [2020-07-07 11:31:48,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:31:48,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:48,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:31:48,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:31:48,483 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 3 states. [2020-07-07 11:31:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:48,490 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2020-07-07 11:31:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:31:48,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-07-07 11:31:48,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:48,492 INFO L225 Difference]: With dead ends: 60 [2020-07-07 11:31:48,492 INFO L226 Difference]: Without dead ends: 49 [2020-07-07 11:31:48,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:31:48,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-07-07 11:31:48,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-07-07 11:31:48,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-07-07 11:31:48,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-07-07 11:31:48,500 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 40 [2020-07-07 11:31:48,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:48,501 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-07-07 11:31:48,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:31:48,501 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-07-07 11:31:48,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 11:31:48,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:48,503 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:31:48,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:48,717 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:48,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:48,717 INFO L82 PathProgramCache]: Analyzing trace with hash 379746771, now seen corresponding path program 1 times [2020-07-07 11:31:48,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:48,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462591626] [2020-07-07 11:31:48,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:48,960 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-07 11:31:48,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462591626] [2020-07-07 11:31:48,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812656714] [2020-07-07 11:31:48,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:49,014 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-07 11:31:49,017 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:49,123 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-07 11:31:49,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:49,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2020-07-07 11:31:49,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650380200] [2020-07-07 11:31:49,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-07 11:31:49,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:49,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-07 11:31:49,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:31:49,126 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 16 states. [2020-07-07 11:31:49,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:49,553 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2020-07-07 11:31:49,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 11:31:49,555 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 46 [2020-07-07 11:31:49,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:49,556 INFO L225 Difference]: With dead ends: 84 [2020-07-07 11:31:49,556 INFO L226 Difference]: Without dead ends: 52 [2020-07-07 11:31:49,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2020-07-07 11:31:49,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-07-07 11:31:49,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2020-07-07 11:31:49,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-07-07 11:31:49,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-07-07 11:31:49,565 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 46 [2020-07-07 11:31:49,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:49,565 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-07-07 11:31:49,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-07 11:31:49,566 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-07-07 11:31:49,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-07 11:31:49,567 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:49,567 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:31:49,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:49,777 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:49,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:49,778 INFO L82 PathProgramCache]: Analyzing trace with hash -538278827, now seen corresponding path program 2 times [2020-07-07 11:31:49,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:49,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028922130] [2020-07-07 11:31:49,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-07 11:31:50,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028922130] [2020-07-07 11:31:50,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187918631] [2020-07-07 11:31:50,092 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-07 11:31:50,156 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-07 11:31:50,157 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 11:31:50,158 INFO L264 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-07 11:31:50,170 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:50,299 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-07 11:31:50,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:50,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2020-07-07 11:31:50,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345128179] [2020-07-07 11:31:50,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-07 11:31:50,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:50,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-07 11:31:50,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2020-07-07 11:31:50,303 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 18 states. [2020-07-07 11:31:50,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:50,737 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2020-07-07 11:31:50,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 11:31:50,738 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 48 [2020-07-07 11:31:50,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:50,739 INFO L225 Difference]: With dead ends: 86 [2020-07-07 11:31:50,739 INFO L226 Difference]: Without dead ends: 54 [2020-07-07 11:31:50,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2020-07-07 11:31:50,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-07-07 11:31:50,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2020-07-07 11:31:50,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-07-07 11:31:50,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2020-07-07 11:31:50,752 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 48 [2020-07-07 11:31:50,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:50,752 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2020-07-07 11:31:50,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-07 11:31:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-07-07 11:31:50,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-07 11:31:50,753 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:50,753 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:31:50,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-07 11:31:50,954 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:50,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:50,954 INFO L82 PathProgramCache]: Analyzing trace with hash 2002384471, now seen corresponding path program 3 times [2020-07-07 11:31:50,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:50,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420710729] [2020-07-07 11:31:50,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:51,252 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-07 