/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 --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 01:27:51,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 01:27:51,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 01:27:51,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-20 01:27:51,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 01:27:51,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 01:27:51,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 01:27:51,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 01:27:51,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 01:27:51,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 01:27:51,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 01:27:51,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 01:27:51,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 01:27:51,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 01:27:51,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 01:27:51,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 01:27:51,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 01:27:51,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 01:27:51,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 01:27:51,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 01:27:51,555 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 01:27:51,592 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 01:27:51,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 01:27:51,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 01:27:51,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 01:27:51,597 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 01:27:51,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 01:27:51,598 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 01:27:51,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 01:27:51,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 01:27:51,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 01:27:51,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 01:27:51,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 01:27:51,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 01:27:51,599 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 01:27:51,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 01:27:51,600 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 01:27:51,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 01:27:51,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 01:27:51,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 01:27:51,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 01:27:51,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 01:27:51,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:27:51,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 01:27:51,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 01:27:51,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 01:27:51,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 01:27:51,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 01:27:51,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 01:27:51,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 01:27:51,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 01:27:51,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 01:27:51,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 01:27:51,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 01:27:51,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 01:27:51,912 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 01:27:51,913 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_15-1.c [2020-07-20 01:27:51,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c38ee937/286af0c8ccc44fc09cce63551d9ca3ec/FLAGa2fe752d9 [2020-07-20 01:27:52,436 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 01:27:52,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_15-1.c [2020-07-20 01:27:52,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c38ee937/286af0c8ccc44fc09cce63551d9ca3ec/FLAGa2fe752d9 [2020-07-20 01:27:52,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c38ee937/286af0c8ccc44fc09cce63551d9ca3ec [2020-07-20 01:27:52,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 01:27:52,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 01:27:52,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 01:27:52,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 01:27:52,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 01:27:52,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:27:52" (1/1) ... [2020-07-20 01:27:52,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a95975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:27:52, skipping insertion in model container [2020-07-20 01:27:52,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:27:52" (1/1) ... [2020-07-20 01:27:52,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 01:27:52,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 01:27:53,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:27:53,144 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 01:27:53,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:27:53,191 INFO L208 MainTranslator]: Completed translation [2020-07-20 01:27:53,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:27:53 WrapperNode [2020-07-20 01:27:53,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 01:27:53,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 01:27:53,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 01:27:53,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 01:27:53,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:27:53" (1/1) ... [2020-07-20 01:27:53,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:27:53" (1/1) ... [2020-07-20 01:27:53,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:27:53" (1/1) ... [2020-07-20 01:27:53,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:27:53" (1/1) ... [2020-07-20 01:27:53,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:27:53" (1/1) ... [2020-07-20 01:27:53,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:27:53" (1/1) ... [2020-07-20 01:27:53,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:27:53" (1/1) ... [2020-07-20 01:27:53,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 01:27:53,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 01:27:53,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 01:27:53,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 01:27:53,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:27:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:27:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 01:27:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 01:27:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 01:27:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 01:27:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 