/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-industry-pattern/array_of_struct_ptr_flag_init.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:31:38,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:31:38,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:31:38,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:31:38,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:31:38,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:31:38,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:31:38,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:31:38,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:31:38,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:31:38,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:31:38,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:31:38,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:31:38,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:31:38,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:31:38,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:31:38,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:31:38,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:31:38,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:31:38,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:31:38,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:31:38,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:31:38,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:31:38,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:31:38,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:31:38,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:31:38,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:31:38,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:31:38,142 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 11:31:38,157 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:31:38,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:31:38,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:31:38,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:31:38,159 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:31:38,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:31:38,159 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:31:38,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:31:38,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:31:38,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:31:38,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:31:38,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:31:38,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:31:38,160 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:31:38,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:31:38,161 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:31:38,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:31:38,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:31:38,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:31:38,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:31:38,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:31:38,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:31:38,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:31:38,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:31:38,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:31:38,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:31:38,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:31:38,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:31:38,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:31:38,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:31:38,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:31:38,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:31:38,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:31:38,464 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:31:38,464 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:31:38,465 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-07-07 11:31:38,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b5468a3e/0bed420221244e0281aedc6d9c2a11c1/FLAGbb0312e1b [2020-07-07 11:31:39,079 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:31:39,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-07-07 11:31:39,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b5468a3e/0bed420221244e0281aedc6d9c2a11c1/FLAGbb0312e1b [2020-07-07 11:31:39,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b5468a3e/0bed420221244e0281aedc6d9c2a11c1 [2020-07-07 11:31:39,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:31:39,429 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:31:39,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:31:39,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:31:39,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:31:39,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:31:39" (1/1) ... [2020-07-07 11:31:39,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ca554f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:39, skipping insertion in model container [2020-07-07 11:31:39,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:31:39" (1/1) ... [2020-07-07 11:31:39,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:31:39,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:31:39,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:31:39,706 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:31:39,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:31:39,758 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:31:39,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:39 WrapperNode [2020-07-07 11:31:39,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:31:39,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:31:39,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:31:39,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:31:39,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:39" (1/1) ... [2020-07-07 11:31:39,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:39" (1/1) ... [2020-07-07 11:31:39,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:39" (1/1) ... [2020-07-07 11:31:39,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:39" (1/1) ... [2020-07-07 11:31:39,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:39" (1/1) ... [2020-07-07 11:31:39,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:39" (1/1) ... [2020-07-07 11:31:39,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:39" (1/1) ... [2020-07-07 11:31:39,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:31:39,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:31:39,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:31:39,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:31:39,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:39" (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 11:31:40,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:31:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:31:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 11:31:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-07-07 11:31:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:31:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 11:31:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:31:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 11:31:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-07-07 11:31:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 11:31:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 11:31:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:31:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 11:31:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 11:31:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 11:31:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:31:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:31:40,298 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:31:40,299 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-07 11:31:40,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:31:40 BoogieIcfgContainer [2020-07-07 11:31:40,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:31:40,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:31:40,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:31:40,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:31:40,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:31:39" (1/3) ... [2020-07-07 11:31:40,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727d86ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:31:40, skipping insertion in model container [2020-07-07 11:31:40,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:39" (2/3) ... [2020-07-07 11:31:40,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727d86ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:31:40, skipping insertion in model container [2020-07-07 