/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-4b0ab11 [2022-03-04 00:19:34,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 00:19:34,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 00:19:34,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 00:19:34,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 00:19:34,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 00:19:34,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 00:19:34,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 00:19:34,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 00:19:34,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 00:19:34,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 00:19:34,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 00:19:34,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 00:19:34,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 00:19:34,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 00:19:34,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 00:19:34,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 00:19:34,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 00:19:34,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 00:19:34,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 00:19:34,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 00:19:34,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 00:19:34,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 00:19:34,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 00:19:34,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 00:19:34,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 00:19:34,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 00:19:34,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 00:19:34,794 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 [2022-03-04 00:19:34,824 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 00:19:34,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 00:19:34,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 00:19:34,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 00:19:34,825 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 00:19:34,826 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 00:19:34,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 00:19:34,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 00:19:34,826 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 00:19:34,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 00:19:34,827 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 00:19:34,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 00:19:34,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 00:19:34,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 00:19:34,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 00:19:34,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 00:19:34,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 00:19:34,828 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 00:19:34,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 00:19:34,828 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 00:19:34,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 00:19:34,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 00:19:34,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 00:19:34,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 00:19:34,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 00:19:34,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:19:34,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 00:19:34,829 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 00:19:34,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 00:19:34,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 00:19:34,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 00:19:34,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 00:19:34,829 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 00:19:34,829 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 00:19:34,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 00:19:34,829 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 00:19:34,829 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 00:19:34,829 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 00:19:34,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 00:19:35,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 00:19:35,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 00:19:35,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 00:19:35,112 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-04 00:19:35,113 INFO L275 PluginConnector]: CDTParser initialized [2022-03-04 00:19:35,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2022-03-04 00:19:35,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c39e2df8/ab8306217bb84536809e9b2211192209/FLAGe6f5bcf24 [2022-03-04 00:19:35,642 INFO L306 CDTParser]: Found 1 translation units. [2022-03-04 00:19:35,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2022-03-04 00:19:35,643 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-04 00:19:35,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c39e2df8/ab8306217bb84536809e9b2211192209/FLAGe6f5bcf24 [2022-03-04 00:19:35,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c39e2df8/ab8306217bb84536809e9b2211192209 [2022-03-04 00:19:35,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 00:19:35,703 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-04 00:19:35,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-04 00:19:35,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-04 00:19:35,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-04 00:19:35,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b21be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35, skipping insertion in model container [2022-03-04 00:19:35,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-04 00:19:35,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-04 00:19:35,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 00:19:35,914 INFO L203 MainTranslator]: Completed pre-run [2022-03-04 00:19:35,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 00:19:35,932 INFO L208 MainTranslator]: Completed translation [2022-03-04 00:19:35,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35 WrapperNode [2022-03-04 00:19:35,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-04 00:19:35,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 00:19:35,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 00:19:35,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 00:19:35,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,959 INFO L137 Inliner]: procedures = 10, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-03-04 00:19:35,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 00:19:35,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 00:19:35,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 00:19:35,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 00:19:35,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 00:19:35,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 00:19:35,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 00:19:35,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 00:19:35,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35" (1/1) ... [2022-03-04 00:19:35,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:19:36,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:19:36,054 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) [2022-03-04 00:19:36,126 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 [2022-03-04 00:19:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-04 00:19:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-04 00:19:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-04 00:19:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-03-04 00:19:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-03-04 00:19:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 00:19:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 00:19:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-04 00:19:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-04 00:19:36,165 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 00:19:36,228 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 00:19:36,230 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 00:19:36,348 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 00:19:36,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 00:19:36,363 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 00:19:36,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:19:36 BoogieIcfgContainer [2022-03-04 00:19:36,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 00:19:36,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 00:19:36,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 00:19:36,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 00:19:36,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 12:19:35" (1/3) ... [2022-03-04 00:19:36,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1245f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:19:36, skipping insertion in model container [2022-03-04 00:19:36,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:19:35" (2/3) ... [2022-03-04 00:19:36,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1245f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:19:36, skipping insertion in model container [2022-03-04 00:19:36,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:19:36" (3/3) ... [2022-03-04 00:19:36,390 INFO L111 eAbstractionObserver]: Analyzing ICFG 14b-subsequent-blocks.c [2022-03-04 00:19:36,404 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 00:19:36,405 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 00:19:36,405 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 00:19:36,405 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 