/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/locks/test_locks_5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:00:34,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:00:34,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:00:34,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:00:34,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:00:34,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:00:34,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:00:34,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:00:34,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:00:34,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:00:34,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:00:34,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:00:34,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:00:34,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:00:34,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:00:34,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:00:34,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:00:34,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:00:34,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:00:34,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:00:34,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:00:34,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:00:34,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:00:34,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:00:34,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:00:34,172 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:00:34,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:00:34,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:00:34,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:00:34,192 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:00:34,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:00:34,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:00:34,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:00:34,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:00:34,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:00:34,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:00:34,194 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:00:34,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:00:34,195 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:00:34,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:00:34,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:00:34,196 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:00:34,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:00:34,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:00:34,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:00:34,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:00:34,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:00:34,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:00:34,197 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:00:34,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:00:34,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:00:34,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:00:34,582 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:00:34,582 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:00:34,583 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_5.c [2020-08-22 19:00:34,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/037dcb824/3d9efb86117248289fd9a319e818b674/FLAG37f518693 [2020-08-22 19:00:35,176 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:00:35,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_5.c [2020-08-22 19:00:35,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/037dcb824/3d9efb86117248289fd9a319e818b674/FLAG37f518693 [2020-08-22 19:00:35,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/037dcb824/3d9efb86117248289fd9a319e818b674 [2020-08-22 19:00:35,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:00:35,504 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:00:35,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:00:35,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:00:35,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:00:35,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:00:35" (1/1) ... [2020-08-22 19:00:35,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db13e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:00:35, skipping insertion in model container [2020-08-22 19:00:35,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:00:35" (1/1) ... [2020-08-22 19:00:35,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:00:35,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:00:35,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:00:35,844 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:00:35,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:00:35,881 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:00:35,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:00:35 WrapperNode [2020-08-22 19:00:35,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:00:35,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:00:35,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:00:35,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:00:35,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:00:35" (1/1) ... [2020-08-22 19:00:35,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:00:35" (1/1) ... [2020-08-22 19:00:35,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:00:35" (1/1) ... [2020-08-22 19:00:35,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:00:35" (1/1) ... [2020-08-22 19:00:35,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:00:35" (1/1) ... [2020-08-22 19:00:35,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:00:35" (1/1) ... [2020-08-22 19:00:35,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:00:35" (1/1) ... [2020-08-22 19:00:36,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:00:36,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:00:36,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:00:36,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:00:36,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:00:35" (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 [2020-08-22 19:00:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:00:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:00:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:00:36,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:00:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:00:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:00:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:00:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:00:36,388 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:00:36,388 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 