/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 21:44:35,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 21:44:35,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 21:44:35,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 21:44:35,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 21:44:35,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 21:44:35,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 21:44:35,864 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 21:44:35,877 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 21:44:35,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 21:44:35,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 21:44:35,880 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 21:44:35,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 21:44:35,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 21:44:35,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 21:44:35,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 21:44:35,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 21:44:35,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 21:44:35,882 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 21:44:35,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 21:44:35,882 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 21:44:35,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 21:44:35,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 21:44:35,883 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 21:44:35,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 21:44:35,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 21:44:35,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 21:44:35,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 21:44:35,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 21:44:35,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 21:44:35,885 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 21:44:36,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 21:44:36,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 21:44:36,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 21:44:36,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 21:44:36,330 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 21:44:36,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-10-23 21:44:36,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea4cdeaa4/2ebe3eac288f4b6d9b0d2b989f976dc4/FLAG333a46ece [2020-10-23 21:44:37,040 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 21:44:37,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-10-23 21:44:37,051 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea4cdeaa4/2ebe3eac288f4b6d9b0d2b989f976dc4/FLAG333a46ece [2020-10-23 21:44:37,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea4cdeaa4/2ebe3eac288f4b6d9b0d2b989f976dc4 [2020-10-23 21:44:37,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 21:44:37,412 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 21:44:37,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 21:44:37,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 21:44:37,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 21:44:37,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:44:37" (1/1) ... [2020-10-23 21:44:37,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a30266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:37, skipping insertion in model container [2020-10-23 21:44:37,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:44:37" (1/1) ... [2020-10-23 21:44:37,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 21:44:37,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 21:44:37,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:44:37,660 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 21:44:37,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:44:37,709 INFO L208 MainTranslator]: Completed translation [2020-10-23 21:44:37,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:37 WrapperNode [2020-10-23 21:44:37,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 21:44:37,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 21:44:37,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 21:44:37,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 21:44:37,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:37" (1/1) ... [2020-10-23 21:44:37,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:37" (1/1) ... [2020-10-23 21:44:37,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:37" (1/1) ... [2020-10-23 21:44:37,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:37" (1/1) ... [2020-10-23 21:44:37,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:37" (1/1) ... [2020-10-23 21:44:37,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:37" (1/1) ... [2020-10-23 21:44:37,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:37" (1/1) ... [2020-10-23 21:44:37,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 21:44:37,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 21:44:37,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 21:44:37,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 21:44:37,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:37" (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 [2020-10-23 21:44:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 21:44:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 21:44:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 21:44:37,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 21:44:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2020-10-23 21:44:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2020-10-23 21:44:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 21:44:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 21:44:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 21:44:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 21:44:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 21:44:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 21:44:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 21:44:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 21:44:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 21:44:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2020-10-23 21:44:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 21:44:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2020-10-23 21:44:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 21:44:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 21:44:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 21:44:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 21:44:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 