/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/16-goto-outside.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 12:56:55,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 12:56:55,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 12:56:55,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 12:56:55,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 12:56:55,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 12:56:55,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 12:56:55,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 12:56:55,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 12:56:55,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 12:56:55,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 12:56:55,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 12:56:55,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 12:56:55,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 12:56:55,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 12:56:55,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 12:56:55,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 12:56:55,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 12:56:55,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 12:56:55,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 12:56:55,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 12:56:55,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 12:56:55,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 12:56:55,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 12:56:55,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 12:56:55,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 12:56:55,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 12:56:55,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 12:56:55,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 12:56:55,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 12:56:55,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 12:56:55,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 12:56:55,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 12:56:55,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 12:56:55,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 12:56:55,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 12:56:55,615 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 [2021-06-05 12:56:55,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 12:56:55,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 12:56:55,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 12:56:55,645 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 12:56:55,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 12:56:55,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 12:56:55,648 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 12:56:55,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 12:56:55,648 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 12:56:55,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 12:56:55,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 12:56:55,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 12:56:55,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 12:56:55,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 12:56:55,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 12:56:55,649 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 12:56:55,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 12:56:55,650 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 12:56:55,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 12:56:55,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 12:56:55,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 12:56:55,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 12:56:55,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 12:56:55,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 12:56:55,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 12:56:55,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 12:56:55,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 12:56:55,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 12:56:55,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 12:56:55,651 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 12:56:55,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 12:56:55,651 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 12:56:55,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 12:56:55,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 12:56:55,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 12:56:55,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 12:56:55,965 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 12:56:55,965 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 12:56:55,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2021-06-05 12:56:56,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92fc5faac/c20e3d014d6b4e188192c1638dd9b144/FLAG092a37b38 [2021-06-05 12:56:56,427 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 12:56:56,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2021-06-05 12:56:56,428 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 12:56:56,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92fc5faac/c20e3d014d6b4e188192c1638dd9b144/FLAG092a37b38 [2021-06-05 12:56:56,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92fc5faac/c20e3d014d6b4e188192c1638dd9b144 [2021-06-05 12:56:56,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 12:56:56,484 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 12:56:56,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 12:56:56,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 12:56:56,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 12:56:56,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:56:56" (1/1) ... [2021-06-05 12:56:56,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f7d85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56, skipping insertion in model container [2021-06-05 12:56:56,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:56:56" (1/1) ... [2021-06-05 12:56:56,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 12:56:56,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 12:56:56,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 12:56:56,623 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 12:56:56,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 12:56:56,675 INFO L208 MainTranslator]: Completed translation [2021-06-05 12:56:56,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56 WrapperNode [2021-06-05 12:56:56,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 12:56:56,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 12:56:56,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 12:56:56,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 12:56:56,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56" (1/1) ... [2021-06-05 12:56:56,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56" (1/1) ... [2021-06-05 12:56:56,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 12:56:56,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 12:56:56,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 12:56:56,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 12:56:56,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56" (1/1) ... [2021-06-05 12:56:56,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56" (1/1) ... [2021-06-05 12:56:56,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56" (1/1) ... [2021-06-05 12:56:56,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56" (1/1) ... [2021-06-05 12:56:56,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56" (1/1) ... [2021-06-05 12:56:56,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56" (1/1) ... [2021-06-05 12:56:56,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56" (1/1) ... [2021-06-05 12:56:56,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 12:56:56,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 12:56:56,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 12:56:56,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 12:56:56,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 12:56:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 12:56:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 12:56:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 12:56:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-05 12:56:56,801 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-05 12:56:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 12:56:56,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 12:56:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 12:56:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 12:56:56,803 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 12:56:57,110 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 12:56:57,110 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-05 12:56:57,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:56:57 BoogieIcfgContainer [2021-06-05 12:56:57,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 12:56:57,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 12:56:57,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 12:56:57,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 12:56:57,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:56:56" (1/3) ... [2021-06-05 12:56:57,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654d3a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:56:57, skipping insertion in model container [2021-06-05 12:56:57,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:56" (2/3) ... [2021-06-05 12:56:57,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654d3a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:56:57, skipping insertion in model container [2021-06-05 12:56:57,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:56:57" (3/3) ... [2021-06-05 12:56:57,118 INFO L111 eAbstractionObserver]: Analyzing ICFG 16-goto-outside.c [2021-06-05 12:56:57,127 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 