11:31:40,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:31:40" (3/3) ... [2020-07-07 11:31:40,318 INFO L109 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2020-07-07 11:31:40,333 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:31:40,343 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:31:40,370 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:31:40,404 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:31:40,404 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:31:40,405 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:31:40,405 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:31:40,405 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:31:40,405 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:31:40,405 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:31:40,405 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:31:40,421 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-07 11:31:40,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-07 11:31:40,426 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:40,427 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 11:31:40,427 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:40,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:40,434 INFO L82 PathProgramCache]: Analyzing trace with hash -850547107, now seen corresponding path program 1 times [2020-07-07 11:31:40,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:40,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511715863] [2020-07-07 11:31:40,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:40,675 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 11:31:40,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511715863] [2020-07-07 11:31:40,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:31:40,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:31:40,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957021674] [2020-07-07 11:31:40,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:31:40,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:40,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:31:40,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:31:40,700 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2020-07-07 11:31:40,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:40,861 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2020-07-07 11:31:40,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:31:40,863 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-07-07 11:31:40,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:40,874 INFO L225 Difference]: With dead ends: 59 [2020-07-07 11:31:40,875 INFO L226 Difference]: Without dead ends: 31 [2020-07-07 11:31:40,878 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 11:31:40,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-07-07 11:31:40,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2020-07-07 11:31:40,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-07 11:31:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-07-07 11:31:40,918 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 20 [2020-07-07 11:31:40,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:40,918 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-07-07 11:31:40,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:31:40,919 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-07-07 11:31:40,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-07 11:31:40,920 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:40,920 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 11:31:40,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:31:40,920 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:40,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:40,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1453375688, now seen corresponding path program 1 times [2020-07-07 11:31:40,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:40,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633753657] [2020-07-07 11:31:40,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:41,094 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 11:31:41,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633753657] [2020-07-07 11:31:41,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:31:41,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:31:41,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113446082] [2020-07-07 11:31:41,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:31:41,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:41,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:31:41,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:31:41,099 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-07-07 11:31:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:41,311 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-07-07 11:31:41,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:31:41,312 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-07-07 11:31:41,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:41,313 INFO L225 Difference]: With dead ends: 48 [2020-07-07 11:31:41,313 INFO L226 Difference]: Without dead ends: 30 [2020-07-07 11:31:41,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:31:41,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-07 11:31:41,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-07-07 11:31:41,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-07 11:31:41,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-07-07 11:31:41,324 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 20 [2020-07-07 11:31:41,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:41,324 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-07-07 11:31:41,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:31:41,324 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-07-07 11:31:41,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-07 11:31:41,326 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:41,326 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 11:31:41,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:31:41,326 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:41,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:41,327 INFO L82 PathProgramCache]: Analyzing trace with hash -169907062, now seen corresponding path program 1 times [2020-07-07 11:31:41,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:41,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797253460] [2020-07-07 11:31:41,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:41,541 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 11:31:41,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797253460] [2020-07-07 11:31:41,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298833936] [2020-07-07 11:31:41,542 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 11:31:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:41,593 INFO L264 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-07 11:31:41,599 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:41,638 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 11:31:41,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:31:41,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-07 11:31:41,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231237654] [2020-07-07 11:31:41,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:31:41,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:41,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:31:41,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:31:41,640 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2020-07-07 11:31:41,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:41,673 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2020-07-07 11:31:41,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:31:41,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-07 11:31:41,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:41,675 INFO L225 Difference]: With dead ends: 49 [2020-07-07 11:31:41,676 INFO L226 Difference]: Without dead ends: 37 [2020-07-07 11:31:41,676 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 11:31:41,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-07 11:31:41,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2020-07-07 11:31:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-07 11:31:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-07-07 11:31:41,687 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2020-07-07 11:31:41,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:41,688 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-07-07 11:31:41,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:31:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-07-07 11:31:41,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-07 11:31:41,689 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:41,689 