21:44:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 21:44:38,427 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 21:44:38,427 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-23 21:44:38,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:44:38 BoogieIcfgContainer [2020-10-23 21:44:38,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 21:44:38,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 21:44:38,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 21:44:38,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 21:44:38,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:44:37" (1/3) ... [2020-10-23 21:44:38,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d49b941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:44:38, skipping insertion in model container [2020-10-23 21:44:38,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:44:37" (2/3) ... [2020-10-23 21:44:38,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d49b941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:44:38, skipping insertion in model container [2020-10-23 21:44:38,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:44:38" (3/3) ... [2020-10-23 21:44:38,441 INFO L111 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2020-10-23 21:44:38,457 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 21:44:38,464 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 21:44:38,480 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 21:44:38,509 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 21:44:38,510 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 21:44:38,510 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 21:44:38,510 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 21:44:38,510 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 21:44:38,510 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 21:44:38,510 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 21:44:38,510 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 21:44:38,534 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-10-23 21:44:38,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-23 21:44:38,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:38,548 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] [2020-10-23 21:44:38,548 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:38,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:38,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1406159938, now seen corresponding path program 1 times [2020-10-23 21:44:38,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:38,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574601097] [2020-10-23 21:44:38,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:38,668 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:44:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:38,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:38,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:38,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574601097] [2020-10-23 21:44:38,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:38,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 21:44:38,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285392332] [2020-10-23 21:44:38,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 21:44:38,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:38,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 21:44:38,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 21:44:38,982 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 3 states. [2020-10-23 21:44:39,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:39,360 INFO L93 Difference]: Finished difference Result 257 states and 310 transitions. [2020-10-23 21:44:39,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 21:44:39,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-10-23 21:44:39,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:39,375 INFO L225 Difference]: With dead ends: 257 [2020-10-23 21:44:39,375 INFO L226 Difference]: Without dead ends: 129 [2020-10-23 21:44:39,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 21:44:39,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-23 21:44:39,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2020-10-23 21:44:39,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-23 21:44:39,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2020-10-23 21:44:39,463 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 29 [2020-10-23 21:44:39,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:39,463 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2020-10-23 21:44:39,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 21:44:39,466 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2020-10-23 21:44:39,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-23 21:44:39,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:39,471 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] [2020-10-23 21:44:39,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 21:44:39,472 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:39,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:39,473 INFO L82 PathProgramCache]: Analyzing trace with hash 338625719, now seen corresponding path program 1 times [2020-10-23 21:44:39,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:39,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475263593] [2020-10-23 21:44:39,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:39,484 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:44:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:39,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:39,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:39,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475263593] [2020-10-23 21:44:39,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:39,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 21:44:39,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679667731] [2020-10-23 21:44:39,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 21:44:39,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:39,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 21:44:39,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 21:44:39,642 INFO L87 Difference]: Start difference. First operand 129 states and 142 transitions. Second operand 4 states. [2020-10-23 21:44:40,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:40,069 INFO L93 Difference]: Finished difference Result 311 states and 350 transitions. [2020-10-23 21:44:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 21:44:40,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-10-23 