/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 23:58:27,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 23:58:27,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 23:58:27,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 23:58:27,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 23:58:27,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 23:58:27,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 23:58:27,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 23:58:27,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 23:58:27,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 23:58:27,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 23:58:27,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 23:58:27,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 23:58:27,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 23:58:27,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 23:58:27,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 23:58:27,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 23:58:27,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 23:58:27,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 23:58:27,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 23:58:27,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 23:58:27,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 23:58:27,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 23:58:27,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 23:58:27,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 23:58:27,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 23:58:27,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 23:58:27,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 23:58:27,816 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-FA-NoLbe.epf [2022-02-10 23:58:27,830 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 23:58:27,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 23:58:27,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 23:58:27,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 23:58:27,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 23:58:27,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 23:58:27,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 23:58:27,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 23:58:27,832 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 23:58:27,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 23:58:27,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 23:58:27,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 23:58:27,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 23:58:27,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 23:58:27,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 23:58:27,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 23:58:27,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 23:58:27,833 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 23:58:27,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 23:58:27,833 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 23:58:27,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 23:58:27,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 23:58:27,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 23:58:27,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 23:58:27,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 23:58:27,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:58:27,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 23:58:27,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 23:58:27,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 23:58:27,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 23:58:27,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 23:58:27,835 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 23:58:27,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 23:58:27,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 23:58:28,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 23:58:28,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 23:58:28,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 23:58:28,032 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 23:58:28,037 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 23:58:28,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2022-02-10 23:58:28,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5d0f986/2a151a8ff60d43e0a8c5d36d0a1b5535/FLAG5007d1eda [2022-02-10 23:58:28,390 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 23:58:28,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2022-02-10 23:58:28,391 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-10 23:58:28,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5d0f986/2a151a8ff60d43e0a8c5d36d0a1b5535/FLAG5007d1eda [2022-02-10 23:58:28,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5d0f986/2a151a8ff60d43e0a8c5d36d0a1b5535 [2022-02-10 23:58:28,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 23:58:28,835 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 23:58:28,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 23:58:28,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 23:58:28,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 23:58:28,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:58:28" (1/1) ... [2022-02-10 23:58:28,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cedc6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:28, skipping insertion in model container [2022-02-10 23:58:28,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:58:28" (1/1) ... [2022-02-10 23:58:28,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 23:58:28,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 23:58:28,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:58:29,005 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 23:58:29,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:58:29,024 INFO L208 MainTranslator]: Completed translation [2022-02-10 23:58:29,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29 WrapperNode [2022-02-10 23:58:29,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 23:58:29,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 23:58:29,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 23:58:29,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 23:58:29,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29" (1/1) ... [2022-02-10 23:58:29,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29" (1/1) ... [2022-02-10 23:58:29,067 INFO L137 Inliner]: procedures = 10, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-02-10 23:58:29,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 23:58:29,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 23:58:29,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 23:58:29,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 23:58:29,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29" (1/1) ... [2022-02-10 23:58:29,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29" (1/1) ... [2022-02-10 23:58:29,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29" (1/1) ... [2022-02-10 23:58:29,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29" (1/1) ... [2022-02-10 23:58:29,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29" (1/1) ... [2022-02-10 23:58:29,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29" (1/1) ... [2022-02-10 23:58:29,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29" (1/1) ... [2022-02-10 23:58:29,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 23:58:29,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 23:58:29,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 23:58:29,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 23:58:29,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29" (1/1) ... [2022-02-10 23:58:29,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:58:29,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:58:29,161 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) [2022-02-10 23:58:29,189 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 [2022-02-10 23:58:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 23:58:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 23:58:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 23:58:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-10 23:58:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-10 23:58:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 23:58:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 23:58:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 23:58:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 23:58:29,204 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 23:58:29,254 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 23:58:29,256 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 23:58:29,315 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 23:58:29,330 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 23:58:29,330 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 23:58:29,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:58:29 BoogieIcfgContainer [2022-02-10 23:58:29,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 23:58:29,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 23:58:29,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 23:58:29,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 23:58:29,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 11:58:28" (1/3) ... [2022-02-10 23:58:29,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4811cc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:58:29, skipping insertion in model container [2022-02-10 23:58:29,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:58:29" (2/3) ... [2022-02-10 23:58:29,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4811cc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:58:29, skipping insertion in model container [2022-02-10 23:58:29,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:58:29" (3/3) ... [2022-02-10 23:58:29,350 INFO L112 eAbstractionObserver]: Analyzing ICFG 14b-subsequent-blocks.c [2022-02-10 23:58:29,354 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 