11:31:51,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420710729] [2020-07-07 11:31:51,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804428595] [2020-07-07 11:31:51,253 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-07 11:31:51,300 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-07-07 11:31:51,300 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 11:31:51,302 INFO L264 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2020-07-07 11:31:51,305 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:51,351 INFO L384 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 [2020-07-07 11:31:51,351 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:31:51,368 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:51,369 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:31:51,370 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2020-07-07 11:31:51,589 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:51,590 INFO L384 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 [2020-07-07 11:31:51,591 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:31:51,596 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-07 11:31:51,607 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:51,609 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-07 11:31:51,611 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-07 11:31:51,612 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:33, output treesize:27 [2020-07-07 11:31:51,613 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-07 11:31:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-07 11:31:51,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:51,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2020-07-07 11:31:51,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145322179] [2020-07-07 11:31:51,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-07 11:31:51,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:51,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-07 11:31:51,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2020-07-07 11:31:51,737 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 20 states. [2020-07-07 11:31:53,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:53,103 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-07-07 11:31:53,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-07 11:31:53,108 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 50 [2020-07-07 11:31:53,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:53,108 INFO L225 Difference]: With dead ends: 69 [2020-07-07 11:31:53,108 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:31:53,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=325, Invalid=1397, Unknown=0, NotChecked=0, Total=1722 [2020-07-07 11:31:53,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:31:53,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:31:53,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:31:53,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:31:53,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2020-07-07 11:31:53,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:53,111 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:31:53,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-07 11:31:53,112 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:31:53,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:31:53,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:53,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:31:53,590 INFO L264 CegarLoopResult]: At program point initENTRY(lines 9 16) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-07 11:31:53,591 INFO L268 CegarLoopResult]: For program point initEXIT(lines 9 16) no Hoare annotation was computed. [2020-07-07 11:31:53,591 INFO L268 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-07-07 11:31:53,592 INFO L264 CegarLoopResult]: At program point L12-3(lines 12 15) the Hoare annotation is: (let ((.cse0 (= init_~a.base |init_#in~a.base|)) (.cse1 (= |init_#in~size| init_~size)) (.cse2 (= init_~a.offset |init_#in~a.offset|))) (or (and (exists ((v_init_~i~0_17 Int)) (and (not (= 0 (select (select |#memory_$Pointer$.base| |init_#in~a.base|) (+ |init_#in~a.offset| (* v_init_~i~0_17 4))))) (<= init_~i~0 (+ v_init_~i~0_17 1)) (< v_init_~i~0_17 init_~size))) .cse0 .cse1 .cse2) (and (<= init_~i~0 0) (= |#valid| |old(#valid)|) .cse0 .cse1 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) .cse2 (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)))) [2020-07-07 11:31:53,592 INFO L268 CegarLoopResult]: For program point L12-4(lines 9 16) no Hoare annotation was computed. [2020-07-07 11:31:53,592 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:31:53,592 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-07 11:31:53,592 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:31:53,593 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:31:53,593 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 11:31:53,593 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:31:53,594 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:31:53,594 INFO L268 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-07-07 11:31:53,594 INFO L268 CegarLoopResult]: For program point L31-2(lines 31 35) no Hoare annotation was computed. [2020-07-07 11:31:53,595 INFO L264 CegarLoopResult]: At program point L31-3(lines 31 35) the Hoare annotation is: (<= 1 main_~flag~0) [2020-07-07 11:31:53,595 INFO L268 CegarLoopResult]: For program point L31-4(lines 31 35) no Hoare annotation was computed. [2020-07-07 11:31:53,595 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 37) no Hoare annotation was computed. [2020-07-07 11:31:53,595 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= 0 main_~flag~0) (= 0 |main_~#a~0.offset|)) [2020-07-07 11:31:53,595 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-07-07 11:31:53,595 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 37) no Hoare annotation was computed. [2020-07-07 11:31:53,596 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: false [2020-07-07 11:31:53,596 INFO L268 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-07-07 11:31:53,596 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 37) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-07 11:31:53,596 INFO L268 CegarLoopResult]: For program point L26(lines 26 29) no Hoare annotation was computed. [2020-07-07 11:31:53,596 INFO L268 CegarLoopResult]: For program point L24-2(lines 24 30) no Hoare annotation was computed. [2020-07-07 11:31:53,596 INFO L264 CegarLoopResult]: At program point L24-3(lines 24 30) the Hoare annotation is: (let ((.cse0 (exists ((v_init_~i~0_17 Int)) (and (not (= 0 (select (select |#memory_$Pointer$.base| |main_~#a~0.base|) (+ (* v_init_~i~0_17 4) |main_~#a~0.offset|)))) (< v_init_~i~0_17 1000000) (<= 999999 v_init_~i~0_17)))) (.cse1 (= 0 main_~flag~0)) (.cse2 (= 0 |main_~#a~0.offset|))) (or (and .cse0 (<= main_~i~1 999999) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#a~0.base|) |main_~#a~0.