21:44:40,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:40,074 INFO L225 Difference]: With dead ends: 311 [2020-10-23 21:44:40,074 INFO L226 Difference]: Without dead ends: 205 [2020-10-23 21:44:40,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 21:44:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-23 21:44:40,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 130. [2020-10-23 21:44:40,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-23 21:44:40,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-23 21:44:40,103 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 29 [2020-10-23 21:44:40,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:40,103 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-23 21:44:40,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 21:44:40,104 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-23 21:44:40,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-23 21:44:40,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:40,105 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] [2020-10-23 21:44:40,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 21:44:40,106 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:40,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:40,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1633252939, now seen corresponding path program 1 times [2020-10-23 21:44:40,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:40,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652528879] [2020-10-23 21:44:40,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:40,189 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 21:44:40,192 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:44:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:40,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:40,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:40,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652528879] [2020-10-23 21:44:40,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:40,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 21:44:40,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277782475] [2020-10-23 21:44:40,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 21:44:40,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:40,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 21:44:40,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 21:44:40,308 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 6 states. [2020-10-23 21:44:40,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:40,791 INFO L93 Difference]: Finished difference Result 318 states and 357 transitions. [2020-10-23 21:44:40,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 21:44:40,792 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-10-23 21:44:40,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:40,794 INFO L225 Difference]: With dead ends: 318 [2020-10-23 21:44:40,795 INFO L226 Difference]: Without dead ends: 212 [2020-10-23 21:44:40,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-23 21:44:40,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-23 21:44:40,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 137. [2020-10-23 21:44:40,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-23 21:44:40,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 150 transitions. [2020-10-23 21:44:40,816 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 150 transitions. Word has length 36 [2020-10-23 21:44:40,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:40,817 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 150 transitions. [2020-10-23 21:44:40,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 21:44:40,817 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 150 transitions. [2020-10-23 21:44:40,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-23 21:44:40,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:40,819 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 21:44:40,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 21:44:40,820 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:40,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:40,820 INFO L82 PathProgramCache]: Analyzing trace with hash -589493513, now seen corresponding path program 2 times [2020-10-23 21:44:40,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:40,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389815284] [2020-10-23 21:44:40,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:41,030 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 21:44:41,032 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:44:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:41,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:41,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:41,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389815284] [2020-10-23 21:44:41,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:41,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 21:44:41,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126806306] [2020-10-23 21:44:41,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 21:44:41,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:41,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 21:44:41,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 21:44:41,149 INFO L87 Difference]: Start difference. First operand 137 states and 150 transitions. Second operand 5 states. [2020-10-23 21:44:41,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:41,436 INFO L93 Difference]: Finished difference Result 249 states and 277 transitions. [2020-10-23 21:44:41,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 21:44:41,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-10-23 21:44:41,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:41,438 INFO L225 Difference]: With dead ends: 249 [2020-10-23 21:44:41,438 INFO L226 Difference]: Without dead ends: 142 [2020-10-23 21:44:41,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-23 21:44:41,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-23 21:44:41,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 136. [2020-10-23 21:44:41,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-23 21:44:41,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 148 transitions. [2020-10-23 21:44:41,456 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 148 transitions. Word has length 43 [2020-10-23 21:44:41,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:41,456 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 148 transitions. [2020-10-23 21:44:41,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 