./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan --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 Taipan --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 0.2.0-7b2dab5 [2020-12-09 07:06:26,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:06:26,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:06:26,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:06:26,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:06:26,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:06:26,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:06:26,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:06:26,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:06:26,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:06:26,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:06:26,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:06:26,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:06:26,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:06:26,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:06:26,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:06:26,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:06:26,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:06:26,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:06:26,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:06:26,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:06:26,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:06:26,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:06:26,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:06:26,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:06:26,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:06:26,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:06:26,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:06:26,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:06:26,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:06:26,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:06:26,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:06:26,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:06:26,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:06:26,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:06:26,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:06:26,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:06:26,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:06:26,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:06:26,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:06:26,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:06:26,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 07:06:26,201 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:06:26,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:06:26,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:06:26,202 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:06:26,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:06:26,202 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:06:26,202 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 07:06:26,202 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:06:26,203 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:06:26,203 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 07:06:26,203 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 07:06:26,203 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:06:26,203 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 07:06:26,203 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 07:06:26,203 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 07:06:26,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:06:26,204 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:06:26,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 07:06:26,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:06:26,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:06:26,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:06:26,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:06:26,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:06:26,205 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:06:26,205 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:06:26,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:06:26,205 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:06:26,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:06:26,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:06:26,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:06:26,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:06:26,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:06:26,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:06:26,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:06:26,206 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 07:06:26,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 07:06:26,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:06:26,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:06:26,206 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:06:26,206 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e2f315de443e202cbc54a2cdc7db0fe3a55a0e [2020-12-09 07:06:26,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:06:26,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:06:26,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:06:26,393 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:06:26,394 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:06:26,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2020-12-09 07:06:26,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/data/ca157fb42/9a5bb6aa59584dc58d0e37c69f698cf6/FLAG5fc23ac4d [2020-12-09 07:06:26,847 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:06:26,847 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2020-12-09 07:06:26,862 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/data/ca157fb42/9a5bb6aa59584dc58d0e37c69f698cf6/FLAG5fc23ac4d [2020-12-09 07:06:27,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/data/ca157fb42/9a5bb6aa59584dc58d0e37c69f698cf6 [2020-12-09 07:06:27,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:06:27,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:06:27,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:06:27,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:06:27,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:06:27,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:06:27" (1/1) ... [2020-12-09 07:06:27,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4ecf48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27, skipping insertion in model container [2020-12-09 07:06:27,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:06:27" (1/1) ... [2020-12-09 07:06:27,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:06:27,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:06:27,498 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30247,30260] [2020-12-09 07:06:27,502 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30452,30465] [2020-12-09 07:06:27,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:06:27,518 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:06:27,555 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30247,30260] [2020-12-09 07:06:27,557 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30452,30465] [2020-12-09 07:06:27,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:06:27,619 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:06:27,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27 WrapperNode [2020-12-09 07:06:27,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:06:27,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:06:27,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:06:27,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:06:27,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27" (1/1) ... [2020-12-09 07:06:27,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27" (1/1) ... [2020-12-09 07:06:27,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:06:27,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:06:27,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:06:27,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:06:27,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27" (1/1) ... [2020-12-09 07:06:27,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27" (1/1) ... [2020-12-09 07:06:27,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27" (1/1) ... [2020-12-09 07:06:27,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27" (1/1) ... [2020-12-09 07:06:27,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27" (1/1) ... [2020-12-09 07:06:27,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27" (1/1) ... [2020-12-09 