/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/09b-return-after-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 13:58:24,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 13:58:24,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 13:58:24,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 13:58:24,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 13:58:24,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 13:58:24,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 13:58:24,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 13:58:24,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 13:58:24,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 13:58:24,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 13:58:24,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 13:58:24,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 13:58:24,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 13:58:24,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 13:58:24,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 13:58:24,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 13:58:24,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 13:58:24,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 13:58:24,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 13:58:24,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 13:58:24,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 13:58:24,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 13:58:24,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 13:58:24,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 13:58:24,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 13:58:24,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 13:58:24,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 13:58:24,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 13:58:24,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 13:58:24,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 13:58:24,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 13:58:24,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 13:58:24,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 13:58:24,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 13:58:24,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 13:58:24,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 13:58:24,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 13:58:24,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 13:58:24,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 13:58:24,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 13:58:24,600 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 13:58:24,618 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 13:58:24,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 13:58:24,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 13:58:24,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 13:58:24,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 13:58:24,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 13:58:24,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 13:58:24,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 13:58:24,620 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 13:58:24,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 13:58:24,620 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 13:58:24,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 13:58:24,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 13:58:24,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 13:58:24,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 13:58:24,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 13:58:24,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 13:58:24,621 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 13:58:24,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 13:58:24,621 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 13:58:24,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 13:58:24,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 13:58:24,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 13:58:24,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 13:58:24,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 13:58:24,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 13:58:24,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 13:58:24,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 13:58:24,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 13:58:24,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 13:58:24,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 13:58:24,622 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 13:58:24,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 13:58:24,623 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 13:58:24,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 13:58:24,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 13:58:24,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 13:58:24,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 13:58:24,842 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 13:58:24,843 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 13:58:24,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/09b-return-after-end.c [2022-01-18 13:58:24,902 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b9991baa/34131619d60e4035915bf28c0613dc57/FLAG2a69c45b7 [2022-01-18 13:58:25,284 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 13:58:25,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/09b-return-after-end.c [2022-01-18 13:58:25,285 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-01-18 13:58:25,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b9991baa/34131619d60e4035915bf28c0613dc57/FLAG2a69c45b7 [2022-01-18 13:58:25,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b9991baa/34131619d60e4035915bf28c0613dc57 [2022-01-18 13:58:25,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 13:58:25,324 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 13:58:25,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 13:58:25,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 13:58:25,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 13:58:25,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cda33e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25, skipping insertion in model container [2022-01-18 13:58:25,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 13:58:25,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 13:58:25,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 13:58:25,497 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 13:58:25,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 13:58:25,516 INFO L208 MainTranslator]: Completed translation [2022-01-18 13:58:25,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25 WrapperNode [2022-01-18 13:58:25,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 13:58:25,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 13:58:25,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 13:58:25,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 13:58:25,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,543 INFO L137 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-01-18 13:58:25,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 13:58:25,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 13:58:25,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 13:58:25,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 13:58:25,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 13:58:25,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 13:58:25,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 13:58:25,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 13:58:25,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25" (1/1) ... [2022-01-18 13:58:25,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 13:58:25,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:58:25,609 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 13:58:25,631 