21:44:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 148 transitions. [2020-10-23 21:44:41,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-23 21:44:41,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:41,460 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 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] [2020-10-23 21:44:41,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 21:44:41,460 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:41,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:41,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1118065678, now seen corresponding path program 1 times [2020-10-23 21:44:41,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:41,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719052960] [2020-10-23 21:44:41,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:41,652 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 21:44:41,654 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:44:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:41,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:41,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-23 21:44:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:41,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 21:44:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:41,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:41,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719052960] [2020-10-23 21:44:41,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:41,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 21:44:41,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181654053] [2020-10-23 21:44:41,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 21:44:41,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:41,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 21:44:41,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-23 21:44:41,769 INFO L87 Difference]: Start difference. First operand 136 states and 148 transitions. Second operand 5 states. [2020-10-23 21:44:42,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:42,073 INFO L93 Difference]: Finished difference Result 271 states and 300 transitions. [2020-10-23 21:44:42,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 21:44:42,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 79 [2020-10-23 21:44:42,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:42,076 INFO L225 Difference]: With dead ends: 271 [2020-10-23 21:44:42,076 INFO L226 Difference]: Without dead ends: 178 [2020-10-23 21:44:42,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 21:44:42,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-23 21:44:42,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 137. [2020-10-23 21:44:42,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-23 21:44:42,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 149 transitions. [2020-10-23 21:44:42,092 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 149 transitions. Word has length 79 [2020-10-23 21:44:42,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:42,093 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 149 transitions. [2020-10-23 21:44:42,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 21:44:42,093 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 149 transitions. [2020-10-23 21:44:42,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-23 21:44:42,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:42,097 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 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, 1, 1, 1, 1] [2020-10-23 21:44:42,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 21:44:42,097 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:42,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:42,098 INFO L82 PathProgramCache]: Analyzing trace with hash -772837745, now seen corresponding path program 1 times [2020-10-23 21:44:42,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:42,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708497179] [2020-10-23 21:44:42,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:42,312 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 21:44:42,314 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:44:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:42,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:42,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-23 21:44:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:42,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 21:44:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:42,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:42,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708497179] [2020-10-23 21:44:42,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:42,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 21:44:42,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931446412] [2020-10-23 21:44:42,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 21:44:42,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:42,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 21:44:42,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-23 21:44:42,415 INFO L87 Difference]: Start difference. First operand 137 states and 149 transitions. Second operand 7 states. [2020-10-23 21:44:42,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:42,882 INFO L93 Difference]: Finished difference Result 278 states and 307 transitions. [2020-10-23 21:44:42,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 21:44:42,884 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 86 [2020-10-23 21:44:42,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:42,886 INFO L225 Difference]: With dead ends: 278 [2020-10-23 21:44:42,886 INFO L226 Difference]: Without dead ends: 185 [2020-10-23 21:44:42,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-23 21:44:42,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-23 21:44:42,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 144. [2020-10-23 21:44:42,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-23 21:44:42,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 156 transitions. [2020-10-23 21:44:42,911 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 156 transitions. Word has length 86 [2020-10-23 21:44:42,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:42,911 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 156 transitions. [2020-10-23 21:44:42,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 21:44:42,911 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 156 transitions. [2020-10-23 21:44:42,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-23 