./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg --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 68ff1b9e45ceca62e6f0d7da6cf407402701c9d10c00527ec7ee046c2d72003c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:42:38,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:42:38,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:42:38,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:42:38,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:42:38,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:42:38,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:42:38,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:42:38,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:42:38,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:42:38,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:42:38,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:42:38,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:42:38,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:42:38,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:42:38,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:42:38,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:42:38,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:42:38,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:42:38,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:42:38,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:42:38,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:42:38,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:42:38,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:42:38,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:42:38,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:42:38,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:42:38,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:42:38,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:42:38,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:42:38,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:42:38,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:42:38,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:42:38,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:42:38,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:42:38,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:42:38,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:42:38,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:42:38,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:42:38,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:42:38,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:42:38,822 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:42:38,873 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:42:38,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:42:38,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:42:38,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:42:38,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:42:38,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:42:38,886 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:42:38,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:42:38,887 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:42:38,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:42:38,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:42:38,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:42:38,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:42:38,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:42:38,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:42:38,890 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:42:38,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:42:38,890 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:42:38,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:42:38,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:42:38,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:42:38,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:42:38,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:42:38,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:42:38,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:42:38,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:42:38,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:42:38,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:42:38,893 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:42:38,894 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:42:38,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:42:38,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:42:38,895 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_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68ff1b9e45ceca62e6f0d7da6cf407402701c9d10c00527ec7ee046c2d72003c [2021-10-28 08:42:39,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:42:39,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:42:39,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:42:39,234 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:42:39,235 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:42:39,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2021-10-28 08:42:39,318 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/data/99ccfbdb3/05f6644567f9494396112c02834d9347/FLAG736b4bd52 [2021-10-28 08:42:39,958 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:42:39,959 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2021-10-28 08:42:39,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/data/99ccfbdb3/05f6644567f9494396112c02834d9347/FLAG736b4bd52 [2021-10-28 08:42:40,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/data/99ccfbdb3/05f6644567f9494396112c02834d9347 [2021-10-28 08:42:40,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:42:40,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:42:40,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:42:40,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:42:40,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:42:40,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:42:40" (1/1) ... [2021-10-28 08:42:40,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4f9985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:40, skipping insertion in model container [2021-10-28 08:42:40,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:42:40" (1/1) ... [2021-10-28 08:42:40,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:42:40,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:42:40,510 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[841,854] [2021-10-28 08:42:40,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:42:40,938 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:42:40,949 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[841,854] [2021-10-28 08:42:40,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:42:41,088 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:42:41,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41 WrapperNode [2021-10-28 08:42:41,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:42:41,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:42:41,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:42:41,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:42:41,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41" (1/1) ... [2021-10-28 08:42:41,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41" (1/1) ... [2021-10-28 08:42:41,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:42:41,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:42:41,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:42:41,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:42:41,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41" (1/1) ... [2021-10-28 08:42:41,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41" (1/1) ... [2021-10-28 08:42:41,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41" (1/1) ... [2021-10-28 08:42:41,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41" (1/1) ... [2021-10-28 08:42:41,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41" (1/1) ... [2021-10-28 08:42:41,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41" (1/1) ... [2021-10-28 08:42:41,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41" (1/1) ... [2021-10-28 08:42:41,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:42:41,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:42:41,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:42:41,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:42:41,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41" (1/1) ... [2021-10-28 08:42:41,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:42:41,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:41,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:41,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:42:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2021-10-28 08:42:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2021-10-28 08:42:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2021-10-28 08:42:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2021-10-28 08:42:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2021-10-28 08:42:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:42:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:42:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:42:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:42:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-28 08:42:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:42:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:42:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:42:41,372 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 08:42:41,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:42:41,874 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 08:42:41,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:42:41 BoogieIcfgContainer [2021-10-28 08:42:41,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:42:41,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:42:41,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:42:41,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:42:41,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:42:40" (1/3) ... [2021-10-28 