/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-c7b2d19 [2022-03-16 05:43:38,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 05:43:38,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 05:43:38,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 05:43:38,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 05:43:38,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 05:43:38,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 05:43:38,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 05:43:38,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 05:43:38,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 05:43:38,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 05:43:38,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 05:43:38,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 05:43:38,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 05:43:38,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 05:43:38,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 05:43:38,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 05:43:38,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 05:43:38,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 05:43:38,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 05:43:38,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 05:43:38,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 05:43:38,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 05:43:38,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 05:43:38,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 05:43:38,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 05:43:38,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 05:43:38,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 05:43:38,369 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 [2022-03-16 05:43:38,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 05:43:38,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 05:43:38,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 05:43:38,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 05:43:38,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 05:43:38,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 05:43:38,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 05:43:38,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 05:43:38,399 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 05:43:38,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 05:43:38,400 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 05:43:38,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 05:43:38,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 05:43:38,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 05:43:38,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 05:43:38,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 05:43:38,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 05:43:38,401 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 05:43:38,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 05:43:38,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 05:43:38,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 05:43:38,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 05:43:38,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 05:43:38,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 05:43:38,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 05:43:38,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 05:43:38,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 05:43:38,402 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 05:43:38,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 05:43:38,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 05:43:38,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 05:43:38,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 05:43:38,402 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 05:43:38,402 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 05:43:38,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 05:43:38,403 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 05:43:38,403 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-16 05:43:38,403 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 05:43:38,403 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 05:43:38,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 05:43:38,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 05:43:38,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 05:43:38,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-16 05:43:38,620 INFO L275 PluginConnector]: CDTParser initialized [2022-03-16 05:43:38,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2022-03-16 05:43:38,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42e7a94ea/784ac3c3aa2843cab45698d29adb134d/FLAG7085fdf3d [2022-03-16 05:43:39,049 INFO L306 CDTParser]: Found 1 translation units. [2022-03-16 05:43:39,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2022-03-16 05:43:39,050 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-16 05:43:39,050 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-16 05:43:39,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42e7a94ea/784ac3c3aa2843cab45698d29adb134d/FLAG7085fdf3d [2022-03-16 05:43:39,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42e7a94ea/784ac3c3aa2843cab45698d29adb134d [2022-03-16 05:43:39,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 05:43:39,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-16 05:43:39,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-16 05:43:39,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-16 05:43:39,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-16 05:43:39,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fddbf75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39, skipping insertion in model container [2022-03-16 05:43:39,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-16 05:43:39,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-16 05:43:39,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 05:43:39,264 INFO L203 MainTranslator]: Completed pre-run [2022-03-16 05:43:39,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 05:43:39,281 INFO L208 MainTranslator]: Completed translation [2022-03-16 05:43:39,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39 WrapperNode [2022-03-16 05:43:39,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-16 05:43:39,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 05:43:39,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 05:43:39,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 05:43:39,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,305 INFO L137 Inliner]: procedures = 9, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2022-03-16 05:43:39,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 05:43:39,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 05:43:39,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 05:43:39,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 05:43:39,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 05:43:39,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 05:43:39,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 05:43:39,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 05:43:39,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39" (1/1) ... [2022-03-16 05:43:39,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 05:43:39,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:43:39,359 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) [2022-03-16 05:43:39,365 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 [2022-03-16 05:43:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-16 05:43:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2022-03-16 05:43:39,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2022-03-16 05:43:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 05:43:39,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 05:43:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-16 05:43:39,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-16 05:43:39,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-16 05:43:39,396 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2022-03-16 05:43:39,396 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2022-03-16 05:43:39,397 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 05:43:39,450 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 05:43:39,451 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 05:43:39,548 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 05:43:39,553 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 05:43:39,553 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 05:43:39,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 05:43:39 BoogieIcfgContainer [2022-03-16 05:43:39,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 05:43:39,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 05:43:39,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 05:43:39,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 05:43:39,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 05:43:39" (1/3) ... [2022-03-16 05:43:39,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5c802b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 05:43:39, skipping insertion in model container [2022-03-16 05:43:39,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:43:39" (2/3) ... [2022-03-16 05:43:39,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5c802b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 05:43:39, skipping insertion in model container [2022-03-16 05:43:39,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 05:43:39" (3/3) ... [2022-03-16 05:43:39,560 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest1.c [2022-03-16 05:43:39,564 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 