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 11:31:41,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-07 11:31:41,903 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:41,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:41,904 INFO L82 PathProgramCache]: Analyzing trace with hash -203072550, now seen corresponding path program 1 times [2020-07-07 11:31:41,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:41,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272851110] [2020-07-07 11:31:41,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:41,987 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 11:31:41,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272851110] [2020-07-07 11:31:41,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185445062] [2020-07-07 11:31:41,988 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 11:31:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:42,036 INFO L264 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-07 11:31:42,039 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:42,052 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 11:31:42,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:31:42,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-07 11:31:42,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194887792] [2020-07-07 11:31:42,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:31:42,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:42,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:31:42,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:31:42,055 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 3 states. [2020-07-07 11:31:42,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:42,069 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-07-07 11:31:42,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:31:42,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-07 11:31:42,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:42,070 INFO L225 Difference]: With dead ends: 48 [2020-07-07 11:31:42,071 INFO L226 Difference]: Without dead ends: 30 [2020-07-07 11:31:42,071 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 11:31:42,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-07 11:31:42,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-07 11:31:42,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-07 11:31:42,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-07-07 11:31:42,078 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 25 [2020-07-07 11:31:42,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:42,079 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-07-07 11:31:42,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:31:42,079 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-07-07 11:31:42,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-07 11:31:42,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:42,080 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 11:31:42,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:42,295 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:42,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:42,295 INFO L82 PathProgramCache]: Analyzing trace with hash -596099560, now seen corresponding path program 1 times [2020-07-07 11:31:42,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:42,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893782317] [2020-07-07 11:31:42,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:42,362 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 11:31:42,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893782317] [2020-07-07 11:31:42,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901531462] [2020-07-07 11:31:42,363 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 11:31:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:42,413 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-07 11:31:42,415 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:42,461 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 11:31:42,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:42,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2020-07-07 11:31:42,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692985196] [2020-07-07 11:31:42,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:31:42,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:42,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:31:42,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:31:42,464 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 9 states. [2020-07-07 11:31:42,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:42,655 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2020-07-07 11:31:42,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:31:42,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-07-07 11:31:42,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:42,657 INFO L225 Difference]: With dead ends: 67 [2020-07-07 11:31:42,657 INFO L226 Difference]: Without dead ends: 48 [2020-07-07 11:31:42,658 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 11:31:42,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-07 11:31:42,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 35. [2020-07-07 11:31:42,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-07 11:31:42,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-07-07 11:31:42,666 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 25 [2020-07-07 11:31:42,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:42,667 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-07-07 11:31:42,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:31:42,667 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-07-07 11:31:42,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-07 11:31:42,668 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:42,668 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 11:31:42,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:42,883 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:42,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:42,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1096950668, now seen corresponding path program 2 times [2020-07-07 11:31:42,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:42,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016829423] [2020-07-07 11:31:42,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:43,073 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 11:31:43,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016829423] [2020-07-07 11:31:43,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507264306] [2020-07-07 11:31:43,074 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 11:31:43,125 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-07 11:31:43,125 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 11:31:43,126 INFO L264 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:31:43,129 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:43,172 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 11:31:43,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:43,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-07-07 11:31:43,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715993679] [2020-07-07 11:31:43,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 11:31:43,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:43,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 11:31:43,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:31:43,175 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 11 states. [2020-07-07 11:31:43,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:43,469 INFO L93 Difference]: Finished difference Result 80 states and 93 transitions. [2020-07-07 11:31:43,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 11:31:43,470 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-07-07 11:31:43,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:43,471 INFO L225 Difference]: With dead ends: 80 [2020-07-07 11:31:43,471 INFO L226 Difference]: Without dead ends: 58 [2020-07-07 11:31:43,472 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 11:31:43,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-07-07 11:31:43,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 40. [2020-07-07 11:31:43,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-07 11:31:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-07-07 11:31:43,486 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 30 [2020-07-07 11:31:43,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:43,488 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-07-07 11:31:43,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 11:31:43,489 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-07-07 11:31:43,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-07 11:31:43,490 