/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-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 08:19:05,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 08:19:05,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 08:19:05,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-09 08:19:05,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-09 08:19:05,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-09 08:19:05,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-09 08:19:05,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-09 08:19:05,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-09 08:19:05,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-09 08:19:05,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-09 08:19:05,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-09 08:19:05,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 08:19:05,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 08:19:05,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 08:19:05,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 08:19:05,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 08:19:05,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 08:19:05,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 08:19:05,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 08:19:05,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 08:19:05,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 08:19:05,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 08:19:05,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 08:19:05,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-09 08:19:05,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 08:19:05,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 08:19:05,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 08:19:05,902 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-POR-NewStatesSleep-NoLbe.epf [2022-02-09 08:19:05,920 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 08:19:05,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 08:19:05,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 08:19:05,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 08:19:05,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 08:19:05,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 08:19:05,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 08:19:05,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 08:19:05,922 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 08:19:05,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 08:19:05,922 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 08:19:05,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 08:19:05,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 08:19:05,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 08:19:05,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 08:19:05,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 08:19:05,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 08:19:05,923 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 08:19:05,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 08:19:05,923 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 08:19:05,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 08:19:05,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 08:19:05,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 08:19:05,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 08:19:05,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 08:19:05,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 08:19:05,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 08:19:05,924 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 08:19:05,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 08:19:05,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 08:19:05,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 08:19:05,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 08:19:05,925 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 08:19:05,925 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 08:19:05,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 08:19:05,925 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-09 08:19:05,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 08:19:06,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 08:19:06,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 08:19:06,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 08:19:06,184 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 08:19:06,184 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 08:19:06,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c [2022-02-09 08:19:06,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c9603dbd/583e5473593246cdbc86390e75c6f259/FLAG3407980ed [2022-02-09 08:19:06,552 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 08:19:06,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c [2022-02-09 08:19:06,553 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-09 08:19:06,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c9603dbd/583e5473593246cdbc86390e75c6f259/FLAG3407980ed [2022-02-09 08:19:06,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c9603dbd/583e5473593246cdbc86390e75c6f259 [2022-02-09 08:19:06,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 08:19:06,978 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 08:19:06,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 08:19:06,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 08:19:06,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 08:19:06,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 08:19:06" (1/1) ... [2022-02-09 08:19:06,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128dd63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:06, skipping insertion in model container [2022-02-09 08:19:06,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 08:19:06" (1/1) ... [2022-02-09 08:19:06,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 08:19:07,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 08:19:07,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 08:19:07,145 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 08:19:07,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 08:19:07,168 INFO L208 MainTranslator]: Completed translation [2022-02-09 08:19:07,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07 WrapperNode [2022-02-09 08:19:07,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 08:19:07,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 08:19:07,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 08:19:07,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 08:19:07,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07" (1/1) ... [2022-02-09 08:19:07,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07" (1/1) ... [2022-02-09 08:19:07,199 INFO L137 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-02-09 08:19:07,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 08:19:07,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 08:19:07,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 08:19:07,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 08:19:07,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07" (1/1) ... [2022-02-09 08:19:07,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07" (1/1) ... [2022-02-09 08:19:07,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07" (1/1) ... [2022-02-09 08:19:07,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07" (1/1) ... [2022-02-09 08:19:07,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07" (1/1) ... [2022-02-09 08:19:07,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07" (1/1) ... [2022-02-09 08:19:07,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07" (1/1) ... [2022-02-09 08:19:07,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 08:19:07,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 08:19:07,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 08:19:07,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 08:19:07,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07" (1/1) ... [2022-02-09 08:19:07,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 08:19:07,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 08:19:07,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 08:19:07,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 08:19:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 08:19:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-09 08:19:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-09 08:19:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-09 08:19:07,291 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-09 08:19:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 08:19:07,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 08:19:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 08:19:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 08:19:07,292 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 08:19:07,348 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 08:19:07,349 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 08:19:07,413 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 08:19:07,418 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 08:19:07,419 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 08:19:07,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 08:19:07 BoogieIcfgContainer [2022-02-09 08:19:07,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 08:19:07,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 08:19:07,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 08:19:07,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 08:19:07,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 08:19:06" (1/3) ... [2022-02-09 