./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/time_var_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/time_var_mutex.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b685bacbbd5837a4875c8642768e5522c2d7b85 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:57:40,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:57:40,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:57:40,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:57:40,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:57:40,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:57:40,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:57:40,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:57:40,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:57:40,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:57:40,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:57:40,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:57:40,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:57:40,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:57:40,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:57:40,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:57:40,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:57:40,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:57:40,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:57:40,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:57:40,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:57:40,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:57:40,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:57:40,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:57:40,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:57:40,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:57:40,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:57:40,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:57:40,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:57:40,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:57:40,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:57:40,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:57:40,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:57:40,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:57:40,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:57:40,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:57:40,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:57:40,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:57:40,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:57:40,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:57:40,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:57:40,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:57:40,765 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:57:40,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:57:40,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:57:40,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:57:40,771 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:57:40,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:57:40,771 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:57:40,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:57:40,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:57:40,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:57:40,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:57:40,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:57:40,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:57:40,773 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:57:40,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:57:40,776 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:57:40,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:57:40,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:57:40,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:57:40,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:57:40,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:57:40,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:57:40,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:57:40,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:57:40,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:57:40,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:57:40,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:57:40,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:57:40,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:57:40,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b685bacbbd5837a4875c8642768e5522c2d7b85 [2019-11-28 17:57:41,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:57:41,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:57:41,138 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:57:41,140 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:57:41,142 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:57:41,143 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2019-11-28 17:57:41,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf474c94/0a675e224fab450e936f2b4aab8f30ae/FLAG8e8f35f80 [2019-11-28 17:57:41,727 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:57:41,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2019-11-28 17:57:41,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf474c94/0a675e224fab450e936f2b4aab8f30ae/FLAG8e8f35f80 [2019-11-28 17:57:42,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf474c94/0a675e224fab450e936f2b4aab8f30ae [2019-11-28 17:57:42,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:57:42,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:57:42,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:57:42,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:57:42,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:57:42,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:42" (1/1) ... [2019-11-28 17:57:42,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f78c059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42, skipping insertion in model container [2019-11-28 17:57:42,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:42" (1/1) ... [2019-11-28 17:57:42,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:57:42,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:57:42,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:57:42,562 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:57:42,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:57:42,698 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:57:42,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42 WrapperNode [2019-11-28 17:57:42,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:57:42,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:57:42,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:57:42,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:57:42,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42" (1/1) ... [2019-11-28 17:57:42,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42" (1/1) ... [2019-11-28 17:57:42,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:57:42,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:57:42,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:57:42,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:57:42,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42" (1/1) ... [2019-11-28 17:57:42,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42" (1/1) ... [2019-11-28 17:57:42,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42" (1/1) ... [2019-11-28 17:57:42,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42" (1/1) ... [2019-11-28 17:57:42,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42" (1/1) ... [2019-11-28 17:57:42,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42" (1/1) ... [2019-11-28 17:57:42,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42" (1/1) ... [2019-11-28 17:57:42,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:57:42,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:57:42,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:57:42,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:57:42,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42" (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 [2019-11-28 17:57:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2019-11-28 17:57:42,839 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2019-11-28 17:57:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 17:57:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2019-11-28 17:57:42,840 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2019-11-28 17:57:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 17:57:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-28 17:57:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:57:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 17:57:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 17:57:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:57:42,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:57:42,843 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 17:57:43,258 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:57:43,258 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 17:57:43,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:43 BoogieIcfgContainer [2019-11-28 17:57:43,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:57:43,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:57:43,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:57:43,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:57:43,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:57:42" (1/3) ... [2019-11-28 17:57:43,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9b6dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:43, skipping insertion in model container [2019-11-28 17:57:43,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:42" (2/3) ... [2019-11-28 17:57:43,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9b6dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:43, skipping insertion in model container [2019-11-28 17:57:43,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:43" (3/3) ... [2019-11-28 17:57:43,268 INFO L109 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2019-11-28 