/usr/bin/java -Xmx16000000000 -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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 13:58:18,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 13:58:18,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 13:58:18,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 13:58:18,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 13:58:18,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 13:58:18,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 13:58:18,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 13:58:18,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 13:58:18,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 13:58:18,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 13:58:18,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 13:58:18,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 13:58:18,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 13:58:18,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 13:58:18,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 13:58:18,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 13:58:18,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 13:58:18,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 13:58:18,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 13:58:18,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 13:58:18,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 13:58:18,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 13:58:18,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 13:58:18,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 13:58:18,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 13:58:18,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 13:58:18,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 13:58:18,706 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-Separate.epf [2022-01-18 13:58:18,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 13:58:18,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 13:58:18,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 13:58:18,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 13:58:18,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 13:58:18,731 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 13:58:18,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 13:58:18,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 13:58:18,731 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 13:58:18,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 13:58:18,732 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 13:58:18,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 13:58:18,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 13:58:18,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 13:58:18,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 13:58:18,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 13:58:18,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 13:58:18,733 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 13:58:18,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 13:58:18,733 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 13:58:18,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 13:58:18,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 13:58:18,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 13:58:18,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 13:58:18,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 13:58:18,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 13:58:18,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 13:58:18,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 13:58:18,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 13:58:18,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 13:58:18,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 13:58:18,734 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 13:58:18,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 13:58:18,734 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 13:58:18,734 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 13:58:18,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 13:58:18,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 13:58:18,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 13:58:18,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 13:58:18,958 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 13:58:18,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c [2022-01-18 13:58:19,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6111a4fe/89c564c488084f549cfdf0e8829e4699/FLAGdcd40ec11 [2022-01-18 13:58:19,327 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 13:58:19,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c [2022-01-18 13:58:19,327 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-01-18 13:58:19,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6111a4fe/89c564c488084f549cfdf0e8829e4699/FLAGdcd40ec11 [2022-01-18 13:58:19,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6111a4fe/89c564c488084f549cfdf0e8829e4699 [2022-01-18 13:58:19,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 13:58:19,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 13:58:19,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 13:58:19,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 13:58:19,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 13:58:19,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d1050f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19, skipping insertion in model container [2022-01-18 13:58:19,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 13:58:19,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 13:58:19,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 13:58:19,540 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 13:58:19,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 13:58:19,555 INFO L208 MainTranslator]: Completed translation [2022-01-18 13:58:19,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19 WrapperNode [2022-01-18 13:58:19,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 13:58:19,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 13:58:19,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 13:58:19,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 13:58:19,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,575 INFO L137 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-01-18 13:58:19,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 13:58:19,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 13:58:19,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 13:58:19,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 13:58:19,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 13:58:19,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 13:58:19,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 13:58:19,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 13:58:19,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19" (1/1) ... [2022-01-18 13:58:19,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 13:58:19,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:58:19,611 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) [2022-01-18 13:58:19,622 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 [2022-01-18 13:58:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 13:58:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 13:58:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-01-18 13:58:19,642 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-01-18 13:58:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 13:58:19,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 13:58:19,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 13:58:19,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 13:58:19,643 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 13:58:19,688 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 13:58:19,689 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 13:58:19,748 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 13:58:19,751 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 13:58:19,751 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 13:58:19,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:58:19 BoogieIcfgContainer [2022-01-18 13:58:19,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 13:58:19,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 13:58:19,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 13:58:19,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 13:58:19,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:58:19" (1/3) ... [2022-01-18 13:58:19,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f95631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:58:19, skipping insertion in model container [2022-01-18 13:58:19,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:19" (2/3) ... [2022-01-18 13:58:19,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f95631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:58:19, skipping insertion in model container [2022-01-18 13:58:19,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:58:19" (3/3) ... [2022-01-18 13:58:19,766 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-end-no-begin.c [2022-01-18 13:58:19,769 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 13:58:19,769 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 13:58:19,770 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 13:58:19,770 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 