19:00:36,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:00:36 BoogieIcfgContainer [2020-08-22 19:00:36,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:00:36,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:00:36,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:00:36,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:00:36,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:00:35" (1/3) ... [2020-08-22 19:00:36,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48687b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:00:36, skipping insertion in model container [2020-08-22 19:00:36,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:00:35" (2/3) ... [2020-08-22 19:00:36,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48687b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:00:36, skipping insertion in model container [2020-08-22 19:00:36,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:00:36" (3/3) ... [2020-08-22 19:00:36,405 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_5.c [2020-08-22 19:00:36,419 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:00:36,430 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:00:36,454 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:00:36,489 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:00:36,489 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:00:36,489 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:00:36,490 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:00:36,490 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:00:36,490 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:00:36,491 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:00:36,491 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:00:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-08-22 19:00:36,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-08-22 19:00:36,545 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:00:36,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:00:36,556 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:00:36,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:00:36,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1222569836, now seen corresponding path program 1 times [2020-08-22 19:00:36,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:00:36,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284417311] [2020-08-22 19:00:36,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:00:36,655 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:00:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:36,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:00:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:00:36,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284417311] [2020-08-22 19:00:36,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:00:36,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:00:36,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541955545] [2020-08-22 19:00:36,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:00:36,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:00:36,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:00:36,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:36,829 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2020-08-22 19:00:36,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:00:36,938 INFO L93 Difference]: Finished difference Result 147 states and 198 transitions. [2020-08-22 19:00:36,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:00:36,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-08-22 19:00:36,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:00:36,953 INFO L225 Difference]: With dead ends: 147 [2020-08-22 19:00:36,953 INFO L226 Difference]: Without dead ends: 96 [2020-08-22 19:00:36,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:36,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-08-22 19:00:37,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2020-08-22 19:00:37,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-08-22 19:00:37,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 120 transitions. [2020-08-22 19:00:37,020 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 120 transitions. Word has length 43 [2020-08-22 19:00:37,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:00:37,021 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 120 transitions. [2020-08-22 19:00:37,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:00:37,022 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 120 transitions. [2020-08-22 19:00:37,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-08-22 19:00:37,024 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:00:37,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:00:37,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:00:37,025 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:00:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:00:37,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1252462105, now seen corresponding path program 1 times [2020-08-22 19:00:37,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:00:37,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [740634327] [2020-08-22 19:00:37,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:00:37,029 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:00:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:00:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:00:37,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [740634327] [2020-08-22 19:00:37,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:00:37,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:00:37,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107038283] [2020-08-22 19:00:37,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:00:37,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:00:37,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:00:37,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:37,122 INFO L87 Difference]: Start difference. First operand 94 states and 120 transitions. Second operand 3 states. [2020-08-22 19:00:37,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:00:37,176 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions. [2020-08-22 19:00:37,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:00:37,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-08-22 19:00:37,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:00:37,179 INFO L225 Difference]: With dead ends: 116 [2020-08-22 19:00:37,180 INFO L226 Difference]: Without dead ends: 114 [2020-08-22 19:00:37,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:37,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-08-22 19:00:37,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2020-08-22 19:00:37,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-08-22 