./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1df5b5a20d50f307128a761c04a5165b8cf7856 ...................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-29 19:09:42,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:09:42,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:09:43,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:09:43,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:09:43,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:09:43,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:09:43,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:09:43,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:09:43,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:09:43,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:09:43,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:09:43,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:09:43,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:09:43,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:09:43,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:09:43,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:09:43,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:09:43,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:09:43,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:09:43,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:09:43,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:09:43,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:09:43,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:09:43,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:09:43,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:09:43,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:09:43,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:09:43,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:09:43,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:09:43,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:09:43,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:09:43,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:09:43,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:09:43,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:09:43,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:09:43,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:09:43,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:09:43,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:09:43,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:09:43,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:09:43,114 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:09:43,146 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:09:43,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:09:43,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:09:43,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:09:43,148 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:09:43,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:09:43,149 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:09:43,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:09:43,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:09:43,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:09:43,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:09:43,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:09:43,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:09:43,150 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:09:43,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:09:43,151 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:09:43,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:09:43,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:09:43,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:09:43,152 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:09:43,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:09:43,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:09:43,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:09:43,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:09:43,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:09:43,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:09:43,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:09:43,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:09:43,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:09:43,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1df5b5a20d50f307128a761c04a5165b8cf7856 [2020-11-29 19:09:43,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:09:43,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:09:43,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:09:43,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:09:43,406 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:09:43,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2020-11-29 19:09:43,480 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/data/b7e5decde/35928270400b417980575ab9545d4482/FLAG6dbdcb35e [2020-11-29 19:09:43,987 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:09:43,988 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2020-11-29 19:09:44,005 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/data/b7e5decde/35928270400b417980575ab9545d4482/FLAG6dbdcb35e [2020-11-29 19:09:44,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/data/b7e5decde/35928270400b417980575ab9545d4482 [2020-11-29 19:09:44,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:09:44,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:09:44,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:09:44,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:09:44,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:09:44,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:44" (1/1) ... [2020-11-29 19:09:44,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ade34a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:44, skipping insertion in model container [2020-11-29 19:09:44,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:44" (1/1) ... [2020-11-29 19:09:44,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:09:44,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:09:44,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:09:44,864 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:09:44,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:09:45,045 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:09:45,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45 WrapperNode [2020-11-29 19:09:45,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:09:45,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:09:45,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:09:45,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:09:45,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45" (1/1) ... [2020-11-29 19:09:45,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45" (1/1) ... [2020-11-29 19:09:45,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:09:45,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:09:45,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:09:45,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:09:45,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45" (1/1) ... [2020-11-29 19:09:45,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45" (1/1) ... [2020-11-29 19:09:45,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45" (1/1) ... [2020-11-29 19:09:45,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45" (1/1) ... [2020-11-29 19:09:45,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45" (1/1) ... [2020-11-29 19:09:45,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45" (1/1) ... [2020-11-29 19:09:45,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45" (1/1) ... [2020-11-29 19:09:45,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:09:45,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:09:45,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:09:45,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:09:45,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:09:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:09:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:09:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-29 