/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/09b-return-after-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 22:47:58,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 22:47:58,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 22:47:58,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 22:47:58,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 22:47:58,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 22:47:58,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 22:47:58,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 22:47:58,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 22:47:58,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 22:47:58,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 22:47:58,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 22:47:58,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 22:47:58,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 22:47:58,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 22:47:58,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 22:47:58,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 22:47:58,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 22:47:58,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 22:47:58,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 22:47:58,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 22:47:58,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 22:47:58,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 22:47:58,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 22:47:58,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-01 22:47:58,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-01 22:47:58,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-01 22:47:58,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-01 22:47:58,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-01 22:47:58,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-01 22:47:58,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-01 22:47:58,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-01 22:47:58,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-01 22:47:58,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 22:47:58,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 22:47:58,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 22:47:58,149 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 [2022-03-01 22:47:58,175 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 22:47:58,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 22:47:58,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 22:47:58,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 22:47:58,176 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 22:47:58,176 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 22:47:58,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 22:47:58,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 22:47:58,177 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 22:47:58,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 22:47:58,178 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 22:47:58,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 22:47:58,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 22:47:58,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 22:47:58,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 22:47:58,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 22:47:58,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 22:47:58,178 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 22:47:58,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 22:47:58,178 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 22:47:58,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 22:47:58,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 22:47:58,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 22:47:58,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 22:47:58,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 22:47:58,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 22:47:58,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 22:47:58,180 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-01 22:47:58,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 22:47:58,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 22:47:58,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 22:47:58,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 22:47:58,180 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 22:47:58,180 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-01 22:47:58,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 22:47:58,181 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-01 22:47:58,181 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-01 22:47:58,181 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-01 22:47:58,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 22:47:58,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 22:47:58,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 22:47:58,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 22:47:58,388 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 22:47:58,388 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 22:47:58,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/09b-return-after-end.c [2022-03-01 22:47:58,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/410047971/82f4995eea364189b4e725984ac7c53c/FLAG6729c6f6b [2022-03-01 22:47:58,772 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 22:47:58,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/09b-return-after-end.c [2022-03-01 22:47:58,773 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-01 22:47:58,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/410047971/82f4995eea364189b4e725984ac7c53c/FLAG6729c6f6b [2022-03-01 22:47:58,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/410047971/82f4995eea364189b4e725984ac7c53c [2022-03-01 22:47:58,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 22:47:58,815 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 22:47:58,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 22:47:58,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 22:47:58,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 22:47:58,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 10:47:58" (1/1) ... [2022-03-01 22:47:58,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f408ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:58, skipping insertion in model container [2022-03-01 22:47:58,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 10:47:58" (1/1) ... [2022-03-01 22:47:58,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 22:47:58,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 22:47:58,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 22:47:58,982 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 22:47:58,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 22:47:59,001 INFO L208 MainTranslator]: Completed translation [2022-03-01 22:47:59,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59 WrapperNode [2022-03-01 22:47:59,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 22:47:59,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 22:47:59,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 22:47:59,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 22:47:59,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59" (1/1) ... [2022-03-01 22:47:59,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59" (1/1) ... [2022-03-01 22:47:59,024 INFO L137 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-03-01 22:47:59,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 22:47:59,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 22:47:59,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 22:47:59,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 22:47:59,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59" (1/1) ... [2022-03-01 22:47:59,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59" (1/1) ... [2022-03-01 22:47:59,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59" (1/1) ... [2022-03-01 22:47:59,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59" (1/1) ... [2022-03-01 22:47:59,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59" (1/1) ... [2022-03-01 22:47:59,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59" (1/1) ... [2022-03-01 22:47:59,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59" (1/1) ... [2022-03-01 22:47:59,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 22:47:59,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 22:47:59,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 22:47:59,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 22:47:59,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59" (1/1) ... [2022-03-01 22:47:59,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 22:47:59,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:47:59,064 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) [2022-03-01 22:47:59,083 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 [2022-03-01 22:47:59,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 22:47:59,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-01 22:47:59,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-01 22:47:59,094 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-03-01 22:47:59,094 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-03-01 22:47:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 22:47:59,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 22:47:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 22:47:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 22:47:59,096 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 22:47:59,153 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 22:47:59,154 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 22:47:59,273 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 22:47:59,281 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 22:47:59,282 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 22:47:59,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 10:47:59 BoogieIcfgContainer [2022-03-01 22:47:59,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 22:47:59,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 22:47:59,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 22:47:59,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 22:47:59,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 10:47:58" (1/3) ... [2022-03-01 22:47:59,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d3a55a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 10:47:59, skipping insertion in model container [2022-03-01 22:47:59,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:47:59" (2/3) ... [2022-03-01 22:47:59,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d3a55a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 