19:00:37,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions. [2020-08-22 19:00:37,227 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 119 transitions. Word has length 44 [2020-08-22 19:00:37,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:00:37,228 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 119 transitions. [2020-08-22 19:00:37,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:00:37,228 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions. [2020-08-22 19:00:37,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-08-22 19:00:37,234 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:00:37,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:00:37,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:00:37,235 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:00:37,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:00:37,235 INFO L82 PathProgramCache]: Analyzing trace with hash 755286414, now seen corresponding path program 1 times [2020-08-22 19:00:37,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:00:37,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447268166] [2020-08-22 19:00:37,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:00:37,242 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:00:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:00:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:00:37,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447268166] [2020-08-22 19:00:37,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:00:37,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:00:37,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494585049] [2020-08-22 19:00:37,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:00:37,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:00:37,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:00:37,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:37,307 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. Second operand 3 states. [2020-08-22 19:00:37,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:00:37,358 INFO L93 Difference]: Finished difference Result 226 states and 299 transitions. [2020-08-22 19:00:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:00:37,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-08-22 19:00:37,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:00:37,362 INFO L225 Difference]: With dead ends: 226 [2020-08-22 19:00:37,362 INFO L226 Difference]: Without dead ends: 157 [2020-08-22 19:00:37,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:37,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-08-22 19:00:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2020-08-22 19:00:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-08-22 19:00:37,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 200 transitions. [2020-08-22 19:00:37,419 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 200 transitions. Word has length 44 [2020-08-22 19:00:37,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:00:37,419 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 200 transitions. [2020-08-22 19:00:37,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:00:37,419 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 200 transitions. [2020-08-22 19:00:37,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-08-22 19:00:37,427 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:00:37,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:00:37,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:00:37,430 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:00:37,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:00:37,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1863120818, now seen corresponding path program 1 times [2020-08-22 19:00:37,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:00:37,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551362808] [2020-08-22 19:00:37,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:00:37,435 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:00:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:00:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:00:37,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551362808] [2020-08-22 19:00:37,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:00:37,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:00:37,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302528411] [2020-08-22 19:00:37,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:00:37,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:00:37,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:00:37,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:37,527 INFO L87 Difference]: Start difference. First operand 155 states and 200 transitions. Second operand 3 states. [2020-08-22 19:00:37,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:00:37,569 INFO L93 Difference]: Finished difference Result 191 states and 246 transitions. [2020-08-22 19:00:37,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:00:37,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-08-22 19:00:37,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:00:37,572 INFO L225 Difference]: With dead ends: 191 [2020-08-22 19:00:37,572 INFO L226 Difference]: Without dead ends: 189 [2020-08-22 19:00:37,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:37,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-08-22 19:00:37,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 155. [2020-08-22 19:00:37,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-08-22 19:00:37,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 198 transitions. [2020-08-22 19:00:37,598 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 198 transitions. Word has length 45 [2020-08-22 19:00:37,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:00:37,599 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 198 transitions. [2020-08-22 19:00:37,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:00:37,599 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 198 transitions. [2020-08-22 19:00:37,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-08-22 19:00:37,601 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:00:37,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:00:37,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:00:37,602 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:00:37,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:00:37,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1939288392, now seen corresponding path program 1 times [2020-08-22 19:00:37,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:00:37,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269304268] [2020-08-22 19:00:37,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:00:37,606 