19:09:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:09:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-11-29 19:09:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-11-29 19:09:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:09:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:09:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:09:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:09:45,311 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-29 19:09:45,844 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:09:45,845 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 19:09:45,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:45 BoogieIcfgContainer [2020-11-29 19:09:45,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:09:45,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:09:45,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:09:45,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:09:45,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:09:44" (1/3) ... [2020-11-29 19:09:45,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6494b56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:09:45, skipping insertion in model container [2020-11-29 19:09:45,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:45" (2/3) ... [2020-11-29 19:09:45,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6494b56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:09:45, skipping insertion in model container [2020-11-29 19:09:45,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:45" (3/3) ... [2020-11-29 19:09:45,858 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2020-11-29 19:09:45,869 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-29 19:09:45,870 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:09:45,875 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:09:45,875 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-29 19:09:45,900 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,900 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,900 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,900 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,900 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,901 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,901 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,901 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,901 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,901 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,903 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,903 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,904 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,904 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,904 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,904 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,904 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,904 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,905 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,906 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,908 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,909 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,909 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,909 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,909 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,910 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,911 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,911 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 19:09:45,921 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-29 19:09:45,933 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 19:09:45,957 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:09:45,957 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:09:45,957 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:09:45,957 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:09:45,957 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:09:45,958 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:09:45,958 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:09:45,958 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:09:45,976 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-29 19:09:45,979 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 100 transitions, 208 flow [2020-11-29 19:09:45,983 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 100 transitions, 208 flow [2020-11-29 19:09:45,985 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 94 places, 100 transitions, 208 flow [2020-11-29 19:09:46,061 INFO L129 PetriNetUnfolder]: 10/99 cut-off events. [2020-11-29 19:09:46,061 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-11-29 19:09:46,069 INFO L80 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 99 events. 10/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 158 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2020-11-29 19:09:46,076 INFO L116 LiptonReduction]: Number of co-enabled transitions 1650 [2020-11-29 19:09:49,279 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-11-29 19:09:49,475 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-11-29 19:09:50,443 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 144 [2020-11-29 19:09:50,798 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-11-29 19:09:50,809 INFO L131 LiptonReduction]: Checked pairs total: 2937 [2020-11-29 19:09:50,809 INFO L133 LiptonReduction]: Total number of compositions: 90 [2020-11-29 19:09:50,814 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 30 transitions, 68 flow [2020-11-29 19:09:50,825 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 84 states. [2020-11-29 19:09:50,827 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-11-29 19:09:50,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 19:09:50,832 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:50,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 19:09:50,833 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:50,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:50,838 INFO L82 PathProgramCache]: Analyzing trace with hash 372300529, now seen corresponding path program 1 times [2020-11-29 19:09:50,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:50,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744736045] [2020-11-29 19:09:50,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:51,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:51,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744736045] [2020-11-29 19:09:51,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:51,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 19:09:51,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665519443] [2020-11-29 19:09:51,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:09:51,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:51,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:09:51,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:09:51,099 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2020-11-29 19:09:51,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:51,151 INFO L93 Difference]: Finished difference Result 105 states and 178 transitions. [2020-11-29 19:09:51,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:09:51,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-29 19:09:51,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:51,162 INFO L225 Difference]: With dead ends: 105 [2020-11-29 19:09:51,162 INFO L226 Difference]: Without dead ends: 38 [2020-11-29 19:09:51,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:09:51,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-29 19:09:51,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-29 19:09:51,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-29 19:09:51,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2020-11-29 19:09:51,193 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2020-11-29 19:09:51,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:51,194 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2020-11-29 19:09:51,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:09:51,194 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-11-29 19:09:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:09:51,194 