08:42:41,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ffd745f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:42:41, skipping insertion in model container [2021-10-28 08:42:41,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:41" (2/3) ... [2021-10-28 08:42:41,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ffd745f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:42:41, skipping insertion in model container [2021-10-28 08:42:41,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:42:41" (3/3) ... [2021-10-28 08:42:41,888 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2021-10-28 08:42:41,893 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 08:42:41,894 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:42:41,894 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:42:41,894 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 08:42:41,931 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,931 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,931 WARN L313 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,932 WARN L313 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,932 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,932 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,932 WARN L313 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,933 WARN L313 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,933 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,933 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,934 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,934 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,934 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,935 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,935 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,935 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,935 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,936 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,936 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,936 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,937 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,937 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,938 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,938 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,938 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,938 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,938 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,939 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,939 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,939 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,939 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,940 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,947 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,947 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,948 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,948 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,949 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,949 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,949 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,951 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,952 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,952 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,952 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,952 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,953 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,953 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,959 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,960 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,960 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,960 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,965 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,970 WARN L313 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,970 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,971 WARN L313 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,971 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,971 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,971 WARN L313 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,989 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,989 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,990 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,990 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,990 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,991 WARN L313 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:41,991 WARN L313 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:42:42,004 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-28 08:42:42,065 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:42:42,073 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:42:42,074 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 08:42:42,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 87 transitions, 190 flow [2021-10-28 08:42:42,147 INFO L129 PetriNetUnfolder]: 1/85 cut-off events. [2021-10-28 08:42:42,148 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-28 08:42:42,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 85 events. 1/85 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2021-10-28 08:42:42,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 87 transitions, 190 flow [2021-10-28 08:42:42,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 69 transitions, 147 flow [2021-10-28 08:42:42,189 INFO L129 PetriNetUnfolder]: 0/65 cut-off events. [2021-10-28 08:42:42,194 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-28 08:42:42,195 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:42:42,196 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:42:42,196 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:42:42,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:42,206 INFO L85 PathProgramCache]: Analyzing trace with hash -294637646, now seen corresponding path program 1 times [2021-10-28 08:42:42,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:42,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562933398] [2021-10-28 08:42:42,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:42,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:43,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:42:43,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:42:43,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562933398] [2021-10-28 08:42:43,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562933398] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:42:43,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:42:43,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:42:43,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773302046] [2021-10-28 08:42:43,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:42:43,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:42:43,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:42:43,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:42:43,080 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 87 [2021-10-28 08:42:43,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 147 flow. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:43,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:42:43,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 87 [2021-10-28 08:42:43,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:42:43,284 INFO L129 PetriNetUnfolder]: 10/135 cut-off events. [2021-10-28 08:42:43,289 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-10-28 08:42:43,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 135 events. 10/135 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 334 event pairs, 0 based on Foata normal form. 3/138 useless extension candidates. Maximal degree in co-relation 123. Up to 12 conditions per place. [2021-10-28 08:42:43,294 INFO L132 encePairwiseOnDemand]: 81/87 looper letters, 9 selfloop transitions, 3 changer transitions 9/82 dead transitions. [2021-10-28 08:42:43,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 82 transitions, 218 flow [2021-10-28 08:42:43,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:42:43,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 08:42:43,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 548 transitions. [2021-10-28 08:42:43,323 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8998357963875205 [2021-10-28 08:42:43,324 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 548 transitions. [2021-10-28 08:42:43,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 548 transitions. [2021-10-28 08:42:43,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:42:43,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 548 transitions. [2021-10-28 08:42:43,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:43,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:43,355 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:43,358 INFO L186 Difference]: Start difference. First operand has 76 places, 69 transitions, 147 flow. Second operand 7 states and 548 transitions. [2021-10-28 08:42:43,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 82 transitions, 218 flow [2021-10-28 08:42:43,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 82 transitions, 212 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 08:42:43,376 INFO L242 Difference]: Finished difference. Result has 84 places, 69 transitions, 161 flow [2021-10-28 08:42:43,379 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=161, PETRI_PLACES=84, PETRI_TRANSITIONS=69} [2021-10-28 08:42:43,380 INFO L334 CegarLoopForPetriNet]: 76 programPoint places, 8 predicate places. [2021-10-28 08:42:43,380 INFO L470 AbstractCegarLoop]: Abstraction has has 84 places, 69 transitions, 161 flow [2021-10-28 08:42:43,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:43,381 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:42:43,381 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:42:43,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:42:43,382 