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:00:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:00:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:00:37,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269304268] [2020-08-22 19:00:37,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:00:37,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:00:37,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689807482] [2020-08-22 19:00:37,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:00:37,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:00:37,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:00:37,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:37,662 INFO L87 Difference]: Start difference. First operand 155 states and 198 transitions. Second operand 3 states. [2020-08-22 19:00:37,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:00:37,706 INFO L93 Difference]: Finished difference Result 403 states and 528 transitions. [2020-08-22 19:00:37,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:00:37,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-08-22 19:00:37,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:00:37,709 INFO L225 Difference]: With dead ends: 403 [2020-08-22 19:00:37,709 INFO L226 Difference]: Without dead ends: 273 [2020-08-22 19:00:37,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:37,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-08-22 19:00:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271. [2020-08-22 19:00:37,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-08-22 19:00:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 346 transitions. [2020-08-22 19:00:37,746 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 346 transitions. Word has length 45 [2020-08-22 19:00:37,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:00:37,746 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 346 transitions. [2020-08-22 19:00:37,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:00:37,747 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 346 transitions. [2020-08-22 19:00:37,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 19:00:37,749 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:00:37,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:00:37,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 19:00:37,749 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:00:37,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:00:37,750 INFO L82 PathProgramCache]: Analyzing trace with hash -11355582, now seen corresponding path program 1 times [2020-08-22 19:00:37,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:00:37,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787094653] [2020-08-22 19:00:37,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:00:37,753 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:00:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:00:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:00:37,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787094653] [2020-08-22 19:00:37,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:00:37,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:00:37,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597281729] [2020-08-22 19:00:37,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:00:37,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:00:37,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:00:37,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:37,807 INFO L87 Difference]: Start difference. First operand 271 states and 346 transitions. Second operand 3 states. [2020-08-22 19:00:37,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:00:37,870 INFO L93 Difference]: Finished difference Result 739 states and 956 transitions. [2020-08-22 19:00:37,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:00:37,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-22 19:00:37,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:00:37,875 INFO L225 Difference]: With dead ends: 739 [2020-08-22 19:00:37,875 INFO L226 Difference]: Without dead ends: 493 [2020-08-22 19:00:37,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:37,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-08-22 19:00:37,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 491. [2020-08-22 19:00:37,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-08-22 19:00:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 618 transitions. [2020-08-22 19:00:37,931 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 618 transitions. Word has length 46 [2020-08-22 19:00:37,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:00:37,931 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 618 transitions. [2020-08-22 19:00:37,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:00:37,932 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 618 transitions. [2020-08-22 19:00:37,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 19:00:37,934 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:00:37,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:00:37,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 19:00:37,935 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:00:37,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:00:37,936 INFO L82 PathProgramCache]: Analyzing trace with hash 338056749, now seen corresponding path program 1 times [2020-08-22 19:00:37,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:00:37,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276141533] [2020-08-22 19:00:37,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:00:37,938 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:00:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:00:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:37,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:00:37,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276141533] [2020-08-22 19:00:37,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:00:37,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:00:37,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501491194] [2020-08-22 19:00:37,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:00:37,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:00:37,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:00:37,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:37,970 INFO L87 Difference]: Start difference. First operand 491 states and 618 transitions. Second operand 3 states. [2020-08-22 19:00:38,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:00:38,031 INFO L93 Difference]: Finished difference Result 599 states and 748 transitions. [2020-08-22 19:00:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:00:38,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-22 19:00:38,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:00:38,036 INFO L225 Difference]: With dead ends: 599 [2020-08-22 19:00:38,036 INFO L226 Difference]: Without dead