./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i -s /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27e2f315de443e202cbc54a2cdc7db0fe3a55a0e .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:17:15,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:17:15,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:17:15,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:17:15,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:17:15,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:17:15,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:17:15,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:17:15,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:17:15,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:17:15,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:17:15,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:17:15,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:17:15,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:17:15,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:17:15,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:17:15,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:17:15,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:17:15,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:17:15,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:17:15,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:17:15,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:17:15,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:17:15,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:17:15,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:17:15,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:17:15,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:17:15,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:17:15,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:17:15,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:17:15,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:17:15,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:17:15,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:17:15,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:17:15,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:17:15,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:17:15,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:17:15,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:17:15,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:17:15,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:17:15,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:17:15,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:17:15,742 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:17:15,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:17:15,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:17:15,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:17:15,745 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:17:15,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:17:15,745 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:17:15,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:17:15,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:17:15,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:17:15,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:17:15,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:17:15,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:17:15,747 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:17:15,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:17:15,748 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:17:15,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:17:15,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:17:15,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:17:15,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:17:15,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:17:15,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:17:15,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:17:15,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:17:15,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:17:15,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:17:15,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:17:15,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:17:15,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:17:15,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e2f315de443e202cbc54a2cdc7db0fe3a55a0e [2020-11-28 03:17:16,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:17:16,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:17:16,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:17:16,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:17:16,098 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:17:16,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2020-11-28 03:17:16,232 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/data/f3e1c3103/3d0b756540aa4ee988ce62ea41e655cc/FLAGc57d7fac7 [2020-11-28 03:17:16,836 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:17:16,837 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2020-11-28 03:17:16,860 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/data/f3e1c3103/3d0b756540aa4ee988ce62ea41e655cc/FLAGc57d7fac7 [2020-11-28 03:17:17,133 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/data/f3e1c3103/3d0b756540aa4ee988ce62ea41e655cc [2020-11-28 03:17:17,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:17:17,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:17:17,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:17:17,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:17:17,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:17:17,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a468ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17, skipping insertion in model container [2020-11-28 03:17:17,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:17:17,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:17:17,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:17:17,720 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:17:17,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:17:17,914 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:17:17,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17 WrapperNode [2020-11-28 03:17:17,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:17:17,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:17:17,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:17:17,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:17:17,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:17:17,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:17:17,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:17:17,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:17:17,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:18,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:18,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:18,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:18,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:18,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:18,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:17:18,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:17:18,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:17:18,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:17:18,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/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 [2020-11-28 03:17:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-11-28 03:17:18,154 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-11-28 03:17:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:17:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-11-28 03:17:18,157 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-11-28 03:17:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:17:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-28 03:17:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:17:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:17:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:17:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:17:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:17:18,163 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-28 03:17:18,832 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:17:18,832 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 03:17:18,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:18 BoogieIcfgContainer [2020-11-28 03:17:18,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:17:18,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:17:18,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:17:18,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:17:18,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:17:17" (1/3) ... [2020-11-28 03:17:18,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c09a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:18, skipping insertion in model container [2020-11-28 03:17:18,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17" (2/3) ... [2020-11-28 03:17:18,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c09a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:18, skipping insertion in model container [2020-11-28 03:17:18,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:18" (3/3) ... [2020-11-28 03:17:18,845 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-11-28 03:17:18,859 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-28 03:17:18,859 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:17:18,865 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:17:18,866 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-28 03:17:18,895 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,895 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,896 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,896 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,896 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,897 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,897 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,897 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,898 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,898 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,898 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,899 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,899 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,899 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,900 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,900 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,900 