01:27:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 01:27:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 01:27:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 01:27:53,811 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 01:27:53,811 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 01:27:53,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:27:53 BoogieIcfgContainer [2020-07-20 01:27:53,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 01:27:53,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 01:27:53,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 01:27:53,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 01:27:53,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:27:52" (1/3) ... [2020-07-20 01:27:53,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13224f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:27:53, skipping insertion in model container [2020-07-20 01:27:53,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:27:53" (2/3) ... [2020-07-20 01:27:53,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13224f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:27:53, skipping insertion in model container [2020-07-20 01:27:53,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:27:53" (3/3) ... [2020-07-20 01:27:53,823 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2020-07-20 01:27:53,832 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 01:27:53,840 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 01:27:53,855 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 01:27:53,878 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 01:27:53,878 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 01:27:53,878 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 01:27:53,878 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 01:27:53,878 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 01:27:53,879 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 01:27:53,879 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 01:27:53,879 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 01:27:53,898 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2020-07-20 01:27:53,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-20 01:27:53,905 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:27:53,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:27:53,907 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:27:53,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:27:53,913 INFO L82 PathProgramCache]: Analyzing trace with hash -563352914, now seen corresponding path program 1 times [2020-07-20 01:27:53,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:27:53,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353979321] [2020-07-20 01:27:53,923 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2d7321c4 [2020-07-20 01:27:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:27:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:27:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:27:54,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353979321] [2020-07-20 01:27:54,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:27:54,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 01:27:54,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095556990] [2020-07-20 01:27:54,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 01:27:54,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:27:54,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 01:27:54,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 01:27:54,224 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 3 states. [2020-07-20 01:27:54,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:27:54,295 INFO L93 Difference]: Finished difference Result 164 states and 305 transitions. [2020-07-20 01:27:54,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 01:27:54,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-20 01:27:54,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:27:54,311 INFO L225 Difference]: With dead ends: 164 [2020-07-20 01:27:54,312 INFO L226 Difference]: Without dead ends: 102 [2020-07-20 01:27:54,316 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 [2020-07-20 01:27:54,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-07-20 01:27:54,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2020-07-20 01:27:54,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-20 01:27:54,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 186 transitions. [2020-07-20 01:27:54,379 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 186 transitions. Word has length 25 [2020-07-20 01:27:54,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:27:54,380 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 186 transitions. [2020-07-20 01:27:54,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 01:27:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 186 transitions. [2020-07-20 01:27:54,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-20 01:27:54,383 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:27:54,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:27:54,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 01:27:54,384 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:27:54,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:27:54,384 INFO L82 PathProgramCache]: Analyzing trace with hash -563360106, now seen corresponding path program 1 times [2020-07-20 01:27:54,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:27:54,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763332595] [2020-07-20 01:27:54,385 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2d7321c4 [2020-07-20 01:27:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:27:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:27:54,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:27:54,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763332595] [2020-07-20 01:27:54,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:27:54,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 01:27:54,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962276071] [2020-07-20 01:27:54,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 01:27:54,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:27:54,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 01:27:54,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 01:27:54,543 INFO L87 Difference]: Start difference. First operand 100 states and 186 transitions. Second operand 3 states. [2020-07-20 01:27:54,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:27:54,589 INFO L93 Difference]: Finished difference Result 103 states and 189 transitions. [2020-07-20 01:27:54,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 01:27:54,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-20 