ends: 597 [2020-08-22 19:00:38,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:38,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-08-22 19:00:38,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 491. [2020-08-22 19:00:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-08-22 19:00:38,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 610 transitions. [2020-08-22 19:00:38,083 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 610 transitions. Word has length 46 [2020-08-22 19:00:38,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:00:38,084 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 610 transitions. [2020-08-22 19:00:38,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:00:38,084 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 610 transitions. [2020-08-22 19:00:38,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-22 19:00:38,086 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:00:38,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:00:38,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 19:00:38,087 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:00:38,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:00:38,087 INFO L82 PathProgramCache]: Analyzing trace with hash -144915038, now seen corresponding path program 1 times [2020-08-22 19:00:38,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:00:38,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263160356] [2020-08-22 19:00:38,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:00:38,090 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:00:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:38,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:00:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:38,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:00:38,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263160356] [2020-08-22 19:00:38,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:00:38,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:00:38,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039295236] [2020-08-22 19:00:38,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:00:38,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:00:38,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:00:38,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:38,122 INFO L87 Difference]: Start difference. First operand 491 states and 610 transitions. Second operand 3 states. [2020-08-22 19:00:38,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:00:38,187 INFO L93 Difference]: Finished difference Result 591 states and 724 transitions. [2020-08-22 19:00:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:00:38,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-08-22 19:00:38,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:00:38,192 INFO L225 Difference]: With dead ends: 591 [2020-08-22 19:00:38,192 INFO L226 Difference]: Without dead ends: 589 [2020-08-22 19:00:38,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:38,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-08-22 19:00:38,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 491. [2020-08-22 19:00:38,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-08-22 19:00:38,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 602 transitions. [2020-08-22 19:00:38,248 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 602 transitions. Word has length 47 [2020-08-22 19:00:38,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:00:38,248 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 602 transitions. [2020-08-22 19:00:38,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:00:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 602 transitions. [2020-08-22 19:00:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-22 19:00:38,250 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:00:38,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:00:38,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 19:00:38,251 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:00:38,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:00:38,252 INFO L82 PathProgramCache]: Analyzing trace with hash -351776260, now seen corresponding path program 1 times [2020-08-22 19:00:38,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:00:38,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465318266] [2020-08-22 19:00:38,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:00:38,254 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:00:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:38,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:00:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:00:38,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465318266] [2020-08-22 19:00:38,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:00:38,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:00:38,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377523105] [2020-08-22 19:00:38,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:00:38,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:00:38,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:00:38,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:38,302 INFO L87 Difference]: Start difference. First operand 491 states and 602 transitions. Second operand 3 states. [2020-08-22 19:00:38,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:00:38,424 INFO L93 Difference]: Finished difference Result 1373 states and 1691 transitions. [2020-08-22 19:00:38,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:00:38,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-08-22 19:00:38,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:00:38,428 INFO L225 Difference]: With dead ends: 1373 [2020-08-22 19:00:38,429 INFO L226 Difference]: Without dead ends: 491 [2020-08-22 19:00:38,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:38,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-08-22 19:00:38,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-08-22 19:00:38,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-08-22 19:00:38,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 570 transitions. [2020-08-22 19:00:38,473 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 570 transitions. Word has length 47 [2020-08-22 19:00:38,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:00:38,473 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 570 transitions. [2020-08-22 19:00:38,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:00:38,473 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 570 transitions. [2020-08-22 19:00:38,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-08-22 19:00:38,475 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:00:38,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:00:38,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 19:00:38,475 