17:57:43,278 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 17:57:43,278 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:57:43,286 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 17:57:43,287 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 17:57:43,315 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,315 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,315 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,316 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,316 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,317 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,317 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,317 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,318 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,318 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,319 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,319 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,319 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,320 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,320 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,320 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,321 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,321 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:57:43,354 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-28 17:57:43,369 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:57:43,370 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:57:43,370 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:57:43,370 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:57:43,370 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:57:43,370 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:57:43,371 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:57:43,371 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:57:43,386 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 79 transitions [2019-11-28 17:57:43,388 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 80 places, 79 transitions [2019-11-28 17:57:43,438 INFO L134 PetriNetUnfolder]: 5/79 cut-off events. [2019-11-28 17:57:43,438 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 17:57:43,445 INFO L76 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 79 events. 5/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs. 19/92 useless extension candidates. Maximal degree in co-relation 49. Up to 3 conditions per place. [2019-11-28 17:57:43,449 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 80 places, 79 transitions [2019-11-28 17:57:43,474 INFO L134 PetriNetUnfolder]: 5/79 cut-off events. [2019-11-28 17:57:43,475 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 17:57:43,477 INFO L76 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 79 events. 5/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs. 19/92 useless extension candidates. Maximal degree in co-relation 49. Up to 3 conditions per place. [2019-11-28 17:57:43,482 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 886 [2019-11-28 17:57:43,483 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 17:57:45,513 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-11-28 17:57:46,073 WARN L192 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 108 [2019-11-28 17:57:46,261 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-11-28 17:57:46,274 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2175 [2019-11-28 17:57:46,274 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2019-11-28 17:57:46,278 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 32 transitions [2019-11-28 17:57:46,300 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 197 states. [2019-11-28 17:57:46,303 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-11-28 17:57:46,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 17:57:46,309 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:57:46,310 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 17:57:46,311 INFO L410 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:57:46,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:57:46,317 INFO L82 PathProgramCache]: Analyzing trace with hash 281465562, now seen corresponding path program 1 times [2019-11-28 17:57:46,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:57:46,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925167897] [2019-11-28 17:57:46,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:57:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:57:46,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:57:46,521 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925167897] [2019-11-28 17:57:46,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:57:46,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:57:46,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968926705] [2019-11-28 17:57:46,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:57:46,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:57:46,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:57:46,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:57:46,547 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 3 states. [2019-11-28 17:57:46,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:57:46,601 INFO L93 Difference]: Finished difference Result 197 states and 434 transitions. [2019-11-28 17:57:46,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:57:46,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-28 17:57:46,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:57:46,638 INFO L225 Difference]: With dead ends: 197 [2019-11-28 17:57:46,638 INFO L226 Difference]: Without dead ends: 167 [2019-11-28 17:57:46,640 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:57:46,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-11-28 17:57:46,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-11-28 17:57:46,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-11-28 17:57:46,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 363 transitions. [2019-11-28 17:57:46,698 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 363 transitions. Word has length 5 [2019-11-28 17:57:46,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:57:46,698 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 363 transitions. [2019-11-28 17:57:46,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:57:46,698 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 363 transitions. [2019-11-28 17:57:46,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 17:57:46,699 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:57:46,700 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:57:46,700 INFO L410 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:57:46,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:57:46,700 INFO L82 PathProgramCache]: Analyzing trace with hash -103168699, now seen corresponding path program 1 times [2019-11-28 17:57:46,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:57:46,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419538683] [2019-11-28 17:57:46,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:57:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:57:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:57:46,771 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419538683] [2019-11-28 17:57:46,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:57:46,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:57:46,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632973005] [2019-11-28 17:57:46,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:57:46,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:57:46,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:57:46,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:57:46,774 INFO L87 Difference]: Start difference. First operand 167 states and 363 transitions. Second operand 3 states. [2019-11-28 17:57:46,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:57:46,796 INFO L93 Difference]: Finished difference Result 182 states and 370 transitions. [2019-11-28 17:57:46,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:57:46,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-28 17:57:46,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:57:46,799 INFO L225 Difference]: With dead ends: 182 [2019-11-28 17:57:46,799 INFO L226 Difference]: Without dead ends: 157 [2019-11-28 17:57:46,800 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:57:46,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-28 17:57:46,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2019-11-28 17:57:46,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-11-28 17:57:46,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 302 transitions. [2019-11-28 17:57:46,823 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 302 transitions. Word has length 7 [2019-11-28 17:57:46,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:57:46,824 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 302 transitions. [2019-11-28 17:57:46,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:57:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 302 transitions. [2019-11-28 17:57:46,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 17:57:46,829 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:57:46,829 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:57:46,829 INFO L410 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:57:46,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:57:46,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1359574638, now seen corresponding path program 1 times [2019-11-28 17:57:46,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:57:46,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180581050] [2019-11-28 17:57:46,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:57:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:57:46,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:57:46,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180581050] [2019-11-28 17:57:46,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:57:46,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:57:46,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939099390] [2019-11-28 