07:06:27,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27" (1/1) ... [2020-12-09 07:06:27,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:06:27,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:06:27,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:06:27,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:06:27,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/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 [2020-12-09 07:06:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-12-09 07:06:27,735 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-12-09 07:06:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 07:06:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-12-09 07:06:27,736 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-12-09 07:06:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 07:06:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-09 07:06:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:06:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 07:06:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 07:06:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:06:27,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:06:27,738 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-09 07:06:27,975 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:06:27,975 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-09 07:06:27,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:06:27 BoogieIcfgContainer [2020-12-09 07:06:27,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:06:27,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:06:27,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:06:27,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:06:27,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:06:27" (1/3) ... [2020-12-09 07:06:27,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272a97db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:06:27, skipping insertion in model container [2020-12-09 07:06:27,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:27" (2/3) ... [2020-12-09 07:06:27,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272a97db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:06:27, skipping insertion in model container [2020-12-09 07:06:27,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:06:27" (3/3) ... [2020-12-09 07:06:27,985 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-12-09 07:06:27,997 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-09 07:06:27,997 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:06:28,000 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 07:06:28,000 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-09 07:06:28,025 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,025 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,025 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,026 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,026 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,026 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,026 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,026 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,027 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,027 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,027 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,027 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,027 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,028 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,028 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,028 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,029 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,029 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,029 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,029 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,030 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,030 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,030 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,031 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,031 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,031 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,031 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,031 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,031 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,032 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,032 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,032 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,033 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,033 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,033 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,033 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,035 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,036 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,036 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,036 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,036 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,036 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,041 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,041 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,041 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,042 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,042 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 07:06:28,048 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-12-09 07:06:28,058 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-09 07:06:28,072 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:06:28,072 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:06:28,072 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:06:28,072 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:06:28,072 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:06:28,073 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:06:28,073 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:06:28,073 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:06:28,084 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-09 07:06:28,086 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 90 transitions, 202 flow [2020-12-09 07:06:28,088 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 90 transitions, 202 flow [2020-12-09 07:06:28,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 90 transitions, 202 flow [2020-12-09 07:06:28,132 INFO L129 PetriNetUnfolder]: 6/90 cut-off events. [2020-12-09 07:06:28,132 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-12-09 07:06:28,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 90 events. 6/90 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2020-12-09 07:06:28,138 INFO L116 LiptonReduction]: Number of co-enabled transitions 976 [2020-12-09 07:06:30,559 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2020-12-09 07:06:30,691 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-12-09 07:06:30,953 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2020-12-09 07:06:31,079 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-09 07:06:31,698 WARN L197 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2020-12-09 07:06:31,978 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-12-09 07:06:32,573 WARN L197 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-12-09 07:06:32,871 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-12-09 07:06:32,876 INFO L131 LiptonReduction]: Checked pairs total: 4131 [2020-12-09 07:06:32,876 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-12-09 07:06:32,880 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 33 transitions, 88 flow [2020-12-09 07:06:32,891 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 197 states. [2020-12-09 07:06:32,892 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2020-12-09 07:06:32,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 07:06:32,896 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:06:32,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 07:06:32,896 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:06:32,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:06:32,900 INFO L82 PathProgramCache]: Analyzing trace with hash 322971694, now seen corresponding path program 1 times [2020-12-09 07:06:32,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:06:32,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706966657] [2020-12-09 07:06:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:06:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:06:33,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:06:33,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706966657] [2020-12-09 