/usr/bin/java -Xmx8000000000 -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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 10:18:37,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 10:18:37,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 10:18:37,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 10:18:37,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 10:18:37,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 10:18:37,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 10:18:37,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 10:18:37,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 10:18:37,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 10:18:37,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 10:18:37,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 10:18:37,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 10:18:37,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 10:18:37,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 10:18:37,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 10:18:37,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 10:18:37,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 10:18:37,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 10:18:37,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 10:18:37,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 10:18:37,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 10:18:37,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 10:18:37,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 10:18:37,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-19 10:18:37,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-19 10:18:37,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-19 10:18:37,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-19 10:18:37,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-19 10:18:37,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-19 10:18:37,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-19 10:18:37,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-19 10:18:37,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-19 10:18:37,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-19 10:18:37,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-19 10:18:37,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-19 10:18:37,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-19 10:18:37,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-19 10:18:37,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 10:18:37,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 10:18:37,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 10:18:37,943 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-02-19 10:18:37,961 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 10:18:37,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 10:18:37,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 10:18:37,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 10:18:37,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 10:18:37,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 10:18:37,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 10:18:37,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 10:18:37,962 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 10:18:37,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 10:18:37,963 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 10:18:37,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 10:18:37,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 10:18:37,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 10:18:37,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 10:18:37,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 10:18:37,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 10:18:37,965 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 10:18:37,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 10:18:37,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 10:18:37,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 10:18:37,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 10:18:37,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 10:18:37,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 10:18:37,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 10:18:37,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 10:18:37,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 10:18:37,968 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 10:18:37,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 10:18:37,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 10:18:37,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 10:18:37,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 10:18:37,968 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 10:18:37,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 10:18:37,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 10:18:37,969 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 10:18:37,969 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 10:18:37,969 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 10:18:37,970 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:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 10:18:38,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 10:18:38,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 10:18:38,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 10:18:38,187 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-19 10:18:38,187 INFO L275 PluginConnector]: CDTParser initialized [2022-02-19 10:18:38,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2022-02-19 10:18:38,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb88dc041/457d63660aea4b0e813e7ede2187f3d0/FLAGf2fd78d7a [2022-02-19 10:18:38,570 INFO L306 CDTParser]: Found 1 translation units. [2022-02-19 10:18:38,570 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2022-02-19 10:18:38,570 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-19 10:18:38,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb88dc041/457d63660aea4b0e813e7ede2187f3d0/FLAGf2fd78d7a [2022-02-19 10:18:38,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb88dc041/457d63660aea4b0e813e7ede2187f3d0 [2022-02-19 10:18:38,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 10:18:38,608 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-19 10:18:38,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-19 10:18:38,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-19 10:18:38,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-19 10:18:38,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3707fd2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38, skipping insertion in model container [2022-02-19 10:18:38,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-19 10:18:38,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-19 10:18:38,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 10:18:38,759 INFO L203 MainTranslator]: Completed pre-run [2022-02-19 10:18:38,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 10:18:38,776 INFO L208 MainTranslator]: Completed translation [2022-02-19 10:18:38,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38 WrapperNode [2022-02-19 10:18:38,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-19 10:18:38,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 10:18:38,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 10:18:38,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 10:18:38,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,799 INFO L137 Inliner]: procedures = 10, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-02-19 10:18:38,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 10:18:38,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 10:18:38,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 10:18:38,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 10:18:38,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 10:18:38,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 10:18:38,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 10:18:38,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 10:18:38,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38" (1/1) ... [2022-02-19 10:18:38,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 10:18:38,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:18:38,839 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) [2022-02-19 10:18:38,843 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 [2022-02-19 10:18:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-19 10:18:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-19 10:18:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-19 10:18:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-19 10:18:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-19 10:18:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 10:18:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 10:18:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-19 10:18:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-19 10:18:38,869 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 10:18:38,913 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 10:18:38,914 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 10:18:38,982 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 10:18:39,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 10:18:39,009 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 10:18:39,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:18:39 BoogieIcfgContainer [2022-02-19 10:18:39,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 10:18:39,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 10:18:39,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 10:18:39,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 10:18:39,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 10:18:38" (1/3) ... [2022-02-19 10:18:39,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a316f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:18:39, skipping insertion in model container [2022-02-19 10:18:39,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 10:18:38" (2/3) ... [2022-02-19 10:18:39,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a316f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:18:39, skipping insertion in model container [2022-02-19 10:18:39,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:18:39" (3/3) ... [2022-02-19 10:18:39,031 INFO L111 eAbstractionObserver]: Analyzing ICFG 14b-subsequent-blocks.c [2022-02-19 10:18:39,035 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 10:18:39,035 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 