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 13:58:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 13:58:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 13:58:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 13:58:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-01-18 13:58:25,643 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-01-18 13:58:25,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 13:58:25,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 13:58:25,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 13:58:25,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 13:58:25,644 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 13:58:25,699 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 13:58:25,700 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 13:58:25,776 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 13:58:25,785 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 13:58:25,785 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 13:58:25,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:58:25 BoogieIcfgContainer [2022-01-18 13:58:25,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 13:58:25,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 13:58:25,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 13:58:25,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 13:58:25,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:58:25" (1/3) ... [2022-01-18 13:58:25,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f58c0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:58:25, skipping insertion in model container [2022-01-18 13:58:25,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:58:25" (2/3) ... [2022-01-18 13:58:25,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f58c0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:58:25, skipping insertion in model container [2022-01-18 13:58:25,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:58:25" (3/3) ... [2022-01-18 13:58:25,793 INFO L111 eAbstractionObserver]: Analyzing ICFG 09b-return-after-end.c [2022-01-18 13:58:25,797 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 13:58:25,797 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 13:58:25,797 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 13:58:25,797 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 13:58:25,826 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,826 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,827 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,827 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,830 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,830 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,830 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,830 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,833 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,835 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,836 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,836 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,836 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,836 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,836 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,836 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,839 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,839 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,840 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,840 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:58:25,841 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 13:58:25,887 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 13:58:25,915 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 13:58:25,915 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 13:58:25,927 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 33 transitions, 71 flow [2022-01-18 13:58:25,943 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 50 states, 49 states have (on average 1.5918367346938775) internal successors, (78), 49 states have internal predecessors, (78), 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 13:58:25,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 49 states have (on average 1.5918367346938775) internal successors, (78), 49 states have internal predecessors, (78), 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 13:58:25,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-18 13:58:25,950 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:58:25,950 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 13:58:25,951 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 13:58:25,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:58:25,955 INFO L85 PathProgramCache]: Analyzing trace with hash -537340688, now seen corresponding path program 1 times [2022-01-18 13:58:25,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:58:25,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214067042] [2022-01-18 13:58:25,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:58:25,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:58:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:58:26,095 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 13:58:26,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:58:26,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214067042] [2022-01-18 13:58:26,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214067042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:58:26,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:58:26,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 13:58:26,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463256565] [2022-01-18 13:58:26,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:58:26,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 13:58:26,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:58:26,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 13:58:26,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 13:58:26,124 INFO L87 Difference]: Start difference. First operand has 50 states, 49 states have (on average 1.5918367346938775) internal successors, (78), 49 states have internal predecessors, (78), 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 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:58:26,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:58:26,144 INFO L93 Difference]: Finished difference Result 54 states and 79 transitions. [2022-01-18 13:58:26,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 13:58:26,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-01-18 13:58:26,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:58:26,152 INFO L225 Difference]: With dead ends: 54 [2022-01-18 13:58:26,152 INFO L226 Difference]: Without dead ends: 42 [2022-01-18 13:58:26,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 13:58:26,156 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 13:58:26,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 13:58:26,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-01-18 13:58:26,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-01-18 13:58:26,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 41 states have internal predecessors, (58), 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 13:58:26,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2022-01-18 13:58:26,186 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 19 [2022-01-18 13:58:26,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:58:26,187 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2022-01-18 13:58:26,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:58:26,188 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2022-01-18 13:58:26,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-18 13:58:26,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:58:26,190 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, 1] [2022-01-18 13:58:26,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 13:58:26,190 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 13:58:26,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:58:26,195 INFO L85 