07:06:33,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:06:33,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 07:06:33,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439953911] [2020-12-09 07:06:33,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 07:06:33,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:06:33,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 07:06:33,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 07:06:33,038 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 3 states. [2020-12-09 07:06:33,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:06:33,062 INFO L93 Difference]: Finished difference Result 197 states and 434 transitions. [2020-12-09 07:06:33,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 07:06:33,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 07:06:33,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:06:33,074 INFO L225 Difference]: With dead ends: 197 [2020-12-09 07:06:33,075 INFO L226 Difference]: Without dead ends: 167 [2020-12-09 07:06:33,076 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 [2020-12-09 07:06:33,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-12-09 07:06:33,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2020-12-09 07:06:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-12-09 07:06:33,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 363 transitions. [2020-12-09 07:06:33,123 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 363 transitions. Word has length 5 [2020-12-09 07:06:33,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:06:33,123 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 363 transitions. [2020-12-09 07:06:33,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 07:06:33,123 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 363 transitions. [2020-12-09 07:06:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 07:06:33,124 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:06:33,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:06:33,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 07:06:33,124 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:06:33,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:06:33,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1117845129, now seen corresponding path program 1 times [2020-12-09 07:06:33,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:06:33,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618457237] [2020-12-09 07:06:33,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:06:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:06:33,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:06:33,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618457237] [2020-12-09 07:06:33,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:06:33,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 07:06:33,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208607596] [2020-12-09 07:06:33,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 07:06:33,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:06:33,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 07:06:33,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 07:06:33,189 INFO L87 Difference]: Start difference. First operand 167 states and 363 transitions. Second operand 3 states. [2020-12-09 07:06:33,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:06:33,208 INFO L93 Difference]: Finished difference Result 182 states and 370 transitions. [2020-12-09 07:06:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 07:06:33,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-09 07:06:33,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:06:33,210 INFO L225 Difference]: With dead ends: 182 [2020-12-09 07:06:33,210 INFO L226 Difference]: Without dead ends: 157 [2020-12-09 07:06:33,211 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 [2020-12-09 07:06:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-12-09 07:06:33,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2020-12-09 07:06:33,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-12-09 07:06:33,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 302 transitions. [2020-12-09 07:06:33,225 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 302 transitions. Word has length 7 [2020-12-09 07:06:33,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:06:33,226 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 302 transitions. [2020-12-09 07:06:33,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 07:06:33,226 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 302 transitions. [2020-12-09 07:06:33,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 07:06:33,227 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:06:33,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:06:33,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 07:06:33,227 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:06:33,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:06:33,228 INFO L82 PathProgramCache]: Analyzing trace with hash 927338362, now seen corresponding path program 1 times [2020-12-09 07:06:33,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:06:33,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295735980] [2020-12-09 07:06:33,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:06:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:06:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:06:33,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295735980] [2020-12-09 07:06:33,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:06:33,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 07:06:33,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174812109] [2020-12-09 07:06:33,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 07:06:33,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:06:33,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 07:06:33,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 07:06:33,265 INFO L87 Difference]: Start difference. First operand 143 states and 302 transitions. Second operand 3 states. [2020-12-09 07:06:33,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:06:33,279 INFO L93 Difference]: Finished difference Result 138 states and 278 transitions. [2020-12-09 07:06:33,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 07:06:33,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-09 07:06:33,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:06:33,281 INFO L225 Difference]: With dead ends: 138 [2020-12-09 07:06:33,281 INFO L226 Difference]: Without dead ends: 84 [2020-12-09 07:06:33,281 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 [2020-12-09 07:06:33,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-09 07:06:33,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-12-09 07:06:33,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-09 07:06:33,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 151 transitions. [2020-12-09 07:06:33,287 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 151 transitions. Word has length 8 [2020-12-09 07:06:33,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:06:33,288 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 151 transitions. [2020-12-09 07:06:33,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 07:06:33,288 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 151 transitions. [2020-12-09 07:06:33,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 07:06:33,289 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:06:33,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:06:33,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 07:06:33,289 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:06:33,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:06:33,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1779137458, now seen corresponding path program 1 times [2020-12-09 07:06:33,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:06:33,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665115902] [2020-12-09 07:06:33,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:06:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:06:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:06:33,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665115902] [2020-12-09 07:06:33,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:06:33,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 07:06:33,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913858227] [2020-12-09 07:06:33,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 07:06:33,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:06:33,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 07:06:33,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 