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,901 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,901 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,901 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,902 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,902 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,902 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,902 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,903 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,903 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,905 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,906 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,906 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,906 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,906 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,907 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,907 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,907 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,912 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,913 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,913 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,913 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,914 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,914 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,914 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:18,927 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-28 03:17:18,940 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-28 03:17:18,966 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:17:18,966 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:17:18,966 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:17:18,967 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:17:18,967 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:17:18,967 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:17:18,967 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:17:18,967 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:17:18,983 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-28 03:17:18,987 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 98 transitions, 218 flow [2020-11-28 03:17:18,992 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 98 transitions, 218 flow [2020-11-28 03:17:18,995 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 96 places, 98 transitions, 218 flow [2020-11-28 03:17:19,092 INFO L129 PetriNetUnfolder]: 8/98 cut-off events. [2020-11-28 03:17:19,092 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-11-28 03:17:19,098 INFO L80 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 98 events. 8/98 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2020-11-28 03:17:19,105 INFO L116 LiptonReduction]: Number of co-enabled transitions 1376 [2020-11-28 03:17:19,487 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2020-11-28 03:17:21,978 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-28 03:17:22,564 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-11-28 03:17:22,732 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-28 03:17:23,656 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 137 [2020-11-28 03:17:24,050 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-11-28 03:17:24,074 INFO L131 LiptonReduction]: Checked pairs total: 4493 [2020-11-28 03:17:24,074 INFO L133 LiptonReduction]: Total number of compositions: 94 [2020-11-28 03:17:24,080 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 33 transitions, 88 flow [2020-11-28 03:17:24,110 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 197 states. [2020-11-28 03:17:24,113 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2020-11-28 03:17:24,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:17:24,120 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:24,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:17:24,121 INFO L429 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:24,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:24,129 INFO L82 PathProgramCache]: Analyzing trace with hash 370145274, now seen corresponding path program 1 times [2020-11-28 03:17:24,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:24,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954009016] [2020-11-28 03:17:24,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:24,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:24,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954009016] [2020-11-28 03:17:24,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:24,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:17:24,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045851059] [2020-11-28 03:17:24,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:17:24,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:24,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:17:24,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:17:24,400 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 3 states. [2020-11-28 03:17:24,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:24,446 INFO L93 Difference]: Finished difference Result 197 states and 434 transitions. [2020-11-28 03:17:24,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:17:24,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-28 03:17:24,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:24,463 INFO L225 Difference]: With dead ends: 197 [2020-11-28 03:17:24,463 INFO L226 Difference]: Without dead ends: 167 [2020-11-28 03:17:24,465 INFO L677 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 [2020-11-28 03:17:24,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-11-28 03:17:24,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2020-11-28 03:17:24,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-11-28 03:17:24,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 363 transitions. [2020-11-28 03:17:24,528 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 363 transitions. Word has length 5 [2020-11-28 03:17:24,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:24,529 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 363 transitions. [2020-11-28 03:17:24,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:17:24,530 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 363 transitions. [2020-11-28 03:17:24,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:17:24,531 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:24,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:24,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:17:24,532 INFO L429 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:24,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:24,533 INFO L82 PathProgramCache]: Analyzing trace with hash -791989179, now seen corresponding path program 1 times [2020-11-28 03:17:24,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:24,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949121414] [2020-11-28 03:17:24,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:24,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:24,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949121414] [2020-11-28 03:17:24,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:24,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:17:24,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494401714] [2020-11-28 03:17:24,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:17:24,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:24,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:17:24,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:17:24,656 INFO L87 Difference]: Start difference. First operand 167 states and 363 transitions. Second operand 3 states. [2020-11-28 03:17:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:24,686 INFO L93 Difference]: Finished difference Result 182 states and 370 transitions. [2020-11-28 03:17:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:17:24,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-28 03:17:24,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:24,690 INFO L225 Difference]: With dead ends: 182 [2020-11-28 03:17:24,690 INFO L226 Difference]: Without dead ends: 157 [2020-11-28 03:17:24,691 INFO L677 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 [2020-11-28 03:17:24,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-11-28 03:17:24,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2020-11-28 03:17:24,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-11-28 03:17:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 302 transitions. [2020-11-28 03:17:24,721 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 302 transitions. Word has length 7 [2020-11-28 03:17:24,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:24,722 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 302 transitions. [2020-11-28 03:17:24,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:17:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 302 transitions. [2020-11-28 03:17:24,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 03:17:24,724 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:24,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:24,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:17:24,725 INFO L429 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:24,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:24,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1802702046, now seen corresponding path program 1 times [2020-11-28 03:17:24,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:24,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138050850] [2020-11-28 03:17:24,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:24,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:24,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138050850] [2020-11-28 03:17:24,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:24,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:17:24,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394944767] [2020-11-28 03:17:24,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:17:24,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:24,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:17:24,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:17:24,861 INFO L87 Difference]: Start difference. First operand 143 states and 302 transitions. Second operand 3 states. [2020-11-28 03:17:24,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:24,902 INFO L93 Difference]: Finished difference Result 138 states and 278 transitions. [2020-11-28 03:17:24,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:17:24,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-28 