21:44:42,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:42,914 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-23 21:44:42,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 21:44:42,914 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:42,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:42,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1528164690, now seen corresponding path program 2 times [2020-10-23 21:44:42,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:42,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355737631] [2020-10-23 21:44:42,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:43,325 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 21:44:43,328 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:44:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:43,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:43,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-23 21:44:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:43,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-23 21:44:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:43,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:43,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355737631] [2020-10-23 21:44:43,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:43,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 21:44:43,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894427332] [2020-10-23 21:44:43,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 21:44:43,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:43,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 21:44:43,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 21:44:43,529 INFO L87 Difference]: Start difference. First operand 144 states and 156 transitions. Second operand 6 states. [2020-10-23 21:44:43,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:43,896 INFO L93 Difference]: Finished difference Result 230 states and 253 transitions. [2020-10-23 21:44:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 21:44:43,896 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-10-23 21:44:43,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:43,900 INFO L225 Difference]: With dead ends: 230 [2020-10-23 21:44:43,900 INFO L226 Difference]: Without dead ends: 150 [2020-10-23 21:44:43,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-23 21:44:43,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-23 21:44:43,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-23 21:44:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-23 21:44:43,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 163 transitions. [2020-10-23 21:44:43,918 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 163 transitions. Word has length 93 [2020-10-23 21:44:43,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:43,918 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 163 transitions. [2020-10-23 21:44:43,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 21:44:43,919 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 163 transitions. [2020-10-23 21:44:43,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-23 21:44:43,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:44:43,932 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-23 21:44:43,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 21:44:43,932 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:44:43,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:44:43,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1181788678, now seen corresponding path program 1 times [2020-10-23 21:44:43,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:44:43,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130122201] [2020-10-23 21:44:43,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:44:44,328 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 21:44:44,343 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:44:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:44,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:44:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:44,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-23 21:44:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:44,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-23 21:44:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:44:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:44:44,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130122201] [2020-10-23 21:44:44,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:44:44,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 21:44:44,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951239521] [2020-10-23 21:44:44,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 21:44:44,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:44:44,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 21:44:44,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-23 21:44:44,480 INFO L87 Difference]: Start difference. First operand 150 states and 163 transitions. Second operand 8 states. [2020-10-23 21:44:44,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:44:44,883 INFO L93 Difference]: Finished difference Result 194 states and 211 transitions. [2020-10-23 21:44:44,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 21:44:44,890 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2020-10-23 21:44:44,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:44:44,890 INFO L225 Difference]: With dead ends: 194 [2020-10-23 21:44:44,890 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 21:44:44,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-23 21:44:44,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 21:44:44,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 21:44:44,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 21:44:44,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 21:44:44,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2020-10-23 21:44:44,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:44:44,893 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 21:44:44,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 21:44:44,893 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 21:44:44,893 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 21:44:44,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 21:44:44,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 21:44:46,020 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,020 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,021 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,021 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,021 