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:42:43,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:43,383 INFO L85 PathProgramCache]: Analyzing trace with hash -2057057164, now seen corresponding path program 1 times [2021-10-28 08:42:43,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:43,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412417438] [2021-10-28 08:42:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:43,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:42:43,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:42:43,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412417438] [2021-10-28 08:42:43,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412417438] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:42:43,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:42:43,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 08:42:43,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529205044] [2021-10-28 08:42:43,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:42:43,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:42:43,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:42:43,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:42:43,614 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 87 [2021-10-28 08:42:43,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 69 transitions, 161 flow. Second operand has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:43,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:42:43,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 87 [2021-10-28 08:42:43,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:42:43,827 INFO L129 PetriNetUnfolder]: 6/98 cut-off events. [2021-10-28 08:42:43,832 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-10-28 08:42:43,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 98 events. 6/98 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 180 event pairs, 0 based on Foata normal form. 10/108 useless extension candidates. Maximal degree in co-relation 153. Up to 8 conditions per place. [2021-10-28 08:42:43,835 INFO L132 encePairwiseOnDemand]: 79/87 looper letters, 14 selfloop transitions, 5 changer transitions 14/76 dead transitions. [2021-10-28 08:42:43,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 76 transitions, 237 flow [2021-10-28 08:42:43,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:42:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 08:42:43,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 472 transitions. [2021-10-28 08:42:43,840 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7750410509031199 [2021-10-28 08:42:43,841 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 472 transitions. [2021-10-28 08:42:43,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 472 transitions. [2021-10-28 08:42:43,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:42:43,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 472 transitions. [2021-10-28 08:42:43,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:43,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:43,849 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:43,850 INFO L186 Difference]: Start difference. First operand has 84 places, 69 transitions, 161 flow. Second operand 7 states and 472 transitions. [2021-10-28 08:42:43,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 76 transitions, 237 flow [2021-10-28 08:42:43,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 76 transitions, 223 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-10-28 08:42:43,856 INFO L242 Difference]: Finished difference. Result has 80 places, 59 transitions, 135 flow [2021-10-28 08:42:43,856 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=135, PETRI_PLACES=80, PETRI_TRANSITIONS=59} [2021-10-28 08:42:43,857 INFO L334 CegarLoopForPetriNet]: 76 programPoint places, 4 predicate places. [2021-10-28 08:42:43,858 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 59 transitions, 135 flow [2021-10-28 08:42:43,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:43,859 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:42:43,859 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:42:43,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:42:43,860 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:42:43,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:43,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1562962169, now seen corresponding path program 1 times [2021-10-28 08:42:43,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:43,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253915432] [2021-10-28 08:42:43,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:43,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:43,975 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:44,101 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:44,102 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:42:44,104 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:42:44,108 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 08:42:44,109 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 08:42:44,109 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:42:44,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:42:44,120 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 08:42:44,127 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 08:42:44,127 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:42:44,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:42:44 BasicIcfg [2021-10-28 08:42:44,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:42:44,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:42:44,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:42:44,236 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:42:44,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:42:41" (3/4) ... [2021-10-28 08:42:44,239 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 08:42:44,353 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:42:44,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:42:44,356 INFO L168 Benchmark]: Toolchain (without parser) took 4169.14 ms. Allocated memory was 83.9 MB in the beginning and 127.9 MB in the end (delta: 44.0 MB). Free memory was 45.2 MB in the beginning and 73.6 MB in the end (delta: -28.4 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:44,357 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory is still 63.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:44,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 902.08 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 45.0 MB in the beginning and 48.1 MB in the end (delta: -3.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:44,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.53 ms. Allocated memory is still 100.7 MB. Free memory was 48.1 MB in the beginning and 45.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:44,359 INFO L168 Benchmark]: Boogie Preprocessor took 51.73 ms. Allocated memory is still 100.7 MB. Free memory was 45.2 MB in the beginning and 43.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:44,360 INFO L168 Benchmark]: RCFGBuilder took 671.87 ms. Allocated memory is still 100.7 MB. Free memory was 43.1 MB in the beginning and 62.0 MB in the end (delta: -18.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:44,361 INFO L168 Benchmark]: TraceAbstraction took 2355.80 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 61.4 MB in the beginning and 82.0 MB in the end (delta: -20.5 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:44,361 INFO L168 Benchmark]: Witness Printer took 118.34 ms. Allocated memory is still 127.9 MB. Free memory was 82.0 MB in the beginning and 73.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:44,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory is still 63.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 902.08 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 45.0 MB in the beginning and 48.1 MB in the end (delta: -3.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.53 ms. Allocated memory is still 100.7 MB. Free memory was 48.1 MB in the beginning and 45.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.73 ms. Allocated memory is still 100.7 MB. Free memory was 45.2 MB in the beginning and 43.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 671.87 ms. Allocated memory is still 100.7 MB. Free memory was 43.1 MB in the beginning and 62.0 MB in the end (delta: -18.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2355.80 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 61.4 MB in the beginning and 82.0 MB in the end (delta: -20.5 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Witness Printer took 118.34 ms. Allocated memory is still 127.9 MB. Free memory was 82.0 MB in the beginning and 73.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1345] 0 int g; VAL [g=0] [L1346] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [g=0, mut={9:0}] [L1347] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [cond={10:0}, g=0, mut={9:0}] [L1367] 0 pthread_t t1; VAL [cond={10:0}, g=0, mut={9:0}] [L1368] 0 pthread_t t2; VAL [cond={10:0}, g=0, mut={9:0}] [L1369] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [cond={10:0}, g=0, mut={9:0}, ptr={0:0}] [L1350] 1 g = 1 VAL [cond={10:0}, g=1, mut={9:0}, ptr={0:0}, ptr={0:0}] [L1371] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [cond={10:0}, g=1, mut={9:0}, ptr={0:0}, ptr={0:0}] [L13] COND TRUE 2 !(cond) VAL [cond={10:0}, g=1, mut={9:0}, ptr={0:0}, ptr={0:0}] [L13] 2 reach_error() VAL [cond={10:0}, g=1, mut={9:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1371]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1369]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 117 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 28 SDslu, 63 SDs, 0 SdLazy, 71 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=1, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 274 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:42:44,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa74fd37-18f9-4d7a-80c0-c2578f576c3a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...