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:43,490 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 11:31:43,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:43,691 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:43,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:43,692 INFO L82 PathProgramCache]: Analyzing trace with hash 36245332, now seen corresponding path program 3 times [2020-07-07 11:31:43,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:43,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648499930] [2020-07-07 11:31:43,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:43,894 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 11:31:43,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648499930] [2020-07-07 11:31:43,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865303856] [2020-07-07 11:31:43,895 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 11:31:43,943 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-07-07 11:31:43,943 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 11:31:43,944 INFO L264 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-07 11:31:43,947 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:44,111 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 11:31:44,112 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:31:44,120 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:44,123 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 11:31:44,124 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-07 11:31:44,128 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:44,129 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 11:31:44,129 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2020-07-07 11:31:44,180 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 11:31:44,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:44,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-07-07 11:31:44,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809909430] [2020-07-07 11:31:44,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-07 11:31:44,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:44,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-07 11:31:44,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-07-07 11:31:44,183 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 17 states. [2020-07-07 11:31:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:44,550 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2020-07-07 11:31:44,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-07 11:31:44,551 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2020-07-07 11:31:44,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:44,552 INFO L225 Difference]: With dead ends: 77 [2020-07-07 11:31:44,552 INFO L226 Difference]: Without dead ends: 52 [2020-07-07 11:31:44,553 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 11:31:44,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-07-07 11:31:44,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2020-07-07 11:31:44,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-07-07 11:31:44,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-07-07 11:31:44,565 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 35 [2020-07-07 11:31:44,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:44,567 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-07-07 11:31:44,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-07 11:31:44,567 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-07-07 11:31:44,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-07 11:31:44,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:44,571 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 11:31:44,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-07 11:31:44,772 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:44,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:44,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1657174857, now seen corresponding path program 1 times [2020-07-07 11:31:44,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:44,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29863841] [2020-07-07 11:31:44,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,010 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 11:31:45,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29863841] [2020-07-07 11:31:45,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937503600] [2020-07-07 11:31:45,011 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 11:31:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,057 INFO L264 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-07 11:31:45,059 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:45,078 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 11:31:45,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:31:45,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2020-07-07 11:31:45,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475144068] [2020-07-07 11:31:45,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:31:45,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:45,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:31:45,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:31:45,085 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 3 states. [2020-07-07 11:31:45,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:45,091 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2020-07-07 11:31:45,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:31:45,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-07-07 11:31:45,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:45,093 INFO L225 Difference]: With dead ends: 60 [2020-07-07 11:31:45,093 INFO L226 Difference]: Without dead ends: 49 [2020-07-07 11:31:45,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:31:45,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-07-07 11:31:45,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-07-07 11:31:45,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-07-07 11:31:45,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-07-07 11:31:45,107 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 40 [2020-07-07 11:31:45,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:45,107 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-07-07 11:31:45,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:31:45,107 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-07-07 11:31:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 11:31:45,112 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:45,112 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 11:31:45,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:45,317 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:45,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:45,318 INFO L82 PathProgramCache]: Analyzing trace with hash -283893320, now seen corresponding path program 1 times [2020-07-07 11:31:45,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:45,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058170456] [2020-07-07 11:31:45,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,599 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 11:31:45,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058170456] [2020-07-07 11:31:45,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496045371] [2020-07-07 11:31:45,600 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 11:31:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:45,670 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-07 11:31:45,673 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:45,801 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 11:31:45,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:45,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2020-07-07 11:31:45,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490714267] [2020-07-07 11:31:45,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-07 11:31:45,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:45,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-07 11:31:45,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:31:45,804 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 16 states. [2020-07-07 11:31:46,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:46,191 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2020-07-07 11:31:46,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 11:31:46,192 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 46 [2020-07-07 11:31:46,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:46,193 INFO L225 Difference]: With dead ends: 84 [2020-07-07 11:31:46,194 INFO L226 Difference]: Without dead ends: 52 [2020-07-07 11:31:46,194 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 11:31:46,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-07-07 11:31:46,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2020-07-07 