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,021 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,021 INFO L277 CegarLoopResult]: At program point elem_existsENTRY(lines 20 26) the Hoare annotation is: true [2020-10-23 21:44:46,022 INFO L270 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= elem_exists_~size |elem_exists_#in~size|) (<= 1 |elem_exists_#in~size|)) [2020-10-23 21:44:46,022 INFO L270 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (and (= elem_exists_~size |elem_exists_#in~size|) (<= 1 |elem_exists_#in~size|)) [2020-10-23 21:44:46,022 INFO L270 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (= elem_exists_~size |elem_exists_#in~size|) [2020-10-23 21:44:46,027 INFO L270 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (and (= elem_exists_~size |elem_exists_#in~size|) (<= 1 |elem_exists_#in~size|)) [2020-10-23 21:44:46,027 INFO L270 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: (and (= elem_exists_~size |elem_exists_#in~size|) (<= 1 |elem_exists_#in~size|)) [2020-10-23 21:44:46,028 INFO L270 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: (and (= elem_exists_~size |elem_exists_#in~size|) (<= 1 |elem_exists_#in~size|)) [2020-10-23 21:44:46,028 INFO L270 CegarLoopResult]: At program point elem_existsFINAL(lines 20 26) the Hoare annotation is: (let ((.cse0 (= elem_exists_~size |elem_exists_#in~size|))) (or (and (<= 0 elem_exists_~i~0) (<= 0 |elem_exists_#res|) .cse0 (<= |elem_exists_#res| 0)) (and .cse0 (<= 1 |elem_exists_#in~size|)))) [2020-10-23 21:44:46,028 INFO L270 CegarLoopResult]: At program point elem_existsEXIT(lines 20 26) the Hoare annotation is: (let ((.cse0 (= elem_exists_~size |elem_exists_#in~size|))) (or (and (<= 0 elem_exists_~i~0) (<= 0 |elem_exists_#res|) .cse0 (<= |elem_exists_#res| 0)) (and .cse0 (<= 1 |elem_exists_#in~size|)))) [2020-10-23 21:44:46,028 INFO L270 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (= elem_exists_~size |elem_exists_#in~size|) [2020-10-23 21:44:46,028 INFO L277 CegarLoopResult]: At program point L20(lines 20 26) the Hoare annotation is: true [2020-10-23 21:44:46,028 INFO L270 CegarLoopResult]: At program point L20-1(lines 20 26) the Hoare annotation is: (= elem_exists_~size |elem_exists_#in~size|) [2020-10-23 21:44:46,029 INFO L270 CegarLoopResult]: At program point L22-3(lines 22 24) the Hoare annotation is: (and (= elem_exists_~size |elem_exists_#in~size|) (<= 1 |elem_exists_#in~size|)) [2020-10-23 21:44:46,029 INFO L270 CegarLoopResult]: At program point L22-4(line 22) the Hoare annotation is: (and (= elem_exists_~size |elem_exists_#in~size|) (<= 1 |elem_exists_#in~size|)) [2020-10-23 21:44:46,029 INFO L270 CegarLoopResult]: At program point L22-5(line 22) the Hoare annotation is: (and (= elem_exists_~size |elem_exists_#in~size|) (<= 1 |elem_exists_#in~size|)) [2020-10-23 21:44:46,029 INFO L270 CegarLoopResult]: At program point L22-6(lines 22 24) the Hoare annotation is: (let ((.cse0 (= elem_exists_~size |elem_exists_#in~size|))) (or (and (<= 0 elem_exists_~i~0) .cse0) (and .cse0 (<= 1 |elem_exists_#in~size|)))) [2020-10-23 21:44:46,029 INFO L270 CegarLoopResult]: At program point L22-7(lines 22 24) the Hoare annotation is: (and (<= 0 elem_exists_~i~0) (= elem_exists_~size |elem_exists_#in~size|)) [2020-10-23 21:44:46,029 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,030 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,030 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,030 INFO L277 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,030 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,030 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,030 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#t~string1.offset)| |#t~string1.offset|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-23 21:44:46,030 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-23 21:44:46,031 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,031 INFO L277 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-10-23 21:44:46,031 INFO L277 CegarLoopResult]: At program point L16(lines 16 19) the Hoare annotation is: true [2020-10-23 21:44:46,031 INFO L277 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: true [2020-10-23 21:44:46,031 INFO L277 CegarLoopResult]: At program point insertENTRY(lines 16 19) the Hoare annotation is: true [2020-10-23 21:44:46,031 INFO L277 CegarLoopResult]: At program point L16-1(lines 16 19) the Hoare annotation is: true [2020-10-23 21:44:46,031 INFO L277 CegarLoopResult]: At program point insertFINAL(lines 16 19) the Hoare annotation is: true [2020-10-23 21:44:46,032 INFO L277 CegarLoopResult]: At program point insertEXIT(lines 16 19) the Hoare annotation is: true [2020-10-23 21:44:46,032 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,032 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,032 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,032 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-23 21:44:46,032 INFO L270 CegarLoopResult]: At program point L35-2(line 35) the Hoare annotation is: (= main_~n~0 0) [2020-10-23 21:44:46,032 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 27 67) the Hoare annotation is: true [2020-10-23 21:44:46,032 INFO L270 CegarLoopResult]: At program point L52(line 52) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,032 INFO L270 CegarLoopResult]: At program point L52-1(line 52) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,033 INFO L270 CegarLoopResult]: At program point L52-2(line 52) the Hoare annotation is: (and (= |main_#t~ret15| 0) (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,033 INFO L270 CegarLoopResult]: At program point L52-3(lines 52 54) the Hoare annotation is: (and (= |main_#t~ret15| 0) (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,033 INFO L270 CegarLoopResult]: At program point L52-4(line 52) the Hoare annotation is: false [2020-10-23 21:44:46,033 INFO L270 CegarLoopResult]: At program point L52-5(line 52) the Hoare annotation is: false [2020-10-23 21:44:46,033 INFO L270 CegarLoopResult]: At program point L52-7(line 52) the Hoare annotation is: (and (= |main_#t~ret15| 0) (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,033 INFO L270 CegarLoopResult]: At program point L44(line 44) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,033 INFO L270 CegarLoopResult]: At program point L52-8(line 52) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,034 INFO L270 CegarLoopResult]: At program point L52-9(lines 52 54) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,034 INFO L277 CegarLoopResult]: At program point L44-1(line 44) the Hoare annotation is: true [2020-10-23 21:44:46,034 INFO L277 CegarLoopResult]: At program point L44-2(line 44) the Hoare annotation is: true [2020-10-23 21:44:46,034 INFO L270 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: false [2020-10-23 21:44:46,034 INFO L270 CegarLoopResult]: At program point L61-3(line 61) the Hoare annotation is: false [2020-10-23 21:44:46,034 INFO L270 CegarLoopResult]: At program point L61-4(line 61) the Hoare annotation is: false [2020-10-23 21:44:46,034 INFO L270 CegarLoopResult]: At program point L61-5(lines 61 65) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,035 INFO L277 CegarLoopResult]: At program point L61-6(lines 61 65) the Hoare annotation is: true [2020-10-23 21:44:46,035 INFO L270 CegarLoopResult]: At program point L53(line 53) the Hoare annotation is: false [2020-10-23 21:44:46,035 INFO L270 CegarLoopResult]: At program point L53-1(line 53) the Hoare annotation is: false [2020-10-23 21:44:46,035 INFO L270 CegarLoopResult]: At program point L53-2(line 53) the Hoare annotation is: false [2020-10-23 21:44:46,035 INFO L270 CegarLoopResult]: At program point L53-3(line 53) the Hoare annotation is: false [2020-10-23 21:44:46,035 INFO L270 CegarLoopResult]: At program point L53-4(line 53) the Hoare annotation is: false [2020-10-23 21:44:46,035 INFO L270 CegarLoopResult]: At program point L53-5(line 53) the Hoare annotation is: false [2020-10-23 21:44:46,035 INFO L270 CegarLoopResult]: At program point L62(line 62) the Hoare annotation is: false [2020-10-23 21:44:46,036 INFO L270 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|) (= main_~n~0 0)) [2020-10-23 21:44:46,036 INFO L270 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= main_~n~0 0)) [2020-10-23 21:44:46,036 INFO L270 CegarLoopResult]: At program point L62-3(lines 62 64) the Hoare annotation is: false [2020-10-23 21:44:46,036 INFO L277 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: true [2020-10-23 21:44:46,036 INFO L270 CegarLoopResult]: At program point L62-4(line 62) the Hoare annotation is: false [2020-10-23 21:44:46,036 INFO L277 CegarLoopResult]: At program point L29-3(line 29) the Hoare annotation is: true [2020-10-23 21:44:46,036 INFO L270 CegarLoopResult]: At program point L62-5(line 62) the Hoare annotation is: false [2020-10-23 21:44:46,036 INFO L270 CegarLoopResult]: At program point L62-6(lines 62 64) the Hoare annotation is: false [2020-10-23 21:44:46,037 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 27 67) the Hoare annotation is: true [2020-10-23 21:44:46,037 INFO L270 CegarLoopResult]: At program point L63(line 63) the Hoare annotation is: false [2020-10-23 21:44:46,037 INFO L270 CegarLoopResult]: At program point L63-1(line 63) the Hoare annotation is: false [2020-10-23 21:44:46,037 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 27 67) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-23 21:44:46,037 INFO L270 CegarLoopResult]: At program point L63-2(line 63) the Hoare annotation is: false [2020-10-23 21:44:46,037 INFO L270 CegarLoopResult]: At program point L63-3(line 63) the Hoare annotation is: false [2020-10-23 21:44:46,037 INFO L270 CegarLoopResult]: At program point L63-4(line 63) the Hoare annotation is: false [2020-10-23 21:44:46,037 INFO L270 CegarLoopResult]: At program point L55-2(lines 55 59) the Hoare annotation is: false [2020-10-23 21:44:46,038 INFO L270 CegarLoopResult]: At program point L55-3(line 55) the Hoare annotation is: false [2020-10-23 21:44:46,038 INFO L270 CegarLoopResult]: At program point L55-4(line 55) the Hoare annotation is: false [2020-10-23 21:44:46,038 INFO L270 CegarLoopResult]: At program point L55-5(lines 55 59) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,038 INFO L270 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,038 INFO L270 CegarLoopResult]: At program point L47-3(lines 47 50) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,038 INFO L270 CegarLoopResult]: At program point L47-4(line 47) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,038 INFO L270 CegarLoopResult]: At program point L47-5(line 47) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,039 INFO L270 CegarLoopResult]: At program point L47-6(lines 47 50) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,039 INFO L270 CegarLoopResult]: At program point L47-7(lines 47 50) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,039 INFO L270 CegarLoopResult]: At program point L39-2(lines 39 43) the Hoare annotation is: false [2020-10-23 21:44:46,039 INFO L270 CegarLoopResult]: At program point L39-3(line 39) the Hoare annotation is: false [2020-10-23 21:44:46,039 INFO L270 CegarLoopResult]: At program point L39-4(line 39) the Hoare annotation is: false [2020-10-23 21:44:46,039 INFO L270 CegarLoopResult]: At program point L39-5(lines 39 43) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,039 INFO L270 CegarLoopResult]: At program point L39-6(lines 39 43) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,040 INFO L270 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= main_~n~0 0)) [2020-10-23 21:44:46,040 INFO L270 CegarLoopResult]: At program point L56(line 56) the Hoare annotation is: false [2020-10-23 21:44:46,040 INFO L270 CegarLoopResult]: At program point L56-3(lines 56 58) the Hoare annotation is: false [2020-10-23 21:44:46,040 INFO L270 CegarLoopResult]: At program point L56-4(line 56) the Hoare annotation is: false [2020-10-23 21:44:46,040 INFO L270 CegarLoopResult]: At program point L56-5(line 56) the Hoare annotation is: false [2020-10-23 21:44:46,040 INFO L270 CegarLoopResult]: At program point L56-6(lines 56 58) the Hoare annotation is: false [2020-10-23 21:44:46,040 INFO L270 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: false [2020-10-23 21:44:46,041 INFO L270 CegarLoopResult]: At program point L40-3(lines 40 42) the Hoare annotation is: false [2020-10-23 21:44:46,041 INFO L270 CegarLoopResult]: At program point L40-4(line 40) the Hoare annotation is: false [2020-10-23 21:44:46,041 INFO L270 CegarLoopResult]: At program point L40-5(line 40) the Hoare annotation is: false [2020-10-23 21:44:46,041 INFO L270 CegarLoopResult]: At program point L40-6(lines 40 42) the Hoare annotation is: false [2020-10-23 21:44:46,041 INFO L270 CegarLoopResult]: At program point L57(line 57) the Hoare annotation is: false [2020-10-23 21:44:46,041 INFO L270 CegarLoopResult]: At program point L57-1(line 57) the Hoare annotation is: false [2020-10-23 21:44:46,041 INFO L270 CegarLoopResult]: At program point L57-2(line 57) the Hoare annotation is: false [2020-10-23 21:44:46,041 INFO L270 CegarLoopResult]: At program point L57-3(line 57) the Hoare annotation is: false [2020-10-23 21:44:46,041 INFO L270 CegarLoopResult]: At program point L57-4(line 57) the