PathProgramCache]: Analyzing trace with hash -572955552, now seen corresponding path program 1 times [2022-01-18 13:58:26,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:58:26,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916426235] [2022-01-18 13:58:26,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:58:26,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:58:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:58:26,252 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 13:58:26,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:58:26,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916426235] [2022-01-18 13:58:26,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916426235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:58:26,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:58:26,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 13:58:26,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104663491] [2022-01-18 13:58:26,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:58:26,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 13:58:26,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:58:26,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 13:58:26,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 13:58:26,256 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:58:26,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:58:26,272 INFO L93 Difference]: Finished difference Result 42 states and 57 transitions. [2022-01-18 13:58:26,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 13:58:26,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-18 13:58:26,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:58:26,275 INFO L225 Difference]: With dead ends: 42 [2022-01-18 13:58:26,275 INFO L226 Difference]: Without dead ends: 40 [2022-01-18 13:58:26,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 13:58:26,276 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 4 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 13:58:26,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 44 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 13:58:26,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-01-18 13:58:26,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-01-18 13:58:26,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 39 states have internal predecessors, (54), 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 13:58:26,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2022-01-18 13:58:26,283 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 22 [2022-01-18 13:58:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:58:26,283 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2022-01-18 13:58:26,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:58:26,283 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2022-01-18 13:58:26,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-18 13:58:26,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:58:26,284 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, 1] [2022-01-18 13:58:26,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 13:58:26,285 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 13:58:26,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:58:26,285 INFO L85 PathProgramCache]: Analyzing trace with hash -568313922, now seen corresponding path program 2 times [2022-01-18 13:58:26,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:58:26,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464207790] [2022-01-18 13:58:26,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:58:26,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:58:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 13:58:26,303 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 13:58:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 13:58:26,331 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 13:58:26,331 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 13:58:26,332 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-01-18 13:58:26,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-18 13:58:26,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 13:58:26,336 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-01-18 13:58:26,339 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 13:58:26,339 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 13:58:26,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:58:26 BasicIcfg [2022-01-18 13:58:26,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 13:58:26,358 INFO L158 Benchmark]: Toolchain (without parser) took 1033.81ms. Allocated memory was 373.3MB in the beginning and 482.3MB in the end (delta: 109.1MB). Free memory was 318.0MB in the beginning and 407.0MB in the end (delta: -88.9MB). Peak memory consumption was 19.3MB. Max. memory is 16.0GB. [2022-01-18 13:58:26,359 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 373.3MB. Free memory was 335.9MB in the beginning and 335.9MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 13:58:26,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.30ms. Allocated memory was 373.3MB in the beginning and 482.3MB in the end (delta: 109.1MB). Free memory was 317.8MB in the beginning and 455.2MB in the end (delta: -137.4MB). Peak memory consumption was 9.9MB. Max. memory is 16.0GB. [2022-01-18 13:58:26,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.41ms. Allocated memory is still 482.3MB. Free memory was 455.2MB in the beginning and 454.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 13:58:26,360 INFO L158 Benchmark]: Boogie Preprocessor took 15.85ms. Allocated memory is still 482.3MB. Free memory was 454.1MB in the beginning and 453.1MB in the end (delta: 943.1kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 13:58:26,361 INFO L158 Benchmark]: RCFGBuilder took 224.77ms. Allocated memory is still 482.3MB. Free memory was 453.1MB in the beginning and 441.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-18 13:58:26,361 INFO L158 Benchmark]: TraceAbstraction took 569.29ms. Allocated memory is still 482.3MB. Free memory was 441.6MB in the beginning and 407.0MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2022-01-18 13:58:26,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 373.3MB. Free memory was 335.9MB in the beginning and 335.9MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 191.30ms. Allocated memory was 373.3MB in the beginning and 482.3MB in the end (delta: 109.1MB). Free memory was 317.8MB in the beginning and 455.2MB in the end (delta: -137.4MB). Peak memory consumption was 9.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 26.41ms. Allocated memory is still 482.3MB. Free memory was 455.2MB in the beginning and 454.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 15.85ms. Allocated memory is still 482.3MB. Free memory was 454.1MB in the beginning and 453.1MB in the end (delta: 943.1kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 224.77ms. Allocated memory is still 482.3MB. Free memory was 453.1MB in the beginning and 441.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 569.29ms. Allocated memory is still 482.3MB. Free memory was 441.6MB in the beginning and 407.0MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. 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: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 1; VAL [x=1] [L16] 0 int y = 1; VAL [x=1, y=1] [L31] 0 pthread_t threadId; VAL [threadId={2:0}, x=1, y=1] [L32] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, pthread_create(&threadId, NULL, &foo, NULL)=-1, threadId={2:0}, x=1, y=1] [L20] COND TRUE 1 \read(y) VAL [arg={0:0}, arg={0:0}, x=1, y=1] [L34] 0 y = 0 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1, y=0] [L22] 1 x = y VAL [arg={0:0}, arg={0:0}, x=0, y=0] [L36] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=0, y=0] - UnprovableResult [Line: 32]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 41 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 50 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-18 13:58:26,399 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...