11:31:46,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-07-07 11:31:46,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-07-07 11:31:46,201 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 46 [2020-07-07 11:31:46,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:46,202 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-07-07 11:31:46,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-07 11:31:46,202 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-07-07 11:31:46,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-07 11:31:46,203 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:46,203 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 11:31:46,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:46,413 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:46,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:46,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1920057082, now seen corresponding path program 2 times [2020-07-07 11:31:46,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:46,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091590933] [2020-07-07 11:31:46,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:46,687 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 11:31:46,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091590933] [2020-07-07 11:31:46,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055232768] [2020-07-07 11:31:46,688 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 11:31:46,742 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-07 11:31:46,743 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 11:31:46,744 INFO L264 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-07 11:31:46,747 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:46,908 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 11:31:46,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:46,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2020-07-07 11:31:46,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175055625] [2020-07-07 11:31:46,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-07 11:31:46,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:46,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-07 11:31:46,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2020-07-07 11:31:46,913 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 18 states. [2020-07-07 11:31:47,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:47,349 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2020-07-07 11:31:47,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 11:31:47,349 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 48 [2020-07-07 11:31:47,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:47,351 INFO L225 Difference]: With dead ends: 86 [2020-07-07 11:31:47,351 INFO L226 Difference]: Without dead ends: 54 [2020-07-07 11:31:47,352 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 11:31:47,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-07-07 11:31:47,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2020-07-07 11:31:47,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-07-07 11:31:47,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2020-07-07 11:31:47,365 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 48 [2020-07-07 11:31:47,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:47,366 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2020-07-07 11:31:47,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-07 11:31:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-07-07 11:31:47,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-07 11:31:47,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:47,367 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 11:31:47,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-07 11:31:47,568 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:47,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:47,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1797450820, now seen corresponding path program 3 times [2020-07-07 11:31:47,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:47,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479439331] [2020-07-07 11:31:47,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:47,873 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 11:31:47,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479439331] [2020-07-07 11:31:47,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249947631] [2020-07-07 11:31:47,874 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 11:31:47,924 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-07-07 11:31:47,924 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 11:31:47,925 INFO L264 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2020-07-07 11:31:47,929 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:47,970 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 11:31:47,970 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:31:47,978 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:47,979 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 11:31:47,979 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2020-07-07 11:31:48,169 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:48,170 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 11:31:48,171 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:31:48,174 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-07 11:31:48,184 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:48,186 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-07 11:31:48,188 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 11:31:48,188 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:33, output treesize:27 [2020-07-07 11:31:48,189 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-07 11:31:48,307 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 11:31:48,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:48,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2020-07-07 11:31:48,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390240352] [2020-07-07 11:31:48,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-07 11:31:48,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:48,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-07 11:31:48,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2020-07-07 11:31:48,310 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 20 states. [2020-07-07 11:31:49,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:49,615 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-07-07 11:31:49,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-07 11:31:49,616 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 50 [2020-07-07 11:31:49,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:49,617 INFO L225 Difference]: With dead ends: 69 [2020-07-07 11:31:49,617 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:31:49,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=325, Invalid=1397, Unknown=0, NotChecked=0, Total=1722 [2020-07-07 11:31:49,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:31:49,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:31:49,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:31:49,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:31:49,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2020-07-07 11:31:49,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:49,620 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:31:49,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-07 11:31:49,620 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:31:49,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:31:49,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:31:49,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:31:50,099 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 11:31:50,099 INFO L268 CegarLoopResult]: For program point initEXIT(lines 9 16) no Hoare annotation was computed. [2020-07-07 11:31:50,099 INFO L268 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-07-07 11:31:50,100 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 11:31:50,100 INFO L268 CegarLoopResult]: For program point L12-4(lines 9 16) no Hoare annotation was computed. [2020-07-07 11:31:50,100 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:31:50,100 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 11:31:50,100 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:31:50,101 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:31:50,101 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 11:31:50,101 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:31:50,101 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:31:50,102 INFO L268 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-07-07 11:31:50,102 INFO L268 CegarLoopResult]: For program point L31-2(lines 31 35) no Hoare annotation