05:43:39,564 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 05:43:39,564 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 05:43:39,564 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 05:43:39,585 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,585 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,585 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,585 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,599 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,599 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,599 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,600 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,600 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,600 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,600 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,601 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,601 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,601 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,601 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,602 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,602 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,602 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,603 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,603 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,603 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,604 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,604 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,604 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,604 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,604 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,605 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,605 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,605 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,605 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,606 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,606 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,606 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,606 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,606 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,606 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,609 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,610 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,610 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,610 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,610 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,612 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,612 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,612 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,613 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,613 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:43:39,615 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-16 05:43:39,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 05:43:39,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:43:39,669 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) [2022-03-16 05:43:39,671 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 [2022-03-16 05:43:39,695 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 05:43:39,702 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 [2022-03-16 05:43:39,702 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 05:43:39,946 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 58 transitions and produced 59 states. [2022-03-16 05:43:39,948 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:43:39,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:43:39,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1461857850, now seen corresponding path program 1 times [2022-03-16 05:43:39,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:43:39,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177866000] [2022-03-16 05:43:39,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:43:39,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:43:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:43:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:43:40,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:43:40,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177866000] [2022-03-16 05:43:40,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177866000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 05:43:40,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 05:43:40,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-16 05:43:40,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194473944] [2022-03-16 05:43:40,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 05:43:40,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 05:43:40,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:43:40,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 05:43:40,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 05:43:40,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:43:40,239 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:43:40,240 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) [2022-03-16 05:43:40,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:43:40,746 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 237 transitions and produced 166 states. [2022-03-16 05:43:40,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 05:43:40,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 05:43:40,748 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:43:40,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:43:40,751 INFO L85 PathProgramCache]: Analyzing trace with hash 791274224, now seen corresponding path program 1 times [2022-03-16 05:43:40,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:43:40,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083453426] [2022-03-16 05:43:40,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:43:40,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:43:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 05:43:40,796 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-16 05:43:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 05:43:40,844 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-16 05:43:40,845 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-16 05:43:40,846 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 05:43:40,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 05:43:40,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 05:43:40,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 05:43:40,853 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-16 05:43:40,857 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 05:43:40,857 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 05:43:40,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 05:43:40 BasicIcfg [2022-03-16 05:43:40,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 05:43:40,908 INFO L158 Benchmark]: Toolchain (without parser) took 1821.37ms. Allocated memory was 212.9MB in the beginning and 257.9MB in the end (delta: 45.1MB). Free memory was 156.1MB in the beginning and 122.2MB in the end (delta: 33.8MB). Peak memory consumption was 79.7MB. Max. memory is 8.0GB. [2022-03-16 05:43:40,909 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 212.9MB. Free memory is still 174.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 05:43:40,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.20ms. Allocated memory was 212.9MB in the beginning and 257.9MB in the end (delta: 45.1MB). Free memory was 155.8MB in the beginning and 230.2MB in the end (delta: -74.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-03-16 05:43:40,909 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.65ms. Allocated memory is still 257.9MB. Free memory was 230.2MB in the beginning and 228.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 05:43:40,910 INFO L158 Benchmark]: Boogie Preprocessor took 26.96ms. Allocated memory is still 257.9MB. Free memory was 228.7MB in the beginning and 227.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 05:43:40,910 INFO L158 Benchmark]: RCFGBuilder took 219.49ms. Allocated memory is still 257.9MB. Free memory was 227.6MB in the beginning and 216.6MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-16 05:43:40,910 INFO L158 Benchmark]: TraceAbstraction took 1352.01ms. Allocated memory is still 257.9MB. Free memory was 216.1MB in the beginning and 122.2MB in the end (delta: 93.8MB). Peak memory consumption was 94.4MB. Max. memory is 8.0GB. [2022-03-16 05:43:40,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 212.9MB. Free memory is still 174.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 194.20ms. Allocated memory was 212.9MB in the beginning and 257.9MB in the end (delta: 45.1MB). Free memory was 155.8MB in the beginning and 230.2MB in the end (delta: -74.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.65ms. Allocated memory is still 257.9MB. Free memory was 230.2MB in the beginning and 228.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.96ms. Allocated memory is still 257.9MB. Free memory was 228.7MB in the beginning and 227.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 219.49ms. Allocated memory is still 257.9MB. Free memory was 227.6MB in the beginning and 216.6MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1352.01ms. Allocated memory is still 257.9MB. Free memory was 216.1MB in the beginning and 122.2MB in the end (delta: 93.8MB). Peak memory consumption was 94.4MB. 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: 1.2s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.7s, 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! [2022-03-16 05:43:40,952 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 [2022-03-16 05:43:41,154 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...