/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:18:03,617 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 16:18:03,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:18:03,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:18:03,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:18:03,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:18:03,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:18:03,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:18:03,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:18:03,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:18:03,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:18:03,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:18:03,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:18:03,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:18:03,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:18:03,685 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 [2020-07-21 16:18:03,715 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:18:03,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:18:03,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:18:03,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:18:03,717 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:18:03,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:18:03,718 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:18:03,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:18:03,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:18:03,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:18:03,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:18:03,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:18:03,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:18:03,721 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:18:03,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:18:03,721 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:18:03,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:18:03,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:18:03,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:18:03,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:18:03,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:18:03,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:18:03,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:18:03,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:18:03,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:18:03,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:18:03,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:18:03,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:18:03,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:18:03,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC 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 -> 2 [2020-07-21 16:18:04,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:18:04,030 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:18:04,034 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:18:04,036 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:18:04,038 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:18:04,039 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2020-07-21 16:18:04,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e925ba126/10230a1c332a4a6b92bf47afdc361c07/FLAG3f9b5fbce [2020-07-21 16:18:04,572 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:18:04,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2020-07-21 16:18:04,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e925ba126/10230a1c332a4a6b92bf47afdc361c07/FLAG3f9b5fbce [2020-07-21 16:18:04,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e925ba126/10230a1c332a4a6b92bf47afdc361c07 [2020-07-21 16:18:04,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:18:04,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:18:04,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:18:04,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:18:04,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:18:04,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:18:04" (1/1) ... [2020-07-21 16:18:04,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41361c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:04, skipping insertion in model container [2020-07-21 16:18:04,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:18:04" (1/1) ... [2020-07-21 16:18:04,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:18:04,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:18:05,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:18:05,165 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:18:05,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:18:05,199 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:18:05,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:05 WrapperNode [2020-07-21 16:18:05,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:18:05,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:18:05,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:18:05,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:18:05,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:05" (1/1) ... [2020-07-21 16:18:05,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:05" (1/1) ... [2020-07-21 16:18:05,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:05" (1/1) ... [2020-07-21 16:18:05,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:05" (1/1) ... [2020-07-21 16:18:05,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:05" (1/1) ... [2020-07-21 16:18:05,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:05" (1/1) ... [2020-07-21 16:18:05,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:05" (1/1) ... [2020-07-21 16:18:05,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:18:05,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:18:05,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:18:05,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:18:05,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:05" (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 [2020-07-21 16:18:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:18:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:18:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-07-21 16:18:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-07-21 16:18:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-07-21 16:18:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:18:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:18:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-07-21 16:18:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-07-21 16:18:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 16:18:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 16:18:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-07-21 16:18:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:18:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 16:18:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 16:18:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:18:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:18:05,608 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:18:05,608 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 16:18:05,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:18:05 BoogieIcfgContainer [2020-07-21 16:18:05,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:18:05,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:18:05,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:18:05,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:18:05,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:18:04" (1/3) ... [2020-07-21 16:18:05,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf2c372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:18:05, skipping insertion in model container [2020-07-21 16:18:05,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:05" (2/3) ... [2020-07-21 16:18:05,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf2c372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:18:05, skipping insertion in model container [2020-07-21 16:18:05,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:18:05" (3/3) ... [2020-07-21 16:18:05,649 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_int.c_1.i [2020-07-21 16:18:05,676 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:18:05,695 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:18:05,715 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:18:05,739 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:18:05,739 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:18:05,739 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:18:05,739 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:18:05,740 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:18:05,740 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:18:05,740 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:18:05,740 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:18:05,765 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-21 16:18:05,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-21 16:18:05,771 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:18:05,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:18:05,773 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:18:05,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:18:05,779 INFO L82 PathProgramCache]: Analyzing trace with hash 589228543, now seen corresponding path program 1 times [2020-07-21 16:18:05,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:18:05,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033821420] [2020-07-21 16:18:05,788 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:18:05,876 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:18:05,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:18:05,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 16:18:05,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:18:05,950 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-07-21 16:18:05,951 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:18:05,960 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:18:05,961 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:18:05,961 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-07-21 16:18:06,021 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 16:18:06,023 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:18:06,026 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:18:06,027 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:18:06,027 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-07-21 16:18:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:18:06,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:18:06,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033821420] [2020-07-21 