10:18:39,035 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 10:18:39,035 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 10:18:39,064 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,065 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,065 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,065 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,065 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,066 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,066 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,066 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,066 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,067 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,067 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,067 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,070 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,070 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,070 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,070 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:18:39,071 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-19 10:18:39,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 10:18:39,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:18:39,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-19 10:18:39,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-19 10:18:39,147 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 10:18:39,155 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-02-19 10:18:39,155 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-19 10:18:39,214 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 24 transitions and produced 25 states. [2022-02-19 10:18:39,216 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-19 10:18:39,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:18:39,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1133540566, now seen corresponding path program 1 times [2022-02-19 10:18:39,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:18:39,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983836882] [2022-02-19 10:18:39,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:18:39,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:18:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:18:39,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:18:39,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:18:39,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983836882] [2022-02-19 10:18:39,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983836882] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 10:18:39,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 10:18:39,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 10:18:39,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646959953] [2022-02-19 10:18:39,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 10:18:39,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-19 10:18:39,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:18:39,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-19 10:18:39,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-19 10:18:39,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:18:39,476 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:18:39,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-02-19 10:18:39,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:18:39,518 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 28 transitions and produced 28 states. [2022-02-19 10:18:39,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 10:18:39,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 10:18:39,519 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-19 10:18:39,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:18:39,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1589196619, now seen corresponding path program 1 times [2022-02-19 10:18:39,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:18:39,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739168491] [2022-02-19 10:18:39,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:18:39,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:18:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:18:39,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:18:39,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:18:39,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739168491] [2022-02-19 10:18:39,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739168491] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 10:18:39,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 10:18:39,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-19 10:18:39,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534933644] [2022-02-19 10:18:39,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 10:18:39,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 10:18:39,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:18:39,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 10:18:39,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 10:18:39,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:18:39,603 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:18:39,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-02-19 10:18:39,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 10:18:39,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:18:39,639 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 37 transitions and produced 34 states. [2022-02-19 10:18:39,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 10:18:39,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 10:18:39,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-19 10:18:39,641 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-19 10:18:39,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:18:39,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1588838569, now seen corresponding path program 2 times [2022-02-19 10:18:39,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:18:39,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450940107] [2022-02-19 10:18:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:18:39,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:18:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-19 10:18:39,659 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-19 10:18:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-19 10:18:39,678 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-19 10:18:39,682 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-19 10:18:39,683 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-19 10:18:39,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-19 10:18:39,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-19 10:18:39,694 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-02-19 10:18:39,697 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 10:18:39,698 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 10:18:39,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 10:18:39 BasicIcfg [2022-02-19 10:18:39,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 10:18:39,723 INFO L158 Benchmark]: Toolchain (without parser) took 1114.76ms. Allocated memory was 213.9MB in the beginning and 305.1MB in the end (delta: 91.2MB). Free memory was 155.5MB in the beginning and 227.7MB in the end (delta: -72.2MB). Peak memory consumption was 19.0MB. Max. memory is 8.0GB. [2022-02-19 10:18:39,724 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 213.9MB. Free memory is still 173.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 10:18:39,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.81ms. Allocated memory was 213.9MB in the beginning and 305.1MB in the end (delta: 91.2MB). Free memory was 155.3MB in the beginning and 275.9MB in the end (delta: -120.6MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. [2022-02-19 10:18:39,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.85ms. Allocated memory is still 305.1MB. Free memory was 275.9MB in the beginning and 274.8MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 10:18:39,727 INFO L158 Benchmark]: Boogie Preprocessor took 15.87ms. Allocated memory is still 305.1MB. Free memory was 274.8MB in the beginning and 273.8MB in the end (delta: 945.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 10:18:39,729 INFO L158 Benchmark]: RCFGBuilder took 193.06ms. Allocated memory is still 305.1MB. Free memory was 273.8MB in the beginning and 262.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-19 10:18:39,729 INFO L158 Benchmark]: TraceAbstraction took 710.40ms. Allocated memory is still 305.1MB. Free memory was 262.3MB in the beginning and 227.7MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2022-02-19 10:18:39,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 213.9MB. Free memory is still 173.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 167.81ms. Allocated memory was 213.9MB in the beginning and 305.1MB in the end (delta: 91.2MB). Free memory was 155.3MB in the beginning and 275.9MB in the end (delta: -120.6MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.85ms. Allocated memory is still 305.1MB. Free memory was 275.9MB in the beginning and 274.8MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.87ms. Allocated memory is still 305.1MB. Free memory was 274.8MB in the beginning and 273.8MB in the end (delta: 945.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 193.06ms. Allocated memory is still 305.1MB. Free memory was 273.8MB in the beginning and 262.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 710.40ms. Allocated memory is still 305.1MB. Free memory was 262.3MB in the beginning and 227.7MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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: 35]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = -1; VAL [x=-1] [L23] 0 pthread_t threadId; VAL [threadId={2:0}, x=-1] [L24] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, pthread_create(&threadId, NULL, &foo, NULL)=-1, threadId={2:0}, x=-1] [L27] 0 x = 1 [L28] 0 x = x + 1 VAL [arg={0:0}, threadId={2:0}, x=2] [L18] 1 x = 0 VAL [arg={0:0}, arg={0:0}, x=0] [L31] 0 x = x + 1 [L32] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=2] [L35] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=2] - UnprovableResult [Line: 24]: 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, 37 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 0.1s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 44 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! [2022-02-19 10:18:39,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-19 10:18:39,978 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...