Hoare annotation is: false [2020-10-23 21:44:46,042 INFO L270 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,042 INFO L270 CegarLoopResult]: At program point L49-1(line 49) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,042 INFO L270 CegarLoopResult]: At program point L49-2(line 49) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,042 INFO L270 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: false [2020-10-23 21:44:46,042 INFO L270 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: false [2020-10-23 21:44:46,042 INFO L270 CegarLoopResult]: At program point L41-2(line 41) the Hoare annotation is: false [2020-10-23 21:44:46,042 INFO L270 CegarLoopResult]: At program point L41-3(line 41) the Hoare annotation is: false [2020-10-23 21:44:46,042 INFO L270 CegarLoopResult]: At program point L41-4(line 41) the Hoare annotation is: false [2020-10-23 21:44:46,043 INFO L270 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= main_~n~0 0)) [2020-10-23 21:44:46,043 INFO L270 CegarLoopResult]: At program point L33-3(lines 33 36) the Hoare annotation is: (= main_~n~0 0) [2020-10-23 21:44:46,043 INFO L270 CegarLoopResult]: At program point L33-4(line 33) the Hoare annotation is: (= main_~n~0 0) [2020-10-23 21:44:46,043 INFO L270 CegarLoopResult]: At program point L33-5(line 33) the Hoare annotation is: (= main_~n~0 0) [2020-10-23 21:44:46,043 INFO L270 CegarLoopResult]: At program point L33-6(lines 33 36) the Hoare annotation is: (= main_~n~0 0) [2020-10-23 21:44:46,043 INFO L270 CegarLoopResult]: At program point L33-7(lines 33 36) the Hoare annotation is: (= main_~n~0 0) [2020-10-23 21:44:46,043 INFO L270 CegarLoopResult]: At program point L51-2(lines 51 60) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,044 INFO L270 CegarLoopResult]: At program point L51-3(line 51) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,044 INFO L270 CegarLoopResult]: At program point L51-4(line 51) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,044 INFO L270 CegarLoopResult]: At program point L51-5(lines 51 60) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,044 INFO L270 CegarLoopResult]: At program point L51-6(lines 51 60) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-23 21:44:46,044 INFO L270 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (= main_~n~0 0) [2020-10-23 21:44:46,044 INFO L270 CegarLoopResult]: At program point L35-1(line 35) the Hoare annotation is: (= main_~n~0 0) [2020-10-23 21:44:46,045 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 13) the Hoare annotation is: true [2020-10-23 21:44:46,045 INFO L277 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-10-23 21:44:46,045 INFO L277 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: true [2020-10-23 21:44:46,045 INFO L277 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: true [2020-10-23 21:44:46,045 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertEXIT(line 13) the Hoare annotation is: true [2020-10-23 21:44:46,045 INFO L277 CegarLoopResult]: At program point L13-4(line 13) the Hoare annotation is: true [2020-10-23 21:44:46,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:44:46 BoogieIcfgContainer [2020-10-23 21:44:46,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 21:44:46,071 INFO L168 Benchmark]: Toolchain (without parser) took 8663.26 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 128.0 MB in the beginning and 181.4 MB in the end (delta: -53.5 MB). Peak memory consumption was 120.1 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:46,071 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 21:44:46,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.46 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 117.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:46,073 INFO L168 Benchmark]: Boogie Preprocessor took 88.93 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:46,074 INFO L168 Benchmark]: RCFGBuilder took 628.23 ms. Allocated memory is still 151.0 MB. Free memory was 115.1 MB in the beginning and 121.3 MB in the end (delta: -6.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:46,075 INFO L168 Benchmark]: TraceAbstraction took 7636.23 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 120.8 MB in the beginning and 181.4 MB in the end (delta: -60.6 MB). Peak memory consumption was 111.9 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:46,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 297.46 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 117.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 88.93 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 628.23 ms. Allocated memory is still 151.0 MB. Free memory was 115.1 MB in the beginning and 121.3 MB in the end (delta: -6.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7636.23 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 120.8 MB in the beginning and 181.4 MB in the end (delta: -60.6 MB). Peak memory consumption was 111.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 33]: Loop Invariant Derived loop invariant: n == 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (0 <= i && size == \old(size)) || (size == \old(size) && 1 <= \old(size)) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: x == 0 && n == 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: x == 0 && n == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: x == 0 && n == 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: x == 0 && n == 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: x == 0 && n == 0 - ProcedureContractResult [Line: 12]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for elem_exists Derived contract for procedure elem_exists: (((0 <= i && 0 <= \result) && size == \old(size)) && \result <= 0) || (size == \old(size) && 1 <= \old(size)) - ProcedureContractResult [Line: 16]: Procedure Contract for insert Derived contract for procedure insert: 1 - ProcedureContractResult [Line: 27]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 13]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 142 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 938 SDtfs, 796 SDslu, 1102 SDs, 0 SdLazy, 1468 SolverSat, 131 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=7, 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, 8 MinimizatonAttempts, 238 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 142 LocationsWithAnnotation, 534 PreInvPairs, 604 NumberOfFragments, 500 HoareAnnotationTreeSize, 534 FomulaSimplifications, 1302 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 142 FomulaSimplificationsInter, 598 FormulaSimplificationTreeSizeReductionInter, 0.6s 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...