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |main_~#a~0.base|) |main_~#a~0.offset|)) .cse1 .cse2) (and .cse0 (= 0 main_~i~1) .cse1 .cse2) (<= 1 main_~flag~0))) [2020-07-07 11:31:53,597 INFO L268 CegarLoopResult]: For program point L24-4(lines 24 30) no Hoare annotation was computed. [2020-07-07 11:31:53,597 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed. [2020-07-07 11:31:53,597 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed. [2020-07-07 11:31:53,597 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2020-07-07 11:31:53,597 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2020-07-07 11:31:53,597 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2020-07-07 11:31:53,597 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed. [2020-07-07 11:31:53,622 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,625 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,626 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,626 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,628 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,630 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,630 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,631 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,631 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,639 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,640 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,640 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,641 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,642 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,643 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,644 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,646 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,647 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,647 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,656 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,657 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:53,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:53,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,670 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,673 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,673 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,674 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,674 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:53,674 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:53,674 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,675 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:31:53 BoogieIcfgContainer [2020-07-07 11:31:53,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:31:53,680 INFO L168 Benchmark]: Toolchain (without parser) took 11390.49 ms. Allocated memory was 146.3 MB in the beginning and 293.6 MB in the end (delta: 147.3 MB). Free memory was 104.4 MB in the beginning and 146.0 MB in the end (delta: -41.6 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:53,681 INFO L168 Benchmark]: CDTParser took 1.97 ms. Allocated memory is still 146.3 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 11:31:53,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.60 ms. Allocated memory is still 146.3 MB. Free memory was 104.0 MB in the beginning and 93.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:53,694 INFO L168 Benchmark]: Boogie Preprocessor took 151.91 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 93.8 MB in the beginning and 181.4 MB in the end (delta: -87.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:53,694 INFO L168 Benchmark]: RCFGBuilder took 370.30 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 164.4 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:53,695 INFO L168 Benchmark]: TraceAbstraction took 10562.02 ms. Allocated memory was 203.9 MB in the beginning and 293.6 MB in the end (delta: 89.7 MB). Free memory was 164.4 MB in the beginning and 146.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 108.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:53,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.97 ms. Allocated memory is still 146.3 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 300.60 ms. Allocated memory is still 146.3 MB. Free memory was 104.0 MB in the beginning and 93.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 151.91 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 93.8 MB in the beginning and 181.4 MB in the end (delta: -87.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 370.30 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 164.4 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10562.02 ms. Allocated memory was 203.9 MB in the beginning and 293.6 MB in the end (delta: 89.7 MB). Free memory was 164.4 MB in the beginning and 146.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 108.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] - 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 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_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,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_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] - 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 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_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,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_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,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_$Pointer$.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_$Pointer$.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_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,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_$Pointer$.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_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 <= flag - InvariantResult [Line: 24]: Loop Invariant [2020-07-07 11:31:53,718 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,720 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,720 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,720 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,722 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,722 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,723 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,724 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,724 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,724 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,725 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,725 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,727 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,727 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((((((\exists v_init_~i~0_17 : int :: (!(0 == #memory_$Pointer$[a][v_init_~i~0_17 * 4 + a]) && v_init_~i~0_17 < 1000000) && 999999 <= v_init_~i~0_17) && i <= 999999) && 0 == #memory_$Pointer$[a][a]) && 0 == #memory_$Pointer$[a][a]) && 0 == flag) && 0 == a) || ((((\exists v_init_~i~0_17 : int :: (!(0 == #memory_$Pointer$[a][v_init_~i~0_17 * 4 + a]) && v_init_~i~0_17 < 1000000) && 999999 <= v_init_~i~0_17) && 0 == i) && 0 == flag) && 0 == a)) || 1 <= flag - InvariantResult [Line: 12]: Loop Invariant [2020-07-07 11:31:53,728 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,730 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,730 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,731 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,731 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,731 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,733 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:53,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:53,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,736 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:53,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:53,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:53,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:53,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:53,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:53,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((\exists v_init_~i~0_17 : int :: (!(0 == #memory_$Pointer$[a][a + v_init_~i~0_17 * 4]) && i <= v_init_~i~0_17 + 1) && v_init_~i~0_17 < size) && a == a) && \old(size) == size) && a == a) || (((((((i <= 0 && \valid == \old(\valid)) && a == a) && \old(size) == size) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(unknown-#length-unknown) == unknown-#length-unknown) && a == a) && #memory_$Pointer$ == \old(#memory_$Pointer$)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.1s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 276 SDtfs, 231 SDslu, 879 SDs, 0 SdLazy, 1000 SolverSat, 123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 484 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 47 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 24 PreInvPairs, 37 NumberOfFragments, 186 HoareAnnotationTreeSize, 24 FomulaSimplifications, 417 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 682 NumberOfCodeBlocks, 666 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 662 ConstructedInterpolants, 12 QuantifiedInterpolants, 103213 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1307 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 207/386 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...