/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:01:39,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:01:39,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:01:39,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:01:39,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:01:39,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:01:39,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:01:39,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:01:39,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:01:39,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:01:39,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:01:39,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:01:39,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:01:39,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:01:39,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:01:39,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:01:39,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:01:39,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:01:39,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:01:39,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:01:39,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:01:39,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:01:39,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:01:39,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:01:39,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 19:01:39,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 19:01:39,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 19:01:39,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 19:01:39,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 19:01:39,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 19:01:39,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 19:01:39,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 19:01:39,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 19:01:39,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 19:01:39,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 19:01:39,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 19:01:39,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 19:01:39,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 19:01:39,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:01:39,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:01:39,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:01:39,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-27 19:01:39,869 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:01:39,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:01:39,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:01:39,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:01:39,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:01:39,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:01:39,872 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:01:39,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:01:39,872 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:01:39,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:01:39,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:01:39,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:01:39,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:01:39,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:01:39,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:01:39,874 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:01:39,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:01:39,874 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:01:39,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:01:39,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:01:39,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:01:39,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:01:39,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:01:39,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:01:39,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:01:39,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:01:39,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:01:39,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:01:39,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:01:39,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:01:39,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:01:39,877 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:01:40,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:01:40,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:01:40,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:01:40,098 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:01:40,098 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:01:40,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-01-27 19:01:41,158 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:01:41,388 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:01:41,388 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-01-27 19:01:41,398 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b6779e6c/7853ac7dbe6e45f7ab85e04f4a6eddf1/FLAGcdefc7f84 [2023-01-27 19:01:41,408 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b6779e6c/7853ac7dbe6e45f7ab85e04f4a6eddf1 [2023-01-27 19:01:41,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:01:41,411 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:01:41,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:01:41,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:01:41,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:01:41,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62984618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41, skipping insertion in model container [2023-01-27 19:01:41,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:01:41,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:01:41,570 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2023-01-27 19:01:41,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:01:41,692 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:01:41,704 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2023-01-27 19:01:41,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:01:41,786 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:01:41,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41 WrapperNode [2023-01-27 19:01:41,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:01:41,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:01:41,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:01:41,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:01:41,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,843 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-01-27 19:01:41,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:01:41,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:01:41,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:01:41,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:01:41,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,859 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:01:41,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:01:41,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:01:41,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:01:41,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (1/1) ... [2023-01-27 19:01:41,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:01:41,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:01:41,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-27 19:01:41,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-27 19:01:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 19:01:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:01:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:01:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:01:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:01:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:01:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:01:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:01:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:01:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:01:41,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:01:41,926 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 19:01:42,041 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:01:42,042 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:01:42,172 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:01:42,177 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:01:42,178 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 19:01:42,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:01:42 BoogieIcfgContainer [2023-01-27 19:01:42,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:01:42,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:01:42,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:01:42,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:01:42,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:01:41" (1/3) ... [2023-01-27 19:01:42,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2e76c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:01:42, skipping insertion in model container [2023-01-27 19:01:42,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:41" (2/3) ... [2023-01-27 19:01:42,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2e76c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:01:42, skipping insertion in model container [2023-01-27 19:01:42,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:01:42" (3/3) ... [2023-01-27 19:01:42,186 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2023-01-27 19:01:42,200 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:01:42,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:01:42,200 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:01:42,270 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-27 19:01:42,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-01-27 19:01:42,325 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-01-27 19:01:42,326 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 19:01:42,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 2/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-01-27 19:01:42,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-01-27 19:01:42,337 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:42,340 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:01:42,365 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:42,367 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:42,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:42,385 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-01-27 19:01:42,385 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:01:42,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-01-27 19:01:42,386 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-01-27 19:01:44,191 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-01-27 19:01:44,191 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-01-27 19:01:44,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:01:44,209 INFO L357 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=false, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3f0d778, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:01:44,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-27 19:01:44,211 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-27 19:01:44,211 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:01:44,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:01:44,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 19:01:44,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-27 19:01:44,216 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:01:44,216 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-01-27 19:01:44,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:01:44,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276093630] [2023-01-27 19:01:44,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:01:44,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:01:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:01:44,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:01:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:01:44,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:01:44,395 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:01:44,396 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-27 19:01:44,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-27 19:01:44,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-27 19:01:44,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:01:44,398 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 19:01:44,412 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:01:44,412 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:01:44,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:01:44 BasicIcfg [2023-01-27 19:01:44,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:01:44,430 INFO L158 Benchmark]: Toolchain (without parser) took 3019.31ms. Allocated memory is still 358.6MB. Free memory was 315.6MB in the beginning and 272.9MB in the end (delta: 42.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.0GB. [2023-01-27 19:01:44,431 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 213.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:01:44,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.16ms. Allocated memory is still 358.6MB. Free memory was 315.2MB in the beginning and 296.7MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 19:01:44,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.22ms. Allocated memory is still 358.6MB. Free memory was 296.7MB in the beginning and 294.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:01:44,436 INFO L158 Benchmark]: Boogie Preprocessor took 18.35ms. Allocated memory is still 358.6MB. Free memory was 294.6MB in the beginning and 293.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:01:44,437 INFO L158 Benchmark]: RCFGBuilder took 316.74ms. Allocated memory is still 358.6MB. Free memory was 293.3MB in the beginning and 281.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 19:01:44,438 INFO L158 Benchmark]: TraceAbstraction took 2247.91ms. Allocated memory is still 358.6MB. Free memory was 280.3MB in the beginning and 272.9MB in the end (delta: 7.4MB). Peak memory consumption was 10.4MB. Max. memory is 16.0GB. [2023-01-27 19:01:44,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 213.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 376.16ms. Allocated memory is still 358.6MB. Free memory was 315.2MB in the beginning and 296.7MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.22ms. Allocated memory is still 358.6MB. Free memory was 296.7MB in the beginning and 294.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.35ms. Allocated memory is still 358.6MB. Free memory was 294.6MB in the beginning and 293.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 316.74ms. Allocated memory is still 358.6MB. Free memory was 293.3MB in the beginning and 281.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2247.91ms. Allocated memory is still 358.6MB. Free memory was 280.3MB in the beginning and 272.9MB in the end (delta: 7.4MB). Peak memory consumption was 10.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 47 PlacesBefore, 9 PlacesAfterwards, 44 TransitionsBefore, 5 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 112, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: 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 3 procedures, 81 locations, 3 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: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2023-01-27 19:01:44,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...