/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/ThreadIdTest1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 00:18:00,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 00:18:00,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 00:18:00,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 00:18:00,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 00:18:00,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 00:18:00,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 00:18:00,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 00:18:00,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 00:18:00,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 00:18:00,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 00:18:00,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-03-04 00:18:00,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 00:18:00,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 00:18:00,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 00:18:00,912 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 00:18:00,941 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 00:18:00,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 00:18:00,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 00:18:00,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 00:18:00,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 00:18:00,943 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 00:18:00,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 00:18:00,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 00:18:00,943 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 00:18:00,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 00:18:00,943 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 00:18:00,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 00:18:00,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 00:18:00,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 00:18:00,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 00:18:00,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 00:18:00,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 00:18:00,944 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 00:18:00,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 00:18:00,944 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 00:18:00,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 00:18:00,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 00:18:00,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 00:18:00,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 00:18:00,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 00:18:00,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:18:00,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 00:18:00,945 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 00:18:00,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 00:18:00,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 00:18:00,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 00:18:00,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 00:18:00,945 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 00:18:00,945 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 00:18:00,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 00:18:00,946 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 00:18:00,946 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 00:18:00,946 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 00:18:00,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 00:18:01,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 00:18:01,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 00:18:01,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 00:18:01,151 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-04 00:18:01,152 INFO L275 PluginConnector]: CDTParser initialized [2022-03-04 00:18:01,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2022-03-04 00:18:01,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e599f5727/78ecd2fbffe74795a8e90ebce7fd995d/FLAG73032b5a7 [2022-03-04 00:18:01,494 INFO L306 CDTParser]: Found 1 translation units. [2022-03-04 00:18:01,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2022-03-04 00:18:01,494 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-04 00:18:01,494 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-04 00:18:01,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e599f5727/78ecd2fbffe74795a8e90ebce7fd995d/FLAG73032b5a7 [2022-03-04 00:18:01,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e599f5727/78ecd2fbffe74795a8e90ebce7fd995d [2022-03-04 00:18:01,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 00:18:01,968 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-04 00:18:01,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-04 00:18:01,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-04 00:18:01,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-04 00:18:01,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:18:01" (1/1) ... [2022-03-04 00:18:01,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4732ad00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01, skipping insertion in model container [2022-03-04 00:18:01,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:18:01" (1/1) ... [2022-03-04 00:18:01,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-04 00:18:01,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-04 00:18:02,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 00:18:02,133 INFO L203 MainTranslator]: Completed pre-run [2022-03-04 00:18:02,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 00:18:02,148 INFO L208 MainTranslator]: Completed translation [2022-03-04 00:18:02,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02 WrapperNode [2022-03-04 00:18:02,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-04 00:18:02,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 00:18:02,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 00:18:02,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 00:18:02,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02" (1/1) ... [2022-03-04 00:18:02,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02" (1/1) ... [2022-03-04 00:18:02,170 INFO L137 Inliner]: procedures = 9, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2022-03-04 00:18:02,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 00:18:02,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 00:18:02,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 00:18:02,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 00:18:02,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02" (1/1) ... [2022-03-04 00:18:02,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02" (1/1) ... [2022-03-04 00:18:02,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02" (1/1) ... [2022-03-04 00:18:02,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02" (1/1) ... [2022-03-04 00:18:02,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02" (1/1) ... [2022-03-04 00:18:02,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02" (1/1) ... [2022-03-04 00:18:02,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02" (1/1) ... [2022-03-04 00:18:02,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 00:18:02,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 00:18:02,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 00:18:02,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 00:18:02,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02" (1/1) ... [2022-03-04 00:18:02,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:18:02,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:18:02,205 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 00:18:02,215 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 00:18:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-04 00:18:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2022-03-04 00:18:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2022-03-04 00:18:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 00:18:02,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 00:18:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-04 00:18:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-04 00:18:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-04 00:18:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2022-03-04 00:18:02,236 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2022-03-04 00:18:02,237 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 00:18:02,311 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 00:18:02,312 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 00:18:02,436 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 00:18:02,441 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 00:18:02,441 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 00:18:02,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:18:02 BoogieIcfgContainer [2022-03-04 00:18:02,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 00:18:02,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 00:18:02,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 00:18:02,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 00:18:02,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 12:18:01" (1/3) ... [2022-03-04 00:18:02,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f62cc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:18:02, skipping insertion in model container [2022-03-04 00:18:02,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:02" (2/3) ... [2022-03-04 00:18:02,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f62cc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:18:02, skipping insertion in model container [2022-03-04 00:18:02,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:18:02" (3/3) ... [2022-03-04 00:18:02,448 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest1.c [2022-03-04 00:18:02,453 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 00:18:02,453 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 00:18:02,453 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 00:18:02,453 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 00:18:02,475 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,475 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,475 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,475 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,476 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,476 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,476 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,476 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,476 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,477 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,477 