13:58:19,813 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,813 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,813 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,813 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,814 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,814 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,814 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,814 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,814 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,815 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,815 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,815 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,817 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,818 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,818 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,818 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:19,820 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 13:58:19,864 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 13:58:19,884 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 [2022-01-18 13:58:19,885 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 13:58:19,891 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 30 transitions, 65 flow [2022-01-18 13:58:19,910 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) [2022-01-18 13:58:19,912 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) [2022-01-18 13:58:19,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-18 13:58:19,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:58:19,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:58:19,917 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 13:58:19,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:58:19,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2094865671, now seen corresponding path program 1 times [2022-01-18 13:58:19,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:58:19,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244055411] [2022-01-18 13:58:19,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:58:19,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:58:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:58:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:58:20,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:58:20,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244055411] [2022-01-18 13:58:20,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244055411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:58:20,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:58:20,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 13:58:20,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401045591] [2022-01-18 13:58:20,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:58:20,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 13:58:20,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:58:20,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 13:58:20,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 13:58:20,122 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) [2022-01-18 13:58:20,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:58:20,213 INFO L93 Difference]: Finished difference Result 48 states and 66 transitions. [2022-01-18 13:58:20,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 13:58:20,215 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 [2022-01-18 13:58:20,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:58:20,221 INFO L225 Difference]: With dead ends: 48 [2022-01-18 13:58:20,221 INFO L226 Difference]: Without dead ends: 31 [2022-01-18 13:58:20,223 INFO L932 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 [2022-01-18 13:58:20,226 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 31 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:58:20,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 34 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:58:20,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-01-18 13:58:20,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-01-18 13:58:20,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 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) [2022-01-18 13:58:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-01-18 13:58:20,253 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 19 [2022-01-18 13:58:20,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:58:20,253 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-01-18 13:58:20,254 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) [2022-01-18 13:58:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-01-18 13:58:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-18 13:58:20,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:58:20,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:58:20,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 13:58:20,255 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 13:58:20,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:58:20,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1174145594, now seen corresponding path program 1 times [2022-01-18 13:58:20,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:58:20,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470176590] [2022-01-18 13:58:20,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:58:20,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:58:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 13:58:20,284 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 13:58:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 13:58:20,360 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 13:58:20,361 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 13:58:20,361 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-01-18 13:58:20,367 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-18 13:58:20,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 13:58:20,369 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-18 13:58:20,387 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 13:58:20,388 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 13:58:20,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:58:20 BasicIcfg [2022-01-18 13:58:20,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 13:58:20,430 INFO L158 Benchmark]: Toolchain (without parser) took 1066.00ms. Allocated memory was 415.2MB in the beginning and 576.7MB in the end (delta: 161.5MB). Free memory was 355.5MB in the beginning and 502.2MB in the end (delta: -146.7MB). Peak memory consumption was 16.2MB. Max. memory is 16.0GB. [2022-01-18 13:58:20,430 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 415.2MB. Free memory is still 373.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 13:58:20,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.34ms. Allocated memory was 415.2MB in the beginning and 576.7MB in the end (delta: 161.5MB). Free memory was 355.3MB in the beginning and 546.2MB in the end (delta: -190.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.0GB. [2022-01-18 13:58:20,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.59ms. Allocated memory is still 576.7MB. Free memory was 546.2MB in the beginning and 545.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 13:58:20,431 INFO L158 Benchmark]: Boogie Preprocessor took 13.78ms. Allocated memory is still 576.7MB. Free memory was 545.2MB in the beginning and 544.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 13:58:20,431 INFO L158 Benchmark]: RCFGBuilder took 161.98ms. Allocated memory is still 576.7MB. Free memory was 544.1MB in the beginning and 531.5MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-18 13:58:20,431 INFO L158 Benchmark]: TraceAbstraction took 675.68ms. Allocated memory is still 576.7MB. Free memory was 531.5MB in the beginning and 502.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2022-01-18 13:58:20,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 415.2MB. Free memory is still 373.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 191.34ms. Allocated memory was 415.2MB in the beginning and 576.7MB in the end (delta: 161.5MB). Free memory was 355.3MB in the beginning and 546.2MB in the end (delta: -190.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 18.59ms. Allocated memory is still 576.7MB. Free memory was 546.2MB in the beginning and 545.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 13.78ms. Allocated memory is still 576.7MB. Free memory was 545.2MB in the beginning and 544.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 161.98ms. Allocated memory is still 576.7MB. Free memory was 544.1MB in the beginning and 531.5MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 675.68ms. Allocated memory is still 576.7MB. Free memory was 531.5MB in the beginning and 502.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * 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: 30]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 0; VAL [x=0] [L23] 0 pthread_t threadId; VAL [threadId={2:0}, x=0] [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=0] [L26] 0 x = 1 VAL [arg={0:0}, threadId={2:0}, x=1] [L18] 1 x = 2 VAL [arg={0:0}, arg={0:0}, x=2] [L27] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=3] [L30] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=3] - 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, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 23 mSDtfsCounter, 6 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! [2022-01-18 13:58:20,490 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...