was computed. [2020-07-07 11:31:50,102 INFO L264 CegarLoopResult]: At program point L31-3(lines 31 35) the Hoare annotation is: (<= 1 main_~flag~0) [2020-07-07 11:31:50,102 INFO L268 CegarLoopResult]: For program point L31-4(lines 31 35) no Hoare annotation was computed. [2020-07-07 11:31:50,102 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 37) no Hoare annotation was computed. [2020-07-07 11:31:50,102 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 11:31:50,103 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-07-07 11:31:50,103 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 37) no Hoare annotation was computed. [2020-07-07 11:31:50,103 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: false [2020-07-07 11:31:50,103 INFO L268 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-07-07 11:31:50,103 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 11:31:50,103 INFO L268 CegarLoopResult]: For program point L26(lines 26 29) no Hoare annotation was computed. [2020-07-07 11:31:50,103 INFO L268 CegarLoopResult]: For program point L24-2(lines 24 30) no Hoare annotation was computed. [2020-07-07 11:31:50,104 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|)))) (<= 99999 v_init_~i~0_17) (< v_init_~i~0_17 100000)))) (.cse1 (= 0 main_~flag~0)) (.cse2 (= 0 |main_~#a~0.offset|))) (or (and .cse0 (= 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|)) (<= main_~i~1 99999) .cse1 .cse2) (and .cse0 (= 0 main_~i~1) .cse1 .cse2) (<= 1 main_~flag~0))) [2020-07-07 11:31:50,104 INFO L268 CegarLoopResult]: For program point L24-4(lines 24 30) no Hoare annotation was computed. [2020-07-07 11:31:50,104 INFO L268 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-07-07 11:31:50,105 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2020-07-07 11:31:50,105 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2020-07-07 11:31:50,105 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-07 11:31:50,105 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-07-07 11:31:50,105 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-07-07 11:31:50,135 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,136 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,137 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,138 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,139 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,147 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,147 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,147 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,148 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,148 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,149 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,149 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,149 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,155 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,159 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:50,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:50,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:50,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:50,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:31:50 BoogieIcfgContainer [2020-07-07 11:31:50,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:31:50,184 INFO L168 Benchmark]: Toolchain (without parser) took 10754.99 ms. Allocated memory was 142.6 MB in the beginning and 313.0 MB in the end (delta: 170.4 MB). Free memory was 99.7 MB in the beginning and 85.6 MB in the end (delta: 14.1 MB). Peak memory consumption was 184.5 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:50,187 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 11:31:50,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.92 ms. Allocated memory is still 142.6 MB. Free memory was 99.5 MB in the beginning and 89.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:50,190 INFO L168 Benchmark]: Boogie Preprocessor took 185.41 ms. Allocated memory was 142.6 MB in the beginning and 201.3 MB in the end (delta: 58.7 MB). Free memory was 89.2 MB in the beginning and 178.6 MB in the end (delta: -89.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:50,190 INFO L168 Benchmark]: RCFGBuilder took 360.01 ms. Allocated memory is still 201.3 MB. Free memory was 178.6 MB in the beginning and 161.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:50,191 INFO L168 Benchmark]: TraceAbstraction took 9875.08 ms. Allocated memory was 201.3 MB in the beginning and 313.0 MB in the end (delta: 111.7 MB). Free memory was 161.1 MB in the beginning and 85.6 MB in the end (delta: 75.5 MB). Peak memory consumption was 187.2 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:50,197 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 328.92 ms. Allocated memory is still 142.6 MB. Free memory was 99.5 MB in the beginning and 89.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 185.41 ms. Allocated memory was 142.6 MB in the beginning and 201.3 MB in the end (delta: 58.7 MB). Free memory was 89.2 MB in the beginning and 178.6 MB in the end (delta: -89.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 360.01 ms. Allocated memory is still 201.3 MB. Free memory was 178.6 MB in the beginning and 161.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9875.08 ms. Allocated memory was 201.3 MB in the beginning and 313.0 MB in the end (delta: 111.7 MB). Free memory was 161.1 MB in the beginning and 85.6 MB in the end (delta: 75.5 MB). Peak memory consumption was 187.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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: 4]: 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 11:31:50,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,212 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,212 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,213 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,215 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,215 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,221 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,221 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,222 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,222 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,222 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,222 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,223 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,223 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,224 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,224 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,224 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,225 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,225 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,225 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,225 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,225 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]) && 99999 <= v_init_~i~0_17) && v_init_~i~0_17 < 100000) && 0 == #memory_$Pointer$[a][a]) && 0 == #memory_$Pointer$[a][a]) && i <= 99999) && 0 == flag) && 0 == a) || ((((\exists v_init_~i~0_17 : int :: (!(0 == #memory_$Pointer$[a][v_init_~i~0_17 * 4 + a]) && 99999 <= v_init_~i~0_17) && v_init_~i~0_17 < 100000) && 0 == i) && 0 == flag) && 0 == a)) || 1 <= flag - InvariantResult [Line: 12]: Loop Invariant [2020-07-07 11:31:50,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,227 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:50,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:50,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,228 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,228 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,228 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,229 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_17,QUANTIFIED] [2020-07-07 11:31:50,229 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,229 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:31:50,229 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,230 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:31:50,230 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,230 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,230 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,230 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:50,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-07 11:31:50,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:31:50,231 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: 9.4s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 3.4s, 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, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 484 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 4.0s 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, 0.3s SatisfiabilityAnalysisTime, 3.0s 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...