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:00:38,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:00:38,476 INFO L82 PathProgramCache]: Analyzing trace with hash 2062829121, now seen corresponding path program 1 times [2020-08-22 19:00:38,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:00:38,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807264366] [2020-08-22 19:00:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:00:38,478 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:00:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:38,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:00:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:00:38,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:00:38,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807264366] [2020-08-22 19:00:38,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:00:38,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 19:00:38,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334256874] [2020-08-22 19:00:38,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 19:00:38,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:00:38,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 19:00:38,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:38,513 INFO L87 Difference]: Start difference. First operand 491 states and 570 transitions. Second operand 3 states. [2020-08-22 19:00:38,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:00:38,559 INFO L93 Difference]: Finished difference Result 491 states and 570 transitions. [2020-08-22 19:00:38,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 19:00:38,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-08-22 19:00:38,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:00:38,561 INFO L225 Difference]: With dead ends: 491 [2020-08-22 19:00:38,561 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 19:00:38,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 19:00:38,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 19:00:38,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 19:00:38,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 19:00:38,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 19:00:38,564 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-08-22 19:00:38,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:00:38,564 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 19:00:38,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 19:00:38,564 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 19:00:38,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 19:00:38,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 19:00:38,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 19:00:39,296 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-08-22 19:00:39,480 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-08-22 19:00:39,901 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-08-22 19:00:40,207 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-08-22 19:00:40,398 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-08-22 19:00:40,821 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-08-22 19:00:40,941 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:00:40,941 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:00:40,941 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:00:40,941 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:00:40,941 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 19:00:40,942 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:00:40,942 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 4 93) the Hoare annotation is: true [2020-08-22 19:00:40,942 INFO L264 CegarLoopResult]: At program point L85(line 85) the Hoare annotation is: (= main_~lk5~0 1) [2020-08-22 19:00:40,942 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-08-22 19:00:40,945 INFO L264 CegarLoopResult]: At program point L69(line 69) the Hoare annotation is: (let ((.cse6 (= main_~p5~0 0)) (.cse5 (= main_~lk3~0 1)) (.cse2 (= main_~p4~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse0 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse3 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse6 .cse1 .cse2) (and .cse4 .cse5 .cse6 .cse1) (and .cse4 .cse0 .cse6 .cse1) (and .cse5 .cse6 .cse1 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse3))) [2020-08-22 19:00:40,945 INFO L264 CegarLoopResult]: At program point L53-1(lines 24 88) the Hoare annotation is: (let ((.cse6 (= main_~p2~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse5 (= main_~p3~0 0)) (.cse3 (= main_~p1~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse7 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse4 .cse0 .cse3 .cse6) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse2 .cse3 .cse6) (and .cse4 .cse5 .cse3 .cse6) (and .cse5 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse7) (and .cse0 .cse2 .cse6 .cse7) (and .cse5 .cse2 .cse6 .cse7) (and .cse4 .cse0 .cse6 .cse7) (and .cse4 .cse0 .cse1 .cse3) (and .cse4 .cse0 .cse1 .cse7) (and .cse4 .cse5 .cse1 .cse7) (and .cse5 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse7))) [2020-08-22 19:00:40,945 INFO L264 CegarLoopResult]: At program point L78-1(lines 24 88) the Hoare annotation is: (or (= main_~p5~0 0) (= main_~lk5~0 1)) [2020-08-22 19:00:40,946 INFO L271 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-08-22 19:00:40,946 INFO L264 CegarLoopResult]: At program point L45-1(lines 24 88) the Hoare annotation is: (let ((.cse0 (= main_~lk2~0 1)) (.cse2 (= main_~p1~0 0)) (.cse3 (= main_~p2~0 0)) (.cse1 (= main_~lk1~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse0 .cse2) (and .cse3 .cse1))) [2020-08-22 19:00:40,946 INFO L271 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-08-22 19:00:40,946 INFO L271 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-08-22 19:00:40,947 INFO L264 CegarLoopResult]: At program point L70(line 70) the Hoare annotation is: (let ((.cse6 (= main_~p5~0 0)) (.cse5 (= main_~lk3~0 1)) (.cse2 (= main_~p4~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse0 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse3 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse6 .cse1 .cse2) (and .cse4 .cse5 .cse6 .cse1) (and .cse4 .cse0 .cse6 .cse1) (and .cse5 .cse6 .cse1 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse3))) [2020-08-22 19:00:40,950 INFO L271 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: true [2020-08-22 19:00:40,950 INFO L271 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-08-22 19:00:40,951 INFO L264 CegarLoopResult]: At program point L54(line 54) the Hoare annotation is: (let ((.cse2 (= main_~lk1~0 1)) (.cse4 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse0 (= main_~lk3~0 1)) (.cse5 (= main_~p1~0 0)) (.cse3 (= main_~p2~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse1 .cse2) (and .cse0 .cse1 .cse5) (and .cse4 .cse5 .cse3) (and .cse4 .cse3 .cse2) (and .cse4 .cse1 .cse5) (and .cse0 .cse5 .cse3))) [2020-08-22 19:00:40,951 INFO L264 CegarLoopResult]: At program point L79(line 79) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1))) (or (and .cse0 (= main_~lk5~0 1)) (and .cse0 (= main_~p5~0 0)))) [2020-08-22 19:00:40,951 INFO L264 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (or (= main_~p1~0 0) (= main_~lk1~0 1)) [2020-08-22 19:00:40,951 INFO L271 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-08-22 19:00:40,951 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 4 93) the Hoare annotation is: true [2020-08-22 19:00:40,952 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) the Hoare annotation is: false [2020-08-22 19:00:40,952 INFO L264 CegarLoopResult]: At program point L63-1(lines 24 88) the Hoare annotation is: (let ((.cse6 (= main_~lk3~0 1)) (.cse0 (= main_~lk4~0 1)) (.cse4 (= main_~lk2~0 1)) (.cse2 (= main_~lk5~0 1)) (.cse1 (= main_~p3~0 0)) (.cse7 (= main_~p5~0 0)) (.cse5 (= main_~p4~0 0)) (.cse3 (= main_~p2~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse4 .cse5 .cse2) (and .cse0 .cse6 .cse7 .cse4) (and .cse6 .cse4 .cse5 .cse2) (and .cse0 .cse6 .cse2 .cse3) (and .cse0 .cse1 .cse7 .cse3) (and .cse6 .cse7 .cse5 .cse3) (and .cse1 .cse7 .cse4 .cse5) (and .cse0 .cse6 .cse4 .cse2) (and .cse6 .cse5 .cse2 .cse3) (and .cse0 .cse6 .cse7 .cse3) (and .cse1 .cse5 .cse2 .cse3) (and .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse1 .cse7 .cse4) (and .cse0 .cse1 .cse4 .cse2) (and .cse1 .cse7 .cse5 .cse3))) [2020-08-22 19:00:40,953 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 93) the Hoare annotation is: true [2020-08-22 19:00:40,953 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-08-22 19:00:40,953 INFO L264 CegarLoopResult]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1))) (or (and .cse0 (= main_~lk5~0 1)) (and .cse0 (= main_~p5~0 0)))) [2020-08-22 19:00:40,953 INFO L271 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: true [2020-08-22 19:00:40,953 INFO L271 CegarLoopResult]: At program point L6-1(line 6) the Hoare annotation is: true [2020-08-22 19:00:40,954 INFO L264 CegarLoopResult]: At program point L64(line 64) the Hoare annotation is: (let ((.cse7 (= main_~p5~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse8 (= main_~lk4~0 1)) (.cse6 (= main_~p2~0 0)) (.cse5 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse3 .cse6 .cse4) (and .cse0 .cse7 .cse2 .cse6 .cse4) (and .cse5 .cse7 .cse1 .cse2 .cse4) (and .cse8 .cse0 .cse7 .cse6 .cse4) (and .cse5 .cse7 .cse2 .cse6 .cse4) (and .cse8 .cse5 .cse7 .cse1 .cse4) (and .cse8 .cse0 .cse1 .cse3 .cse4) (and .cse8 .cse0 .cse7 .cse1 .cse4) (and .cse8 .cse5 .cse7 .cse6 .cse4) (and .cse8 .cse5 .cse1 .cse3 .cse4) (and .cse0 .cse7 .cse1 .cse2 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse8 .cse0 .cse3 .cse6 .cse4) (and .cse8 .cse5 .cse3 .cse6 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4))) [2020-08-22 19:00:40,954 INFO L271 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: true [2020-08-22 19:00:40,954 INFO L271 CegarLoopResult]: At program point L89(lines 5 93) the Hoare annotation is: true [2020-08-22 19:00:40,954 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-08-22 19:00:40,954 INFO L271 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: true [2020-08-22 19:00:40,955 INFO L271 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: true [2020-08-22 19:00:40,955 INFO L264 CegarLoopResult]: At program point L73-1(lines 24 88) the Hoare annotation is: (let ((.cse1 (= main_~lk5~0 1)) (.cse2 (= main_~lk4~0 1)) (.cse3 (= main_~p5~0 0)) (.cse0 (= main_~p4~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse2 .cse3) (and .cse3 .cse0))) [2020-08-22 19:00:40,955 INFO L271 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-08-22 19:00:40,956 INFO L264 CegarLoopResult]: At program point L65(line 65) the Hoare annotation is: (let ((.cse7 (= main_~p5~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse8 (= main_~lk4~0 1)) (.cse6 (= main_~p2~0 0)) (.cse5 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse3 .cse6 .cse4) (and .cse0 .cse7 .cse2 .cse6 .cse4) (and .cse5 .cse7 .cse1 .cse2 .cse4) (and .cse5 .cse7 .cse2 .cse6 .cse4) (and .cse8 .cse0 .cse7 .cse6 .cse4) (and .cse8 .cse5 .cse7 .cse1 .cse4) (and .cse8 .cse0 .cse1 .cse3 .cse4) (and .cse8 .cse0 .cse7 .cse1 .cse4) (and .cse8 .cse5 .cse7 .cse6 .cse4) (and .cse0 .cse7 .cse1 .cse2 .cse4) (and .cse8 .cse5 .cse1 .cse3 .cse4) (and .cse8 .cse0 .cse3 .cse6 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse8 .cse5 .cse3 .cse6 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4))) [2020-08-22 19:00:40,956 INFO L264 CegarLoopResult]: At program point L57-1(lines 24 88) the Hoare annotation is: (let ((.cse0 (= main_~lk3~0 1)) (.cse6 (= main_~p2~0 0)) (.cse2 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~lk1~0 1)) (.cse8 (= main_~lk4~0 1)) (.cse7 (= main_~p3~0 0)) (.cse5 (= main_~p5~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse9 (= main_~p1~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse4) (and .cse7 .cse5 .cse2 .cse6 .cse4) (and .cse7 .cse5 .cse1 .cse2 .cse4) (and .cse8 .cse0 .cse5 .cse6 .cse4) (and .cse8 .cse7 .cse5 .cse1 .cse4) (and .cse8 .cse0 .cse1 .cse3 .cse4) (and .cse8 .cse0 .cse5 .cse1 .cse4) (and .cse8 .cse7 .cse5 .cse6 .cse4) (and .cse0 .cse1 .cse2 .cse9 .cse3) (and .cse0 .cse5 .cse1 .cse2 .cse4) (and .cse8 .cse0 .cse9 .cse3 .cse6) (and .cse8 .cse7 .cse1 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse9 .cse6) (and .cse7 .cse2 .cse9 .cse3 .cse6) (and .cse8 .cse7 .cse3 .cse6 .cse4) (and .cse8 .cse0 .cse5 .cse1 .cse9) (and .cse7 .cse5 .cse1 .cse2 .cse9) (and .cse7 .cse2 .cse3 .cse6 .cse4) (and .cse7 .cse1 .cse2 .cse9 .cse3) (and .cse0 .cse2 .cse9 .cse3 .cse6) (and .cse8 .cse7 .cse1 .cse9 .cse3) (and .cse8 .cse0 .cse5 .cse9 .cse6) (and .cse8 .cse0 .cse1 .cse9 .cse3) (and .cse8 .cse7 .cse5 .cse9 .cse6) (and .cse0 .cse5 .cse1 .cse2 .cse9) (and .cse8 .cse0 .cse3 .cse6 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse7 .cse5 .cse2 .cse9 .cse6) (and .cse8 .cse7 .cse9 .cse3 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4) (and .cse8 .cse7 .cse5 .cse1 .cse9))) [2020-08-22 19:00:40,956 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-08-22 19:00:40,957 INFO L264 CegarLoopResult]: At program point L49-1(lines 24 88) the Hoare annotation is: (let ((.cse2 (= main_~lk1~0 1)) (.cse0 (= main_~lk3~0 1)) (.cse3 (= main_~p2~0 0)) (.cse4 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse5 (= main_~p1~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse1 .cse2) (and .cse4 .cse5 .cse3) (and .cse0 .cse1 .cse5) (and .cse4 .cse3 .cse2) (and .cse0 .cse5 .cse3) (and .cse4 .cse1 .cse5))) [2020-08-22 19:00:40,957 INFO L264 CegarLoopResult]: At program point L74(line 74) the Hoare annotation is: (let ((.cse2 (= main_~lk5~0 1)) (.cse3 (= main_~p4~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~lk3~0 