08:19:07,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 08:19:07, skipping insertion in model container [2022-02-09 08:19:07,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:19:07" (2/3) ... [2022-02-09 08:19:07,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 08:19:07, skipping insertion in model container [2022-02-09 08:19:07,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 08:19:07" (3/3) ... [2022-02-09 08:19:07,427 INFO L111 eAbstractionObserver]: Analyzing ICFG 11b-double-end.c [2022-02-09 08:19:07,431 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 08:19:07,432 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 08:19:07,432 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 08:19:07,432 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 08:19:07,450 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,450 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,450 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,450 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,451 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,451 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,451 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,451 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,452 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,452 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,452 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,452 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,455 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,455 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,455 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,456 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:19:07,457 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-09 08:19:07,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 08:19:07,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 08:19:07,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 08:19:07,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-09 08:19:07,605 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 08:19:07,612 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 [2022-02-09 08:19:07,612 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-09 08:19:07,646 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 08:19:07,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 08:19:07,650 INFO L85 PathProgramCache]: Analyzing trace with hash -498706984, now seen corresponding path program 1 times [2022-02-09 08:19:07,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 08:19:07,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946902804] [2022-02-09 08:19:07,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 08:19:07,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 08:19:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 08:19:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 08:19:07,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 08:19:07,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946902804] [2022-02-09 08:19:07,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946902804] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 08:19:07,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 08:19:07,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 08:19:07,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087325897] [2022-02-09 08:19:07,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 08:19:07,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 08:19:07,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 08:19:07,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 08:19:07,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 08:19:07,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:19:07,852 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 08:19:07,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 08:19:07,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:19:07,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 08:19:07,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 08:19:07,904 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 08:19:07,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 08:19:07,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1779045529, now seen corresponding path program 1 times [2022-02-09 08:19:07,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 08:19:07,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541522876] [2022-02-09 08:19:07,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 08:19:07,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 08:19:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 08:19:07,923 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 08:19:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 08:19:07,948 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 08:19:07,948 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 08:19:07,950 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-09 08:19:07,951 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-09 08:19:07,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 08:19:07,957 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-09 08:19:07,961 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 08:19:07,961 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 08:19:07,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 08:19:07 BasicIcfg [2022-02-09 08:19:07,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 08:19:07,979 INFO L158 Benchmark]: Toolchain (without parser) took 1000.06ms. Allocated memory was 185.6MB in the beginning and 292.6MB in the end (delta: 107.0MB). Free memory was 125.7MB in the beginning and 219.0MB in the end (delta: -93.3MB). Peak memory consumption was 13.1MB. Max. memory is 8.0GB. [2022-02-09 08:19:07,980 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 08:19:07,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.00ms. Allocated memory was 185.6MB in the beginning and 292.6MB in the end (delta: 107.0MB). Free memory was 125.5MB in the beginning and 261.5MB in the end (delta: -135.9MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB. [2022-02-09 08:19:07,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.75ms. Allocated memory is still 292.6MB. Free memory was 261.5MB in the beginning and 259.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 08:19:07,981 INFO L158 Benchmark]: Boogie Preprocessor took 15.11ms. Allocated memory is still 292.6MB. Free memory was 259.9MB in the beginning and 258.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 08:19:07,982 INFO L158 Benchmark]: RCFGBuilder took 205.20ms. Allocated memory is still 292.6MB. Free memory was 258.8MB in the beginning and 248.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-09 08:19:07,982 INFO L158 Benchmark]: TraceAbstraction took 556.20ms. Allocated memory is still 292.6MB. Free memory was 248.4MB in the beginning and 219.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-02-09 08:19:07,984 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 185.6MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 188.00ms. Allocated memory was 185.6MB in the beginning and 292.6MB in the end (delta: 107.0MB). Free memory was 125.5MB in the beginning and 261.5MB in the end (delta: -135.9MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.75ms. Allocated memory is still 292.6MB. Free memory was 261.5MB in the beginning and 259.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.11ms. Allocated memory is still 292.6MB. Free memory was 259.9MB in the beginning and 258.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 205.20ms. Allocated memory is still 292.6MB. Free memory was 258.8MB in the beginning and 248.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 556.20ms. Allocated memory is still 292.6MB. Free memory was 248.4MB in the beginning and 219.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 21, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 21, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 20, positive conditional: 4, positive unconditional: 16, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 22, positive: 20, positive conditional: 4, positive unconditional: 16, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 20, positive conditional: 4, positive unconditional: 16, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 13, positive conditional: 2, positive unconditional: 11, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 26, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 8, negative conditional: 6, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, positive: 7, positive conditional: 2, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15, unknown conditional: 3, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 13, Positive conditional cache size: 2, Positive unconditional cache size: 11, Negative cache size: 2, Negative conditional cache size: 1, Negative unconditional cache size: 1, 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: 32]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = -1; VAL [x=-1] [L23] 0 pthread_t threadId; VAL [threadId={2:0}, x=-1] [L24] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, pthread_create(&threadId, NULL, &foo, NULL)=-1, threadId={2:0}, x=-1] [L27] 0 x = 1 VAL [arg={0:0}, threadId={2:0}, x=1] [L18] 1 x = 0 VAL [arg={0:0}, arg={0:0}, x=0] [L29] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1] [L32] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1] - UnprovableResult [Line: 24]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 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! [2022-02-09 08:19:08,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-02-09 08:19:08,219 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...