10:47:59, skipping insertion in model container [2022-03-01 22:47:59,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 10:47:59" (3/3) ... [2022-03-01 22:47:59,289 INFO L111 eAbstractionObserver]: Analyzing ICFG 09b-return-after-end.c [2022-03-01 22:47:59,292 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 22:47:59,292 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 22:47:59,292 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 22:47:59,292 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 22:47:59,307 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,307 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,307 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,307 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,308 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,308 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,308 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,308 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,309 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,309 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,309 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,309 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,309 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,309 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,310 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,310 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,312 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,312 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,312 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,312 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:47:59,313 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-01 22:47:59,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-01 22:47:59,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:47:59,348 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) [2022-03-01 22:47:59,349 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 [2022-03-01 22:47:59,366 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 22:47:59,371 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 [2022-03-01 22:47:59,371 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-01 22:47:59,397 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 23 transitions and produced 24 states. [2022-03-01 22:47:59,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 22:47:59,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:47:59,403 INFO L85 PathProgramCache]: Analyzing trace with hash -537340688, now seen corresponding path program 1 times [2022-03-01 22:47:59,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:47:59,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131552591] [2022-03-01 22:47:59,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:47:59,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:47:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:47:59,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:47:59,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:47:59,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131552591] [2022-03-01 22:47:59,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131552591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 22:47:59,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 22:47:59,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 22:47:59,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322580899] [2022-03-01 22:47:59,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 22:47:59,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 22:47:59,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:47:59,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 22:47:59,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 22:47:59,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:47:59,596 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:47:59,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 22:47:59,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:47:59,623 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 30 transitions and produced 29 states. [2022-03-01 22:47:59,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 22:47:59,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 22:47:59,624 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 22:47:59,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:47:59,626 INFO L85 PathProgramCache]: Analyzing trace with hash -572955552, now seen corresponding path program 1 times [2022-03-01 22:47:59,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:47:59,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098954851] [2022-03-01 22:47:59,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:47:59,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:47:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:47:59,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:47:59,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:47:59,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098954851] [2022-03-01 22:47:59,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098954851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 22:47:59,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 22:47:59,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 22:47:59,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617924951] [2022-03-01 22:47:59,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 22:47:59,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 22:47:59,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:47:59,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 22:47:59,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 22:47:59,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:47:59,671 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:47:59,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-03-01 22:47:59,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-01 22:47:59,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:47:59,686 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 40 transitions and produced 37 states. [2022-03-01 22:47:59,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 22:47:59,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 22:47:59,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 22:47:59,687 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 22:47:59,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:47:59,687 INFO L85 PathProgramCache]: Analyzing trace with hash -568313922, now seen corresponding path program 2 times [2022-03-01 22:47:59,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:47:59,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907602434] [2022-03-01 22:47:59,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:47:59,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:47:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-01 22:47:59,699 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-01 22:47:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-01 22:47:59,716 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-01 22:47:59,716 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-01 22:47:59,717 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-03-01 22:47:59,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-01 22:47:59,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 22:47:59,723 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-03-01 22:47:59,725 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 22:47:59,725 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 22:47:59,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 10:47:59 BasicIcfg [2022-03-01 22:47:59,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 22:47:59,741 INFO L158 Benchmark]: Toolchain (without parser) took 926.29ms. Allocated memory is still 187.7MB. Free memory was 135.1MB in the beginning and 117.5MB in the end (delta: 17.6MB). Peak memory consumption was 17.5MB. Max. memory is 8.0GB. [2022-03-01 22:47:59,741 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 153.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 22:47:59,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.93ms. Allocated memory is still 187.7MB. Free memory was 134.8MB in the beginning and 163.1MB in the end (delta: -28.3MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-03-01 22:47:59,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.32ms. Allocated memory is still 187.7MB. Free memory was 163.1MB in the beginning and 161.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 22:47:59,742 INFO L158 Benchmark]: Boogie Preprocessor took 16.08ms. Allocated memory is still 187.7MB. Free memory was 161.5MB in the beginning and 160.4MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 22:47:59,743 INFO L158 Benchmark]: RCFGBuilder took 240.32ms. Allocated memory is still 187.7MB. Free memory was 160.4MB in the beginning and 151.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-01 22:47:59,743 INFO L158 Benchmark]: TraceAbstraction took 456.14ms. Allocated memory is still 187.7MB. Free memory was 150.5MB in the beginning and 117.5MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-03-01 22:47:59,745 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 187.7MB. Free memory is still 153.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 186.93ms. Allocated memory is still 187.7MB. Free memory was 134.8MB in the beginning and 163.1MB in the end (delta: -28.3MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.32ms. Allocated memory is still 187.7MB. Free memory was 163.1MB in the beginning and 161.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.08ms. Allocated memory is still 187.7MB. Free memory was 161.5MB in the beginning and 160.4MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 240.32ms. Allocated memory is still 187.7MB. Free memory was 160.4MB in the beginning and 151.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 456.14ms. Allocated memory is still 187.7MB. Free memory was 150.5MB in the beginning and 117.5MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 1; VAL [x=1] [L16] 0 int y = 1; VAL [x=1, y=1] [L31] 0 pthread_t threadId; VAL [threadId={2:0}, x=1, y=1] [L32] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, pthread_create(&threadId, NULL, &foo, NULL)=-1, threadId={2:0}, x=1, y=1] [L20] COND TRUE 1 \read(y) VAL [arg={0:0}, arg={0:0}, x=1, y=1] [L34] 0 y = 0 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1, y=0] [L22] 1 x = y VAL [arg={0:0}, arg={0:0}, x=0, y=0] [L36] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=0, y=0] - UnprovableResult [Line: 32]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 41 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-03-01 22:47:59,770 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 [2022-03-01 22:47:59,987 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...