1)) (.cse4 (= main_~p5~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3 .cse2) (and .cse1 .cse4 .cse3) (and .cse0 .cse1 .cse4))) [2020-08-22 19:00:40,957 INFO L271 CegarLoopResult]: At program point L41(lines 41 43) the Hoare annotation is: true [2020-08-22 19:00:40,959 INFO L264 CegarLoopResult]: At program point L41-2(lines 24 88) the Hoare annotation is: (or (= main_~p1~0 0) (= main_~lk1~0 1)) [2020-08-22 19:00:40,960 INFO L271 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: true [2020-08-22 19:00:40,960 INFO L264 CegarLoopResult]: At program point L58(line 58) the Hoare annotation is: (let ((.cse6 (= main_~p2~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse5 (= main_~p3~0 0)) (.cse3 (= main_~p1~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse7 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse4 .cse0 .cse3 .cse6) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse2 .cse3 .cse6) (and .cse4 .cse5 .cse3 .cse6) (and .cse5 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse7) (and .cse0 .cse2 .cse6 .cse7) (and .cse5 .cse2 .cse6 .cse7) (and .cse4 .cse0 .cse6 .cse7) (and .cse4 .cse0 .cse1 .cse3) (and .cse4 .cse0 .cse1 .cse7) (and .cse4 .cse5 .cse1 .cse7) (and .cse5 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse7))) [2020-08-22 19:00:40,960 INFO L271 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-08-22 19:00:40,960 INFO L271 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: true [2020-08-22 19:00:40,960 INFO L271 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: true [2020-08-22 19:00:40,961 INFO L264 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (= main_~lk2~0 1)) (.cse2 (= main_~p1~0 0)) (.cse3 (= main_~p2~0 0)) (.cse1 (= main_~lk1~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse0 .cse2) (and .cse3 .cse1))) [2020-08-22 19:00:40,961 INFO L271 CegarLoopResult]: At program point L83-1(lines 24 88) the Hoare annotation is: true [2020-08-22 19:00:40,961 INFO L264 CegarLoopResult]: At program point L75(line 75) the Hoare annotation is: (let ((.cse2 (= main_~lk5~0 1)) (.cse3 (= main_~p4~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~lk3~0 1)) (.cse4 (= main_~p5~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3 .cse2) (and .cse1 .cse4 .cse3) (and .cse0 .cse1 .cse4))) [2020-08-22 19:00:40,961 INFO L271 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: true [2020-08-22 19:00:40,961 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-08-22 19:00:40,962 INFO L271 CegarLoopResult]: At program point L9-1(line 9) the Hoare annotation is: true [2020-08-22 19:00:40,962 INFO L271 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: true [2020-08-22 19:00:40,962 INFO L264 CegarLoopResult]: At program point L92(line 92) the Hoare annotation is: false [2020-08-22 19:00:40,962 INFO L271 CegarLoopResult]: At program point L26(lines 26 28) the Hoare annotation is: true [2020-08-22 19:00:40,962 INFO L264 CegarLoopResult]: At program point L84(line 84) the Hoare annotation is: (= main_~lk5~0 1) [2020-08-22 19:00:40,963 INFO L264 CegarLoopResult]: At program point L84-1(lines 5 93) the Hoare annotation is: false [2020-08-22 19:00:40,963 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-08-22 19:00:40,963 INFO L271 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: true [2020-08-22 19:00:40,963 INFO L271 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: true [2020-08-22 19:00:40,963 INFO L271 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: true [2020-08-22 19:00:40,964 INFO L271 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: true [2020-08-22 19:00:40,964 INFO L264 CegarLoopResult]: At program point L68-1(lines 24 88) the Hoare annotation is: (let ((.cse1 (= main_~p3~0 0)) (.cse4 (= main_~lk5~0 1)) (.cse5 (= main_~p4~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse3 (= main_~lk3~0 1)) (.cse2 (= main_~p5~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse1 .cse5 .cse4) (and .cse1 .cse2 .cse5) (and .cse0 .cse1 .cse4) (and .cse3 .cse5 .cse4) (and .cse3 .cse2 .cse5) (and .cse0 .cse3 .cse2))) [2020-08-22 19:00:40,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:00:40 BoogieIcfgContainer [2020-08-22 19:00:40,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:00:40,998 INFO L168 Benchmark]: Toolchain (without parser) took 5489.07 ms. Allocated memory was 145.8 MB in the beginning and 284.2 MB in the end (delta: 138.4 MB). Free memory was 103.4 MB in the beginning and 98.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 143.3 MB. Max. memory is 7.1 GB. [2020-08-22 19:00:40,999 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 19:00:41,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.27 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 93.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-08-22 19:00:41,007 INFO L168 Benchmark]: Boogie Preprocessor took 125.72 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 93.2 MB in the beginning and 181.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:00:41,010 INFO L168 Benchmark]: RCFGBuilder took 386.44 ms. Allocated memory is still 201.9 MB. Free memory was 181.6 MB in the beginning and 162.8 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-08-22 19:00:41,011 INFO L168 Benchmark]: TraceAbstraction took 4594.16 ms. Allocated memory was 201.9 MB in the beginning and 284.2 MB in the end (delta: 82.3 MB). Free memory was 162.8 MB in the beginning and 98.6 MB in the end (delta: 64.2 MB). Peak memory consumption was 146.6 MB. Max. memory is 7.1 GB. [2020-08-22 19:00:41,017 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 376.27 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 93.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.72 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 93.2 MB in the beginning and 181.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 386.44 ms. Allocated memory is still 201.9 MB. Free memory was 181.6 MB in the beginning and 162.8 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4594.16 ms. Allocated memory was 201.9 MB in the beginning and 284.2 MB in the end (delta: 82.3 MB). Free memory was 162.8 MB in the beginning and 98.6 MB in the end (delta: 64.2 MB). Peak memory consumption was 146.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: 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: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 4]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 956 SDtfs, 332 SDslu, 668 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=491occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 266 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 68 LocationsWithAnnotation, 68 PreInvPairs, 956 NumberOfFragments, 2378 HoareAnnotationTreeSize, 68 FomulaSimplifications, 9164 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 68 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...