16:18:06,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:18:06,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:18:06,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313643993] [2020-07-21 16:18:06,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:18:06,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:18:06,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:18:06,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:18:06,079 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 5 states. [2020-07-21 16:18:06,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:18:06,159 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-07-21 16:18:06,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 16:18:06,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-21 16:18:06,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:18:06,170 INFO L225 Difference]: With dead ends: 46 [2020-07-21 16:18:06,171 INFO L226 Difference]: Without dead ends: 18 [2020-07-21 16:18:06,178 INFO L675 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 [2020-07-21 16:18:06,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-21 16:18:06,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-21 16:18:06,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-21 16:18:06,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-07-21 16:18:06,224 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2020-07-21 16:18:06,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:18:06,224 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-07-21 16:18:06,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:18:06,224 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-07-21 16:18:06,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-21 16:18:06,225 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:18:06,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:18:06,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:18:06,433 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:18:06,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:18:06,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1259031447, now seen corresponding path program 1 times [2020-07-21 16:18:06,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:18:06,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194077894] [2020-07-21 16:18:06,435 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:18:06,508 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:18:06,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:18:06,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-21 16:18:06,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:18:06,533 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-07-21 16:18:06,534 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:18:06,537 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:18:06,537 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:18:06,537 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-07-21 16:18:06,572 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 16:18:06,573 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:18:06,576 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:18:06,576 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:18:06,577 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-07-21 16:18:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:18:06,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:18:06,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194077894] [2020-07-21 16:18:06,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:18:06,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 16:18:06,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304813681] [2020-07-21 16:18:06,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:18:06,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:18:06,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:18:06,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:18:06,593 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 7 states. [2020-07-21 16:18:06,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:18:06,648 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-07-21 16:18:06,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:18:06,648 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-07-21 16:18:06,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:18:06,649 INFO L225 Difference]: With dead ends: 18 [2020-07-21 16:18:06,649 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:18:06,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:18:06,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:18:06,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:18:06,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:18:06,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:18:06,652 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-21 16:18:06,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:18:06,652 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:18:06,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:18:06,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:18:06,652 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:18:06,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:18:06,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:18:06,961 INFO L264 CegarLoopResult]: At program point mutex_unlockENTRY(lines 22 26) the Hoare annotation is: (or (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|))) (= (select (select |#memory_int| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2020-07-21 16:18:06,961 INFO L268 CegarLoopResult]: For program point mutex_unlockEXIT(lines 22 26) no Hoare annotation was computed. [2020-07-21 16:18:06,961 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-07-21 16:18:06,962 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|))) [2020-07-21 16:18:06,962 INFO L268 CegarLoopResult]: For program point mutex_unlockFINAL(lines 22 26) no Hoare annotation was computed. [2020-07-21 16:18:06,962 INFO L268 CegarLoopResult]: For program point L24-3(line 24) no Hoare annotation was computed. [2020-07-21 16:18:06,962 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:18:06,962 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:18:06,962 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:18:06,963 INFO L268 CegarLoopResult]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-07-21 16:18:06,963 INFO L268 CegarLoopResult]: For program point errEXIT(lines 13 14) no Hoare annotation was computed. [2020-07-21 16:18:06,963 INFO L271 CegarLoopResult]: At program point errENTRY(lines 13 14) the Hoare annotation is: true [2020-07-21 16:18:06,963 INFO L268 CegarLoopResult]: For program point errFINAL(lines 13 14) no Hoare annotation was computed. [2020-07-21 16:18:06,963 INFO L264 CegarLoopResult]: At program point mutex_lockENTRY(lines 16 20) the Hoare annotation is: (or (= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0) (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|)))) [2020-07-21 16:18:06,964 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|))) [2020-07-21 16:18:06,964 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-07-21 16:18:06,964 INFO L268 CegarLoopResult]: For program point mutex_lockFINAL(lines 16 20) no Hoare annotation was computed. [2020-07-21 16:18:06,964 INFO L268 CegarLoopResult]: For program point mutex_lockEXIT(lines 16 20) no Hoare annotation was computed. [2020-07-21 16:18:06,965 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-07-21 16:18:06,965 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:18:06,966 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 16:18:06,966 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:18:06,966 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:18:06,966 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (= 0 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-21 16:18:06,966 INFO L264 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: (= 1 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-21 16:18:06,967 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 28 40) the Hoare annotation is: true [2020-07-21 16:18:06,967 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 28 40) no Hoare annotation was computed. [2020-07-21 16:18:06,967 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 28 40) no Hoare annotation was computed. [2020-07-21 16:18:06,967 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-07-21 16:18:06,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:18:06 BoogieIcfgContainer [2020-07-21 16:18:06,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:18:06,979 INFO L168 Benchmark]: Toolchain (without parser) took 2014.02 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 101.8 MB in the beginning and 104.0 MB in the end (delta: -2.2 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. [2020-07-21 16:18:06,981 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 16:18:06,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.56 ms. Allocated memory is still 137.9 MB. Free memory was 101.4 MB in the beginning and 91.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-21 16:18:06,983 INFO L168 Benchmark]: Boogie Preprocessor took 29.89 ms. Allocated memory is still 137.9 MB. Free memory was 91.8 MB in the beginning and 90.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-07-21 16:18:06,988 INFO L168 Benchmark]: RCFGBuilder took 399.25 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 90.3 MB in the beginning and 169.1 MB in the end (delta: -78.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:18:06,989 INFO L168 Benchmark]: TraceAbstraction took 1344.13 ms. Allocated memory is still 202.9 MB. Free memory was 168.4 MB in the beginning and 104.0 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2020-07-21 16:18:07,000 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 234.56 ms. Allocated memory is still 137.9 MB. Free memory was 101.4 MB in the beginning and 91.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.89 ms. Allocated memory is still 137.9 MB. Free memory was 91.8 MB in the beginning and 90.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 399.25 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 90.3 MB in the beginning and 169.1 MB in the end (delta: -78.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1344.13 ms. Allocated memory is still 202.9 MB. Free memory was 168.4 MB in the beginning and 104.0 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 4 SDslu, 96 SDs, 0 SdLazy, 40 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 16 NumberOfFragments, 67 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1104 SizeOfPredicates, 14 NumberOfNonLiveVariables, 125 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 correct! Received shutdown request...