07:06:33,339 INFO L87 Difference]: Start difference. First operand 84 states and 151 transitions. Second operand 4 states. [2020-12-09 07:06:33,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:06:33,369 INFO L93 Difference]: Finished difference Result 76 states and 127 transitions. [2020-12-09 07:06:33,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 07:06:33,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-09 07:06:33,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:06:33,370 INFO L225 Difference]: With dead ends: 76 [2020-12-09 07:06:33,370 INFO L226 Difference]: Without dead ends: 68 [2020-12-09 07:06:33,370 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 [2020-12-09 07:06:33,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-09 07:06:33,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-12-09 07:06:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-09 07:06:33,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 111 transitions. [2020-12-09 07:06:33,375 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 111 transitions. Word has length 12 [2020-12-09 07:06:33,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:06:33,375 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 111 transitions. [2020-12-09 07:06:33,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 07:06:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 111 transitions. [2020-12-09 07:06:33,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 07:06:33,376 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:06:33,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:06:33,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 07:06:33,376 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:06:33,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:06:33,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1863867517, now seen corresponding path program 1 times [2020-12-09 07:06:33,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:06:33,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025647078] [2020-12-09 07:06:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:06:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:06:33,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:06:33,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025647078] [2020-12-09 07:06:33,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:06:33,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 07:06:33,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635799446] [2020-12-09 07:06:33,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 07:06:33,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:06:33,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 07:06:33,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 07:06:33,411 INFO L87 Difference]: Start difference. First operand 68 states and 111 transitions. Second operand 3 states. [2020-12-09 07:06:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:06:33,416 INFO L93 Difference]: Finished difference Result 26 states and 40 transitions. [2020-12-09 07:06:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 07:06:33,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-09 07:06:33,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:06:33,417 INFO L225 Difference]: With dead ends: 26 [2020-12-09 07:06:33,417 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 07:06:33,417 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 [2020-12-09 07:06:33,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 07:06:33,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 07:06:33,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 07:06:33,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 07:06:33,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-12-09 07:06:33,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:06:33,417 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 07:06:33,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 07:06:33,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 07:06:33,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 07:06:33,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 07:06:33,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:06:33 BasicIcfg [2020-12-09 07:06:33,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:06:33,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:06:33,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:06:33,420 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:06:33,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:06:27" (3/4) ... [2020-12-09 07:06:33,423 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 07:06:33,427 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2020-12-09 07:06:33,428 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2020-12-09 07:06:33,432 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 07:06:33,432 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 07:06:33,432 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:06:33,432 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:06:33,463 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e4a8439e-3802-469f-bb6f-ae591820ce1f/bin/utaipan/witness.graphml [2020-12-09 07:06:33,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:06:33,463 INFO L168 Benchmark]: Toolchain (without parser) took 6225.46 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 70.6 MB in the beginning and 79.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:06:33,464 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 109.1 MB. Free memory is still 88.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:06:33,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.29 ms. Allocated memory is still 109.1 MB. Free memory was 70.4 MB in the beginning and 65.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:06:33,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.60 ms. Allocated memory is still 109.1 MB. Free memory was 65.9 MB in the beginning and 63.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:06:33,465 INFO L168 Benchmark]: Boogie Preprocessor took 19.19 ms. Allocated memory is still 109.1 MB. Free memory was 63.8 MB in the beginning and 62.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:06:33,465 INFO L168 Benchmark]: RCFGBuilder took 300.41 ms. Allocated memory is still 109.1 MB. Free memory was 62.4 MB in the beginning and 74.5 MB in the end (delta: -12.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2020-12-09 07:06:33,466 INFO L168 Benchmark]: TraceAbstraction took 5440.54 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 74.1 MB in the beginning and 82.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2020-12-09 07:06:33,466 INFO L168 Benchmark]: Witness Printer took 42.77 ms. Allocated memory is still 132.1 MB. Free memory was 82.7 MB in the beginning and 79.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:06:33,468 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 109.1 MB. Free memory is still 88.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 379.29 ms. Allocated memory is still 109.1 MB. Free memory was 70.4 MB in the beginning and 65.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.60 ms. Allocated memory is still 109.1 MB. Free memory was 65.9 MB in the beginning and 63.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.19 ms. Allocated memory is still 109.1 MB. Free memory was 63.8 MB in the beginning and 62.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 300.41 ms. Allocated memory is still 109.1 MB. Free memory was 62.4 MB in the beginning and 74.5 MB in the end (delta: -12.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5440.54 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 74.1 MB in the beginning and 82.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Witness Printer took 42.77 ms. Allocated memory is still 132.1 MB. Free memory was 82.7 MB in the beginning and 79.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 760 VarBasedMoverChecksPositive, 85 VarBasedMoverChecksNegative, 48 SemBasedMoverChecksPositive, 37 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 216 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.7s, 90 PlacesBefore, 34 PlacesAfterwards, 90 TransitionsBefore, 33 TransitionsAfterwards, 976 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 4131 MoverChecksTotal - PositiveResult [Line: 702]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 710]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 122 SDtfs, 74 SDslu, 73 SDs, 0 SdLazy, 32 SolverSat, 13 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, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 591 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...