17:57:46,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:57:46,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:57:46,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:57:46,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:57:46,881 INFO L87 Difference]: Start difference. First operand 143 states and 302 transitions. Second operand 3 states. [2019-11-28 17:57:46,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:57:46,897 INFO L93 Difference]: Finished difference Result 138 states and 278 transitions. [2019-11-28 17:57:46,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:57:46,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 17:57:46,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:57:46,898 INFO L225 Difference]: With dead ends: 138 [2019-11-28 17:57:46,899 INFO L226 Difference]: Without dead ends: 84 [2019-11-28 17:57:46,899 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:57:46,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-28 17:57:46,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2019-11-28 17:57:46,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-11-28 17:57:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 151 transitions. [2019-11-28 17:57:46,907 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 151 transitions. Word has length 8 [2019-11-28 17:57:46,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:57:46,908 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 151 transitions. [2019-11-28 17:57:46,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:57:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 151 transitions. [2019-11-28 17:57:46,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 17:57:46,913 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:57:46,913 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:57:46,914 INFO L410 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:57:46,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:57:46,914 INFO L82 PathProgramCache]: Analyzing trace with hash -600337334, now seen corresponding path program 1 times [2019-11-28 17:57:46,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:57:46,914 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744714479] [2019-11-28 17:57:46,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:57:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:57:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:57:47,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744714479] [2019-11-28 17:57:47,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:57:47,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:57:47,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078238471] [2019-11-28 17:57:47,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:57:47,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:57:47,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:57:47,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:57:47,030 INFO L87 Difference]: Start difference. First operand 84 states and 151 transitions. Second operand 3 states. [2019-11-28 17:57:47,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:57:47,040 INFO L93 Difference]: Finished difference Result 84 states and 145 transitions. [2019-11-28 17:57:47,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:57:47,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-28 17:57:47,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:57:47,043 INFO L225 Difference]: With dead ends: 84 [2019-11-28 17:57:47,043 INFO L226 Difference]: Without dead ends: 72 [2019-11-28 17:57:47,043 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:57:47,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-11-28 17:57:47,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-11-28 17:57:47,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-11-28 17:57:47,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 124 transitions. [2019-11-28 17:57:47,049 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 124 transitions. Word has length 12 [2019-11-28 17:57:47,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:57:47,049 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 124 transitions. [2019-11-28 17:57:47,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:57:47,049 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2019-11-28 17:57:47,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 17:57:47,050 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:57:47,050 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:57:47,051 INFO L410 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:57:47,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:57:47,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1468459522, now seen corresponding path program 1 times [2019-11-28 17:57:47,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:57:47,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972141474] [2019-11-28 17:57:47,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:57:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:57:47,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:57:47,124 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972141474] [2019-11-28 17:57:47,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:57:47,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:57:47,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371786269] [2019-11-28 17:57:47,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:57:47,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:57:47,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:57:47,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:57:47,126 INFO L87 Difference]: Start difference. First operand 72 states and 124 transitions. Second operand 4 states. [2019-11-28 17:57:47,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:57:47,146 INFO L93 Difference]: Finished difference Result 22 states and 35 transitions. [2019-11-28 17:57:47,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 17:57:47,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-28 17:57:47,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:57:47,147 INFO L225 Difference]: With dead ends: 22 [2019-11-28 17:57:47,147 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:57:47,147 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:57:47,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:57:47,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:57:47,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:57:47,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:57:47,149 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-28 17:57:47,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:57:47,149 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:57:47,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:57:47,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:57:47,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:57:47,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:57:47 BasicIcfg [2019-11-28 17:57:47,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:57:47,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:57:47,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:57:47,154 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:57:47,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:43" (3/4) ... [2019-11-28 17:57:47,159 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:57:47,166 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2019-11-28 17:57:47,166 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2019-11-28 17:57:47,170 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-28 17:57:47,171 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 17:57:47,171 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 17:57:47,215 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:57:47,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:57:47,217 INFO L168 Benchmark]: Toolchain (without parser) took 5187.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -127.2 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. [2019-11-28 17:57:47,218 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:57:47,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -112.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 17:57:47,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 17:57:47,220 INFO L168 Benchmark]: Boogie Preprocessor took 26.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:57:47,220 INFO L168 Benchmark]: RCFGBuilder took 482.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2019-11-28 17:57:47,221 INFO L168 Benchmark]: TraceAbstraction took 3892.87 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -55.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. [2019-11-28 17:57:47,222 INFO L168 Benchmark]: Witness Printer took 61.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-28 17:57:47,227 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 669.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -112.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 482.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3892.87 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -55.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. * Witness Printer took 61.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.8s, 80 ProgramPointsBefore, 33 ProgramPointsAfterwards, 79 TransitionsBefore, 32 TransitionsAfterwards, 886 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 446 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 57 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 2175 CheckedPairsTotal, 58 TotalNumberOfCompositions - PositiveResult [Line: 688]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 696]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 74 locations, 2 error locations. Result: SAFE, OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 125 SDtfs, 69 SDslu, 59 SDs, 0 SdLazy, 20 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred 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, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 723 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...