03:17:24,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:24,906 INFO L225 Difference]: With dead ends: 138 [2020-11-28 03:17:24,906 INFO L226 Difference]: Without dead ends: 84 [2020-11-28 03:17:24,907 INFO L677 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 [2020-11-28 03:17:24,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-28 03:17:24,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-11-28 03:17:24,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-28 03:17:24,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 151 transitions. [2020-11-28 03:17:24,917 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 151 transitions. Word has length 8 [2020-11-28 03:17:24,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:24,918 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 151 transitions. [2020-11-28 03:17:24,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:17:24,918 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 151 transitions. [2020-11-28 03:17:24,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:17:24,919 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:24,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:24,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:17:24,920 INFO L429 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:24,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:24,921 INFO L82 PathProgramCache]: Analyzing trace with hash 762481646, now seen corresponding path program 1 times [2020-11-28 03:17:24,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:24,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849565531] [2020-11-28 03:17:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:24,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:24,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849565531] [2020-11-28 03:17:24,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:24,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:17:24,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668067914] [2020-11-28 03:17:24,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:17:24,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:24,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:17:24,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:17:24,990 INFO L87 Difference]: Start difference. First operand 84 states and 151 transitions. Second operand 3 states. [2020-11-28 03:17:25,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:25,001 INFO L93 Difference]: Finished difference Result 84 states and 145 transitions. [2020-11-28 03:17:25,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:17:25,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-28 03:17:25,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:25,003 INFO L225 Difference]: With dead ends: 84 [2020-11-28 03:17:25,004 INFO L226 Difference]: Without dead ends: 72 [2020-11-28 03:17:25,004 INFO L677 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 [2020-11-28 03:17:25,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-28 03:17:25,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-11-28 03:17:25,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:17:25,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 124 transitions. [2020-11-28 03:17:25,013 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 124 transitions. Word has length 12 [2020-11-28 03:17:25,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:25,013 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 124 transitions. [2020-11-28 03:17:25,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:17:25,013 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2020-11-28 03:17:25,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:17:25,014 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:25,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:25,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:17:25,015 INFO L429 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:25,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:25,016 INFO L82 PathProgramCache]: Analyzing trace with hash 630959256, now seen corresponding path program 1 times [2020-11-28 03:17:25,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:25,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871516815] [2020-11-28 03:17:25,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:25,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871516815] [2020-11-28 03:17:25,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:25,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:17:25,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768734602] [2020-11-28 03:17:25,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:17:25,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:25,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:17:25,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:17:25,150 INFO L87 Difference]: Start difference. First operand 72 states and 124 transitions. Second operand 4 states. [2020-11-28 03:17:25,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:25,209 INFO L93 Difference]: Finished difference Result 22 states and 35 transitions. [2020-11-28 03:17:25,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:17:25,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-28 03:17:25,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:25,210 INFO L225 Difference]: With dead ends: 22 [2020-11-28 03:17:25,210 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:17:25,211 INFO L677 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 [2020-11-28 03:17:25,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:17:25,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:17:25,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:17:25,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:17:25,212 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-28 03:17:25,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:25,212 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:17:25,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:17:25,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:17:25,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:17:25,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:17:25,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:17:25 BasicIcfg [2020-11-28 03:17:25,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:17:25,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:17:25,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:17:25,218 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:17:25,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:18" (3/4) ... [2020-11-28 03:17:25,223 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:17:25,229 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2020-11-28 03:17:25,230 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2020-11-28 03:17:25,234 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-28 03:17:25,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:17:25,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:17:25,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:17:25,280 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_56f4adcf-1dff-44c7-bf7d-3b158878c92e/bin/uautomizer/witness.graphml [2020-11-28 03:17:25,280 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:17:25,282 INFO L168 Benchmark]: Toolchain (without parser) took 8142.20 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 66.5 MB in the beginning and 77.3 MB in the end (delta: -10.8 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:25,283 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 75.5 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:25,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.85 ms. Allocated memory is still 98.6 MB. Free memory was 66.3 MB in the beginning and 57.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:25,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.21 ms. Allocated memory is still 98.6 MB. Free memory was 57.2 MB in the beginning and 55.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:25,285 INFO L168 Benchmark]: Boogie Preprocessor took 46.13 ms. Allocated memory is still 98.6 MB. Free memory was 55.6 MB in the beginning and 54.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:25,286 INFO L168 Benchmark]: RCFGBuilder took 801.27 ms. Allocated memory is still 98.6 MB. Free memory was 54.0 MB in the beginning and 73.6 MB in the end (delta: -19.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:25,287 INFO L168 Benchmark]: TraceAbstraction took 6379.97 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 73.6 MB in the beginning and 79.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:25,288 INFO L168 Benchmark]: Witness Printer took 62.99 ms. Allocated memory is still 144.7 MB. Free memory was 79.4 MB in the beginning and 77.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:25,293 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 75.5 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 775.85 ms. Allocated memory is still 98.6 MB. Free memory was 66.3 MB in the beginning and 57.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.21 ms. Allocated memory is still 98.6 MB. Free memory was 57.2 MB in the beginning and 55.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.13 ms. Allocated memory is still 98.6 MB. Free memory was 55.6 MB in the beginning and 54.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 801.27 ms. Allocated memory is still 98.6 MB. Free memory was 54.0 MB in the beginning and 73.6 MB in the end (delta: -19.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6379.97 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 73.6 MB in the beginning and 79.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. * Witness Printer took 62.99 ms. Allocated memory is still 144.7 MB. Free memory was 79.4 MB in the beginning and 77.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1123 VarBasedMoverChecksPositive, 105 VarBasedMoverChecksNegative, 65 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 204 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.0s, 96 PlacesBefore, 34 PlacesAfterwards, 98 TransitionsBefore, 33 TransitionsAfterwards, 1376 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 15 ConcurrentYvCompositions, 3 ChoiceCompositions, 94 TotalNumberOfCompositions, 4493 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: 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, 90 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 125 SDtfs, 68 SDslu, 60 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, 0.1s SatisfiabilityAnalysisTime, 0.3s 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...