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,477 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,477 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,478 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,478 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,478 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,478 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,478 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,479 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,479 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,479 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,479 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,479 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,480 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,480 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,480 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,480 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,480 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,481 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,481 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,481 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,481 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,482 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,482 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,482 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,482 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,485 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,485 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,485 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,485 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,486 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,488 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,488 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,488 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,489 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,489 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:18:02,492 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-04 00:18:02,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 00:18:02,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:18:02,526 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 00:18:02,527 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 00:18:02,554 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 00:18:02,578 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 00:18:02,581 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 00:18:02,644 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 58 transitions and produced 59 states. [2022-03-04 00:18:02,646 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:18:02,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:18:02,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1461857850, now seen corresponding path program 1 times [2022-03-04 00:18:02,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:18:02,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216362128] [2022-03-04 00:18:02,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:18:02,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:18:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:18:02,870 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 00:18:02,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:18:02,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216362128] [2022-03-04 00:18:02,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216362128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:18:02,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:18:02,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-04 00:18:02,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765417398] [2022-03-04 00:18:02,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:18:02,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 00:18:02,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:18:02,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 00:18:02,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 00:18:02,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:02,905 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:18:02,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 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 00:18:02,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:18:02,972 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 237 transitions and produced 166 states. [2022-03-04 00:18:02,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:18:02,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 00:18:02,974 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:18:02,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:18:02,977 INFO L85 PathProgramCache]: Analyzing trace with hash 791274224, now seen corresponding path program 1 times [2022-03-04 00:18:02,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:18:02,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010020432] [2022-03-04 00:18:02,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:18:02,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:18:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 00:18:03,014 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-04 00:18:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 00:18:03,082 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-04 00:18:03,082 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-04 00:18:03,084 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 00:18:03,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-04 00:18:03,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 00:18:03,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-04 00:18:03,090 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-04 00:18:03,093 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 00:18:03,093 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 00:18:03,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:18:03 BasicIcfg [2022-03-04 00:18:03,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 00:18:03,122 INFO L158 Benchmark]: Toolchain (without parser) took 1153.45ms. Allocated memory was 215.0MB in the beginning and 329.3MB in the end (delta: 114.3MB). Free memory was 188.7MB in the beginning and 293.4MB in the end (delta: -104.7MB). Peak memory consumption was 58.8MB. Max. memory is 8.0GB. [2022-03-04 00:18:03,122 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 215.0MB. Free memory is still 176.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 00:18:03,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.90ms. Allocated memory was 215.0MB in the beginning and 329.3MB in the end (delta: 114.3MB). Free memory was 188.7MB in the beginning and 301.4MB in the end (delta: -112.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-04 00:18:03,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.02ms. Allocated memory is still 329.3MB. Free memory was 301.1MB in the beginning and 299.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 00:18:03,123 INFO L158 Benchmark]: Boogie Preprocessor took 11.07ms. Allocated memory is still 329.3MB. Free memory was 299.6MB in the beginning and 298.6MB in the end (delta: 991.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 00:18:03,123 INFO L158 Benchmark]: RCFGBuilder took 260.01ms. Allocated memory is still 329.3MB. Free memory was 298.6MB in the beginning and 288.8MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 00:18:03,124 INFO L158 Benchmark]: TraceAbstraction took 677.47ms. Allocated memory is still 329.3MB. Free memory was 288.1MB in the beginning and 293.4MB in the end (delta: -5.3MB). Peak memory consumption was 44.7MB. Max. memory is 8.0GB. [2022-03-04 00:18:03,126 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 215.0MB. Free memory is still 176.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 174.90ms. Allocated memory was 215.0MB in the beginning and 329.3MB in the end (delta: 114.3MB). Free memory was 188.7MB in the beginning and 301.4MB in the end (delta: -112.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.02ms. Allocated memory is still 329.3MB. Free memory was 301.1MB in the beginning and 299.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.07ms. Allocated memory is still 329.3MB. Free memory was 299.6MB in the beginning and 298.6MB in the end (delta: 991.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 260.01ms. Allocated memory is still 329.3MB. Free memory was 298.6MB in the beginning and 288.8MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 677.47ms. Allocated memory is still 329.3MB. Free memory was 288.1MB in the beginning and 293.4MB in the end (delta: -5.3MB). Peak memory consumption was 44.7MB. 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: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int x = 0; VAL [x=0] [L27] 0 pthread_t first_th_id; VAL [first_th_id={3:0}, x=0] [L28] 0 pthread_t second_th_id; VAL [first_th_id={3:0}, second_th_id={2:0}, x=0] [L30] FCALL, FORK 0 pthread_create(&first_th_id, NULL, inc, NULL) VAL [first_th_id={3:0}, n={0:0}, pthread_create(&first_th_id, NULL, inc, NULL)=-1, second_th_id={2:0}, x=0] [L31] FCALL, FORK 0 pthread_create(&second_th_id, NULL, dec, NULL) VAL [first_th_id={3:0}, n={0:0}, n={0:0}, pthread_create(&second_th_id, NULL, dec, NULL)=0, second_th_id={2:0}, x=0] [L33] 0 \read(first_th_id) VAL [\read(first_th_id)=-1, first_th_id={3:0}, n={0:0}, n={0:0}, second_th_id={2:0}, x=0] [L22] 2 x-- VAL [n={0:0}, n={0:0}, n={0:0}, x=0, x--=0] [L17] 1 x++ VAL [n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=0] [L18] 1 return NULL; VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=0] [L33] FCALL, JOIN 1 pthread_join(first_th_id, NULL) VAL [\read(first_th_id)=-1, \result={0:0}, first_th_id={3:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, second_th_id={2:0}, x=1, x--=0] [L34] 0 int y = x; VAL [\result={0:0}, first_th_id={3:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, second_th_id={2:0}, x=1, x--=0, y=1] [L22] 2 x-- VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=-1, x--=0] [L36] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, first_th_id={3:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, second_th_id={2:0}, x=-1, x--=0, y=1] - UnprovableResult [Line: 31]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 68 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, 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: 3, 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, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 00:18:03,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-03-04 00:18:03,369 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...