23:58:29,354 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 23:58:29,354 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 23:58:29,354 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 23:58:29,391 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,391 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,391 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,391 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,391 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,392 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,392 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,392 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,392 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,392 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,392 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,393 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,395 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,396 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,396 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,396 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:58:29,397 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-10 23:58:29,442 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:58:29,447 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=FINITE_AUTOMATA, 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 [2022-02-10 23:58:29,447 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 23:58:29,455 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 30 transitions, 65 flow [2022-02-10 23:58:29,477 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 states have internal predecessors, (63), 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) [2022-02-10 23:58:29,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 states have internal predecessors, (63), 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) [2022-02-10 23:58:29,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-02-10 23:58:29,488 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:58:29,488 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:58:29,490 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:58:29,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:58:29,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1133540566, now seen corresponding path program 1 times [2022-02-10 23:58:29,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:58:29,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447977723] [2022-02-10 23:58:29,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:58:29,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:58:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:58:29,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:58:29,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:58:29,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447977723] [2022-02-10 23:58:29,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447977723] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:58:29,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:58:29,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:58:29,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509057643] [2022-02-10 23:58:29,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:58:29,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 23:58:29,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:58:29,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 23:58:29,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 23:58:29,748 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 states have internal predecessors, (63), 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) Second operand 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) [2022-02-10 23:58:29,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:58:29,793 INFO L93 Difference]: Finished difference Result 48 states and 66 transitions. [2022-02-10 23:58:29,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 23:58:29,795 INFO L78 Accepts]: Start accepts. 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) Word has length 19 [2022-02-10 23:58:29,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:58:29,801 INFO L225 Difference]: With dead ends: 48 [2022-02-10 23:58:29,801 INFO L226 Difference]: Without dead ends: 33 [2022-02-10 23:58:29,812 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 23:58:29,815 INFO L934 BasicCegarLoop]: 28 mSDtfsCounter, 6 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:58:29,816 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 65 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:58:29,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-02-10 23:58:29,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-02-10 23:58:29,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 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) [2022-02-10 23:58:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2022-02-10 23:58:29,851 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 19 [2022-02-10 23:58:29,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:58:29,852 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2022-02-10 23:58:29,852 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) [2022-02-10 23:58:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2022-02-10 23:58:29,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-10 23:58:29,855 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:58:29,855 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:58:29,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 23:58:29,856 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 23:58:29,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:58:29,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1437334733, now seen corresponding path program 1 times [2022-02-10 23:58:29,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:58:29,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576562809] [2022-02-10 23:58:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:58:29,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:58:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:58:29,898 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:58:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:58:29,940 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:58:29,940 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:58:29,942 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-10 23:58:29,944 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-10 23:58:29,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 23:58:29,947 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-10 23:58:29,951 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 23:58:29,952 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 23:58:29,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 11:58:29 BasicIcfg [2022-02-10 23:58:29,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 23:58:29,980 INFO L158 Benchmark]: Toolchain (without parser) took 1144.50ms. Allocated memory was 195.0MB in the beginning and 319.8MB in the end (delta: 124.8MB). Free memory was 137.2MB in the beginning and 247.6MB in the end (delta: -110.4MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. [2022-02-10 23:58:29,981 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 23:58:29,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.53ms. Allocated memory was 195.0MB in the beginning and 319.8MB in the end (delta: 124.8MB). Free memory was 137.1MB in the beginning and 290.5MB in the end (delta: -153.4MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. [2022-02-10 23:58:29,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.84ms. Allocated memory is still 319.8MB. Free memory was 290.5MB in the beginning and 289.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 23:58:29,986 INFO L158 Benchmark]: Boogie Preprocessor took 21.16ms. Allocated memory is still 319.8MB. Free memory was 289.0MB in the beginning and 288.5MB in the end (delta: 540.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 23:58:29,987 INFO L158 Benchmark]: RCFGBuilder took 240.69ms. Allocated memory is still 319.8MB. Free memory was 288.5MB in the beginning and 276.4MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-10 23:58:29,989 INFO L158 Benchmark]: TraceAbstraction took 646.21ms. Allocated memory is still 319.8MB. Free memory was 276.4MB in the beginning and 247.6MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-02-10 23:58:29,996 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 184.53ms. Allocated memory was 195.0MB in the beginning and 319.8MB in the end (delta: 124.8MB). Free memory was 137.1MB in the beginning and 290.5MB in the end (delta: -153.4MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.84ms. Allocated memory is still 319.8MB. Free memory was 290.5MB in the beginning and 289.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.16ms. Allocated memory is still 319.8MB. Free memory was 289.0MB in the beginning and 288.5MB in the end (delta: 540.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 240.69ms. Allocated memory is still 319.8MB. Free memory was 288.5MB in the beginning and 276.4MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 646.21ms. Allocated memory is still 319.8MB. Free memory was 276.4MB in the beginning and 247.6MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 35]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = -1; VAL [x=-1] [L23] 0 pthread_t threadId; VAL [threadId={2:0}, x=-1] [L24] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, pthread_create(&threadId, NULL, &foo, NULL)=-1, threadId={2:0}, x=-1] [L27] 0 x = 1 [L28] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=2] [L18] 1 x = 0 VAL [arg={0:0}, arg={0:0}, x=0] [L31] 0 x = x + 1 [L32] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=2] [L35] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=2] - UnprovableResult [Line: 24]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 28 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, 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! [2022-02-10 23:58:30,030 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...