12:56:57,128 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 12:56:57,128 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 12:56:57,128 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 12:56:57,152 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,153 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,153 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,153 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,153 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,154 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,154 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,154 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,154 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,154 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,154 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,154 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,156 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,157 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,157 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,157 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:56:57,160 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 12:56:57,179 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 12:56:57,208 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 12:56:57,209 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 12:56:57,209 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 12:56:57,209 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 12:56:57,209 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 12:56:57,209 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 12:56:57,209 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 12:56:57,209 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 12:56:57,218 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 26 transitions, 57 flow [2021-06-05 12:56:57,232 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 66 states, 64 states have (on average 1.640625) internal successors, (105), 65 states have internal predecessors, (105), 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) [2021-06-05 12:56:57,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 64 states have (on average 1.640625) internal successors, (105), 65 states have internal predecessors, (105), 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) [2021-06-05 12:56:57,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-06-05 12:56:57,251 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:56:57,252 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:56:57,252 INFO L430 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:56:57,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:56:57,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1445211375, now seen corresponding path program 1 times [2021-06-05 12:56:57,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:56:57,264 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934654659] [2021-06-05 12:56:57,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:56:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:56:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:56:57,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:56:57,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934654659] [2021-06-05 12:56:57,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934654659] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:56:57,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:56:57,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 12:56:57,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70646504] [2021-06-05 12:56:57,396 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 12:56:57,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:56:57,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 12:56:57,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 12:56:57,409 INFO L87 Difference]: Start difference. First operand has 66 states, 64 states have (on average 1.640625) internal successors, (105), 65 states have internal predecessors, (105), 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 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-06-05 12:56:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:56:57,435 INFO L93 Difference]: Finished difference Result 66 states and 99 transitions. [2021-06-05 12:56:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 12:56:57,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2021-06-05 12:56:57,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:56:57,444 INFO L225 Difference]: With dead ends: 66 [2021-06-05 12:56:57,444 INFO L226 Difference]: Without dead ends: 26 [2021-06-05 12:56:57,445 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 12:56:57,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-06-05 12:56:57,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-06-05 12:56:57,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 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) [2021-06-05 12:56:57,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2021-06-05 12:56:57,472 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 14 [2021-06-05 12:56:57,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:56:57,472 INFO L482 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2021-06-05 12:56:57,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-06-05 12:56:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2021-06-05 12:56:57,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-06-05 12:56:57,473 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:56:57,473 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 12:56:57,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 12:56:57,474 INFO L430 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:56:57,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:56:57,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1558031528, now seen corresponding path program 1 times [2021-06-05 12:56:57,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:56:57,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212585842] [2021-06-05 12:56:57,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:56:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 12:56:57,491 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 12:56:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 12:56:57,502 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 12:56:57,518 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 12:56:57,518 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 12:56:57,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 12:56:57,522 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 12:56:57,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:56:57 BasicIcfg [2021-06-05 12:56:57,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 12:56:57,548 INFO L168 Benchmark]: Toolchain (without parser) took 1062.53 ms. Allocated memory is still 354.4 MB. Free memory was 318.0 MB in the beginning and 292.1 MB in the end (delta: 25.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 12:56:57,550 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory is still 336.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 12:56:57,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.08 ms. Allocated memory is still 354.4 MB. Free memory was 317.8 MB in the beginning and 337.4 MB in the end (delta: -19.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-05 12:56:57,552 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.64 ms. Allocated memory is still 354.4 MB. Free memory was 337.4 MB in the beginning and 336.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 12:56:57,553 INFO L168 Benchmark]: Boogie Preprocessor took 23.96 ms. Allocated memory is still 354.4 MB. Free memory was 336.1 MB in the beginning and 335.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 12:56:57,553 INFO L168 Benchmark]: RCFGBuilder took 382.83 ms. Allocated memory is still 354.4 MB. Free memory was 335.1 MB in the beginning and 318.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-06-05 12:56:57,555 INFO L168 Benchmark]: TraceAbstraction took 432.49 ms. Allocated memory is still 354.4 MB. Free memory was 318.3 MB in the beginning and 292.1 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 12:56:57,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory is still 336.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 190.08 ms. Allocated memory is still 354.4 MB. Free memory was 317.8 MB in the beginning and 337.4 MB in the end (delta: -19.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.64 ms. Allocated memory is still 354.4 MB. Free memory was 337.4 MB in the beginning and 336.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 23.96 ms. Allocated memory is still 354.4 MB. Free memory was 336.1 MB in the beginning and 335.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 382.83 ms. Allocated memory is still 354.4 MB. Free memory was 335.1 MB in the beginning and 318.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 432.49 ms. Allocated memory is still 354.4 MB. Free memory was 318.3 MB in the beginning and 292.1 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 0; VAL [x=0] [L16] 0 int y; VAL [x=0, y=0] [L24] 0 pthread_t threadId; VAL [x=0, y=0] [L25] FCALL, FORK 0 pthread_create(&threadId, NULL, & foo, NULL) VAL [arg={0:0}, x=0, y=0] [L28] 0 x = x + 1 [L29] COND TRUE 0 x != y VAL [arg={0:0}, x=1, y=0] [L19] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=1, y=0] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 313.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 19.3ms, AutomataDifference: 48.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 22.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 24 SDtfs, 9 SDslu, 6 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 14.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.9ms SsaConstructionTime, 26.1ms SatisfiabilityAnalysisTime, 49.8ms InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 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! Received shutdown request...