00:19:36,449 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,450 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,450 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,450 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,450 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,451 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,451 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,451 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,451 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,451 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,452 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,452 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,455 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,455 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,455 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,455 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:19:36,456 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-04 00:19:36,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 00:19:36,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:19:36,550 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) [2022-03-04 00:19:36,551 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 [2022-03-04 00:19:36,580 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 00:19:36,588 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 [2022-03-04 00:19:36,589 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-04 00:19:36,638 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 24 transitions and produced 25 states. [2022-03-04 00:19:36,640 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 00:19:36,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:19:36,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1133540566, now seen corresponding path program 1 times [2022-03-04 00:19:36,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:19:36,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257163401] [2022-03-04 00:19:36,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:19:36,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:19:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:19:36,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:19:36,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:19:36,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257163401] [2022-03-04 00:19:36,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257163401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:19:36,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:19:36,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 00:19:36,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767513763] [2022-03-04 00:19:36,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:19:36,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-04 00:19:36,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:19:36,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-04 00:19:36,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-04 00:19:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:19:36,880 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:19:36,881 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) [2022-03-04 00:19:36,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:19:36,918 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 28 transitions and produced 28 states. [2022-03-04 00:19:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 00:19:36,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 00:19:36,919 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 00:19:36,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:19:36,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1589196619, now seen corresponding path program 1 times [2022-03-04 00:19:36,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:19:36,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678039562] [2022-03-04 00:19:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:19:36,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:19:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:19:36,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:19:36,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:19:36,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678039562] [2022-03-04 00:19:36,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678039562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:19:36,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:19:36,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-04 00:19:36,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75249876] [2022-03-04 00:19:36,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:19:37,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 00:19:37,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:19:37,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 00:19:37,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 00:19:37,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:19:37,001 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:19:37,001 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) [2022-03-04 00:19:37,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-04 00:19:37,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:19:37,016 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 37 transitions and produced 34 states. [2022-03-04 00:19:37,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 00:19:37,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:19:37,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-04 00:19:37,018 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 00:19:37,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:19:37,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1588838569, now seen corresponding path program 2 times [2022-03-04 00:19:37,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:19:37,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136477596] [2022-03-04 00:19:37,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:19:37,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:19:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 00:19:37,032 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-04 00:19:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 00:19:37,054 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-04 00:19:37,055 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-04 00:19:37,056 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-03-04 00:19:37,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-04 00:19:37,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-04 00:19:37,064 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-03-04 00:19:37,068 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 00:19:37,068 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 00:19:37,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:19:37 BasicIcfg [2022-03-04 00:19:37,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 00:19:37,088 INFO L158 Benchmark]: Toolchain (without parser) took 1384.94ms. Allocated memory was 190.8MB in the beginning and 269.5MB in the end (delta: 78.6MB). Free memory was 135.7MB in the beginning and 196.0MB in the end (delta: -60.3MB). Peak memory consumption was 18.8MB. Max. memory is 8.0GB. [2022-03-04 00:19:37,088 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 190.8MB. Free memory was 154.3MB in the beginning and 154.3MB in the end (delta: 65.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 00:19:37,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.07ms. Allocated memory was 190.8MB in the beginning and 269.5MB in the end (delta: 78.6MB). Free memory was 135.5MB in the beginning and 241.5MB in the end (delta: -106.0MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB. [2022-03-04 00:19:37,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.24ms. Allocated memory is still 269.5MB. Free memory was 241.5MB in the beginning and 240.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 00:19:37,089 INFO L158 Benchmark]: Boogie Preprocessor took 23.16ms. Allocated memory is still 269.5MB. Free memory was 240.0MB in the beginning and 238.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 00:19:37,089 INFO L158 Benchmark]: RCFGBuilder took 396.09ms. Allocated memory is still 269.5MB. Free memory was 238.9MB in the beginning and 228.9MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 00:19:37,090 INFO L158 Benchmark]: TraceAbstraction took 703.37ms. Allocated memory is still 269.5MB. Free memory was 228.5MB in the beginning and 196.0MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-03-04 00:19:37,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 190.8MB. Free memory was 154.3MB in the beginning and 154.3MB in the end (delta: 65.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 228.07ms. Allocated memory was 190.8MB in the beginning and 269.5MB in the end (delta: 78.6MB). Free memory was 135.5MB in the beginning and 241.5MB in the end (delta: -106.0MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.24ms. Allocated memory is still 269.5MB. Free memory was 241.5MB in the beginning and 240.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.16ms. Allocated memory is still 269.5MB. Free memory was 240.0MB in the beginning and 238.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 396.09ms. Allocated memory is still 269.5MB. Free memory was 238.9MB in the beginning and 228.9MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 703.37ms. Allocated memory is still 269.5MB. Free memory was 228.5MB in the beginning and 196.0MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. 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, 0.1s 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! [2022-03-04 00:19:37,124 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 [2022-03-04 00:19:37,354 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...