01:27:54,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:27:54,593 INFO L225 Difference]: With dead ends: 103 [2020-07-20 01:27:54,594 INFO L226 Difference]: Without dead ends: 101 [2020-07-20 01:27:54,595 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 [2020-07-20 01:27:54,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-20 01:27:54,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-07-20 01:27:54,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-07-20 01:27:54,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 187 transitions. [2020-07-20 01:27:54,626 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 187 transitions. Word has length 25 [2020-07-20 01:27:54,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:27:54,627 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 187 transitions. [2020-07-20 01:27:54,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 01:27:54,627 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 187 transitions. [2020-07-20 01:27:54,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-20 01:27:54,628 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:27:54,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:27:54,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 01:27:54,630 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:27:54,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:27:54,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1737469676, now seen corresponding path program 1 times [2020-07-20 01:27:54,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:27:54,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153429600] [2020-07-20 01:27:54,632 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2d7321c4 [2020-07-20 01:27:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:27:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:27:54,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:27:54,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153429600] [2020-07-20 01:27:54,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:27:54,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 01:27:54,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697592008] [2020-07-20 01:27:54,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 01:27:54,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:27:54,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 01:27:54,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 01:27:54,705 INFO L87 Difference]: Start difference. First operand 101 states and 187 transitions. Second operand 3 states. [2020-07-20 01:27:54,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:27:54,734 INFO L93 Difference]: Finished difference Result 236 states and 440 transitions. [2020-07-20 01:27:54,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 01:27:54,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-20 01:27:54,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:27:54,737 INFO L225 Difference]: With dead ends: 236 [2020-07-20 01:27:54,737 INFO L226 Difference]: Without dead ends: 140 [2020-07-20 01:27:54,738 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 [2020-07-20 01:27:54,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-20 01:27:54,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2020-07-20 01:27:54,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-07-20 01:27:54,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 253 transitions. [2020-07-20 01:27:54,752 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 253 transitions. Word has length 25 [2020-07-20 01:27:54,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:27:54,753 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 253 transitions. [2020-07-20 01:27:54,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 01:27:54,753 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 253 transitions. [2020-07-20 01:27:54,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-20 01:27:54,755 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:27:54,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:27:54,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 01:27:54,756 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:27:54,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:27:54,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1737462484, now seen corresponding path program 1 times [2020-07-20 01:27:54,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:27:54,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782379048] [2020-07-20 01:27:54,758 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2d7321c4 [2020-07-20 01:27:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:27:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:27:54,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:27:54,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782379048] [2020-07-20 01:27:54,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:27:54,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 01:27:54,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120935425] [2020-07-20 01:27:54,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 01:27:54,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:27:54,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 01:27:54,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 01:27:54,811 INFO L87 Difference]: Start difference. First operand 138 states and 253 transitions. Second operand 3 states. [2020-07-20 01:27:54,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:27:54,835 INFO L93 Difference]: Finished difference Result 190 states and 344 transitions. [2020-07-20 01:27:54,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 01:27:54,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-20 01:27:54,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:27:54,838 INFO L225 Difference]: With dead ends: 190 [2020-07-20 01:27:54,838 INFO L226 Difference]: Without dead ends: 138 [2020-07-20 01:27:54,839 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 [2020-07-20 01:27:54,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-07-20 01:27:54,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2020-07-20 01:27:54,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-07-20 01:27:54,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 246 transitions. [2020-07-20 01:27:54,853 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 246 transitions. Word has length 25 [2020-07-20 01:27:54,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:27:54,853 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 246 transitions. [2020-07-20 01:27:54,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 01:27:54,854 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 246 transitions. [2020-07-20 01:27:54,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-20 01:27:54,855 