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:51,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:51,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:09:51,195 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:51,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:51,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1953090615, now seen corresponding path program 1 times [2020-11-29 19:09:51,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:51,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725526630] [2020-11-29 19:09:51,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:51,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:51,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725526630] [2020-11-29 19:09:51,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:51,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:09:51,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301546469] [2020-11-29 19:09:51,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:09:51,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:51,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:09:51,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:09:51,382 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand 5 states. [2020-11-29 19:09:51,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:51,432 INFO L93 Difference]: Finished difference Result 31 states and 43 transitions. [2020-11-29 19:09:51,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:09:51,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-29 19:09:51,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:51,434 INFO L225 Difference]: With dead ends: 31 [2020-11-29 19:09:51,434 INFO L226 Difference]: Without dead ends: 28 [2020-11-29 19:09:51,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:09:51,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-29 19:09:51,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-29 19:09:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-29 19:09:51,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2020-11-29 19:09:51,440 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 9 [2020-11-29 19:09:51,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:51,440 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2020-11-29 19:09:51,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:09:51,440 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2020-11-29 19:09:51,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:09:51,441 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:51,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:51,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:09:51,442 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:51,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:51,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1555777892, now seen corresponding path program 1 times [2020-11-29 19:09:51,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:51,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152593843] [2020-11-29 19:09:51,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:51,478 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:51,543 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:51,567 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:09:51,567 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:09:51,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:09:51,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:09:51 BasicIcfg [2020-11-29 19:09:51,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:09:51,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:09:51,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:09:51,599 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:09:51,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:45" (3/4) ... [2020-11-29 19:09:51,601 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:09:51,643 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0534048c-eeba-40e2-9755-c9490e7b708a/bin/uautomizer/witness.graphml [2020-11-29 19:09:51,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:09:51,645 INFO L168 Benchmark]: Toolchain (without parser) took 7334.63 ms. Allocated memory was 104.9 MB in the beginning and 155.2 MB in the end (delta: 50.3 MB). Free memory was 74.3 MB in the beginning and 108.6 MB in the end (delta: -34.3 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:51,646 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 41.8 MB in the beginning and 41.7 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:09:51,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.06 ms. Allocated memory is still 104.9 MB. Free memory was 73.8 MB in the beginning and 62.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:51,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.18 ms. Allocated memory is still 104.9 MB. Free memory was 62.4 MB in the beginning and 60.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:51,648 INFO L168 Benchmark]: Boogie Preprocessor took 68.49 ms. Allocated memory is still 104.9 MB. Free memory was 60.3 MB in the beginning and 58.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:51,648 INFO L168 Benchmark]: RCFGBuilder took 644.65 ms. Allocated memory is still 104.9 MB. Free memory was 58.6 MB in the beginning and 79.2 MB in the end (delta: -20.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:51,649 INFO L168 Benchmark]: TraceAbstraction took 5749.79 ms. Allocated memory was 104.9 MB in the beginning and 155.2 MB in the end (delta: 50.3 MB). Free memory was 78.4 MB in the beginning and 110.8 MB in the end (delta: -32.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:51,650 INFO L168 Benchmark]: Witness Printer took 45.33 ms. Allocated memory is still 155.2 MB. Free memory was 110.8 MB in the beginning and 108.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:51,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 41.8 MB in the beginning and 41.7 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 731.06 ms. Allocated memory is still 104.9 MB. Free memory was 73.8 MB in the beginning and 62.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.18 ms. Allocated memory is still 104.9 MB. Free memory was 62.4 MB in the beginning and 60.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.49 ms. Allocated memory is still 104.9 MB. Free memory was 60.3 MB in the beginning and 58.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 644.65 ms. Allocated memory is still 104.9 MB. Free memory was 58.6 MB in the beginning and 79.2 MB in the end (delta: -20.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5749.79 ms. Allocated memory was 104.9 MB in the beginning and 155.2 MB in the end (delta: 50.3 MB). Free memory was 78.4 MB in the beginning and 110.8 MB in the end (delta: -32.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * Witness Printer took 45.33 ms. Allocated memory is still 155.2 MB. Free memory was 110.8 MB in the beginning and 108.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1080 VarBasedMoverChecksPositive, 99 VarBasedMoverChecksNegative, 56 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.8s, 94 PlacesBefore, 25 PlacesAfterwards, 100 TransitionsBefore, 30 TransitionsAfterwards, 1650 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 90 TotalNumberOfCompositions, 2937 MoverChecksTotal - CounterExampleResult [Line: 683]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L689] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L690] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L691] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L700] 0 pthread_t id; [L701] 0 int i = 0; [L702] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [__global_lock={6:0}, arg={10:0}, mutex1={11:0}, mutex2={9:0}] [L693] 1 int *p = (int *) arg; [L695] EXPR 1 \read(*p) [L695] 1 (*p)++ [L704] 0 \read(i) [L684] COND TRUE 0 !(cond) [L683] COND FALSE 0 !(0) [L683] 0 __assert_fail ("0", "racemacros.h", 9, __extension__ __PRETTY_FUNCTION__) VAL [__global_lock={6:0}, arg={10:0}, arg={10:0}, mutex1={11:0}, mutex2={9:0}, p={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 27 SDtfs, 25 SDslu, 12 SDs, 0 SdLazy, 38 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 432 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! Received shutdown request...