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:27:54,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:27:54,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 01:27:54,856 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:27:54,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:27:54,856 INFO L82 PathProgramCache]: Analyzing trace with hash 149121774, now seen corresponding path program 1 times [2020-07-20 01:27:54,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:27:54,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535030342] [2020-07-20 01:27:54,857 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2d7321c4 [2020-07-20 01:27:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 01:27:54,882 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 01:27:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 01:27:54,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 01:27:54,934 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 01:27:54,934 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 01:27:54,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 01:27:55,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:27:55 BoogieIcfgContainer [2020-07-20 01:27:55,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 01:27:55,015 INFO L168 Benchmark]: Toolchain (without parser) took 2141.66 ms. Allocated memory was 138.9 MB in the beginning and 235.4 MB in the end (delta: 96.5 MB). Free memory was 103.7 MB in the beginning and 205.6 MB in the end (delta: -101.9 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2020-07-20 01:27:55,017 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 01:27:55,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.46 ms. Allocated memory is still 138.9 MB. Free memory was 103.3 MB in the beginning and 91.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-07-20 01:27:55,022 INFO L168 Benchmark]: Boogie Preprocessor took 128.10 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 91.8 MB in the beginning and 180.7 MB in the end (delta: -88.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-07-20 01:27:55,023 INFO L168 Benchmark]: RCFGBuilder took 494.72 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 157.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-07-20 01:27:55,024 INFO L168 Benchmark]: TraceAbstraction took 1196.31 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 156.5 MB in the beginning and 205.6 MB in the end (delta: -49.2 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. [2020-07-20 01:27:55,028 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 315.46 ms. Allocated memory is still 138.9 MB. Free memory was 103.3 MB in the beginning and 91.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.10 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 91.8 MB in the beginning and 180.7 MB in the end (delta: -88.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 494.72 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 157.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1196.31 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 156.5 MB in the beginning and 205.6 MB in the end (delta: -49.2 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 231]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] int p1 = __VERIFIER_nondet_int(); [L7] int lk1; [L9] int p2 = __VERIFIER_nondet_int(); [L10] int lk2; [L12] int p3 = __VERIFIER_nondet_int(); [L13] int lk3; [L15] int p4 = __VERIFIER_nondet_int(); [L16] int lk4; [L18] int p5 = __VERIFIER_nondet_int(); [L19] int lk5; [L21] int p6 = __VERIFIER_nondet_int(); [L22] int lk6; [L24] int p7 = __VERIFIER_nondet_int(); [L25] int lk7; [L27] int p8 = __VERIFIER_nondet_int(); [L28] int lk8; [L30] int p9 = __VERIFIER_nondet_int(); [L31] int lk9; [L33] int p10 = __VERIFIER_nondet_int(); [L34] int lk10; [L36] int p11 = __VERIFIER_nondet_int(); [L37] int lk11; [L39] int p12 = __VERIFIER_nondet_int(); [L40] int lk12; [L42] int p13 = __VERIFIER_nondet_int(); [L43] int lk13; [L45] int p14 = __VERIFIER_nondet_int(); [L46] int lk14; [L48] int p15 = __VERIFIER_nondet_int(); [L49] int lk15; [L52] int cond; VAL [p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L54] COND TRUE 1 [L55] cond = __VERIFIER_nondet_int() [L56] COND FALSE !(cond == 0) [L59] lk1 = 0 [L61] lk2 = 0 [L63] lk3 = 0 [L65] lk4 = 0 [L67] lk5 = 0 [L69] lk6 = 0 [L71] lk7 = 0 [L73] lk8 = 0 [L75] lk9 = 0 [L77] lk10 = 0 [L79] lk11 = 0 [L81] lk12 = 0 [L83] lk13 = 0 [L85] lk14 = 0 [L87] lk15 = 0 VAL [cond=-2, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L91] COND FALSE !(p1 != 0) VAL [cond=-2, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L95] COND FALSE !(p2 != 0) VAL [cond=-2, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L99] COND TRUE p3 != 0 [L100] lk3 = 1 VAL [cond=-2, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L103] COND TRUE p4 != 0 [L104] lk4 = 1 VAL [cond=-2, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L107] COND TRUE p5 != 0 [L108] lk5 = 1 VAL [cond=-2, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L111] COND TRUE p6 != 0 [L112] lk6 = 1 VAL [cond=-2, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L115] COND TRUE p7 != 0 [L116] lk7 = 1 VAL [cond=-2, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L119] COND FALSE !(p8 != 0) VAL [cond=-2, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L123] COND TRUE p9 != 0 [L124] lk9 = 1 VAL [cond=-2, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L127] COND TRUE p10 != 0 [L128] lk10 = 1 VAL [cond=-2, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L131] COND TRUE p11 != 0 [L132] lk11 = 1 VAL [cond=-2, lk1=0, lk10=1, lk11=1, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L135] COND TRUE p12 != 0 [L136] lk12 = 1 VAL [cond=-2, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L139] COND TRUE p13 != 0 [L140] lk13 = 1 VAL [cond=-2, lk1=0, lk10=1, lk11=1, lk12=1, lk13=1, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L143] COND TRUE p14 != 0 [L144] lk14 = 1 VAL [cond=-2, lk1=0, lk10=1, lk11=1, lk12=1, lk13=1, lk14=1, lk15=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L147] COND TRUE p15 != 0 [L148] lk15 = 1 VAL [cond=-2, lk1=0, lk10=1, lk11=1, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L153] COND FALSE !(p1 != 0) VAL [cond=-2, lk1=0, lk10=1, lk11=1, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L158] COND FALSE !(p2 != 0) VAL [cond=-2, lk1=0, lk10=1, lk11=1, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] [L231] __VERIFIER_error() VAL [cond=-2, lk1=0, lk10=1, lk11=1, lk12=1, lk13=1, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=1, p1=0, p10=1, p11=1, p12=1, p13=1, p14=1, p15=1, p2=0, p3=1, p4=2, p5=1, p6=1, p7=-1, p8=0, p9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 488 SDtfs, 243 SDslu, 321 SDs, 0 SdLazy, 20 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=3, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 5952 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...