/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 20:32:00,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 20:32:00,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 20:32:00,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 20:32:00,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 20:32:00,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 20:32:00,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 20:32:00,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 20:32:00,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 20:32:00,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 20:32:00,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 20:32:00,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 20:32:00,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 20:32:00,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 20:32:00,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 20:32:00,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 20:32:00,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 20:32:00,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 20:32:00,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 20:32:00,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 20:32:00,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 20:32:00,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 20:32:00,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 20:32:00,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 20:32:00,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 20:32:00,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 20:32:00,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 20:32:00,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 20:32:00,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 20:32:00,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 20:32:00,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 20:32:00,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 20:32:00,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 20:32:00,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 20:32:00,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 20:32:00,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 20:32:00,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 20:32:00,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 20:32:00,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 20:32:00,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 20:32:00,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 20:32:00,939 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 20:32:00,962 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 20:32:00,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 20:32:00,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 20:32:00,963 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 20:32:00,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 20:32:00,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 20:32:00,964 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 20:32:00,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 20:32:00,964 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 20:32:00,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 20:32:00,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 20:32:00,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 20:32:00,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 20:32:00,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 20:32:00,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 20:32:00,965 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 20:32:00,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 20:32:00,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 20:32:00,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 20:32:00,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 20:32:00,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 20:32:00,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 20:32:00,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 20:32:00,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:32:00,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 20:32:00,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 20:32:00,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 20:32:00,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 20:32:00,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 20:32:00,966 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 20:32:00,966 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 20:32:00,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 20:32:00,967 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 20:32:01,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 20:32:01,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 20:32:01,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 20:32:01,187 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 20:32:01,187 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 20:32:01,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2022-03-15 20:32:01,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e764f188/49e0b25ee0f6444989ddfdba9f7823f2/FLAG64474a066 [2022-03-15 20:32:01,542 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 20:32:01,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2022-03-15 20:32:01,543 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-15 20:32:01,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e764f188/49e0b25ee0f6444989ddfdba9f7823f2/FLAG64474a066 [2022-03-15 20:32:01,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e764f188/49e0b25ee0f6444989ddfdba9f7823f2 [2022-03-15 20:32:01,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 20:32:01,971 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 20:32:01,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 20:32:01,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 20:32:01,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 20:32:01,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:32:01" (1/1) ... [2022-03-15 20:32:01,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc3e155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:01, skipping insertion in model container [2022-03-15 20:32:01,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:32:01" (1/1) ... [2022-03-15 20:32:01,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 20:32:01,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 20:32:02,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:32:02,116 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 20:32:02,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:32:02,131 INFO L208 MainTranslator]: Completed translation [2022-03-15 20:32:02,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02 WrapperNode [2022-03-15 20:32:02,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 20:32:02,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 20:32:02,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 20:32:02,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 20:32:02,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02" (1/1) ... [2022-03-15 20:32:02,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02" (1/1) ... [2022-03-15 20:32:02,155 INFO L137 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-03-15 20:32:02,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 20:32:02,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 20:32:02,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 20:32:02,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 20:32:02,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02" (1/1) ... [2022-03-15 20:32:02,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02" (1/1) ... [2022-03-15 20:32:02,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02" (1/1) ... [2022-03-15 20:32:02,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02" (1/1) ... [2022-03-15 20:32:02,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02" (1/1) ... [2022-03-15 20:32:02,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02" (1/1) ... [2022-03-15 20:32:02,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02" (1/1) ... [2022-03-15 20:32:02,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 20:32:02,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 20:32:02,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 20:32:02,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 20:32:02,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02" (1/1) ... [2022-03-15 20:32:02,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:32:02,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:32:02,203 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) [2022-03-15 20:32:02,208 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 [2022-03-15 20:32:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 20:32:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 20:32:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 20:32:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-03-15 20:32:02,231 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-03-15 20:32:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 20:32:02,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 20:32:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 20:32:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 20:32:02,233 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 20:32:02,284 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 20:32:02,285 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 20:32:02,383 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 20:32:02,407 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 20:32:02,407 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 20:32:02,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:32:02 BoogieIcfgContainer [2022-03-15 20:32:02,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 20:32:02,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 20:32:02,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 20:32:02,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 20:32:02,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 08:32:01" (1/3) ... [2022-03-15 20:32:02,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583745f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:32:02, skipping insertion in model container [2022-03-15 20:32:02,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:32:02" (2/3) ... [2022-03-15 20:32:02,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583745f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:32:02, skipping insertion in model container [2022-03-15 20:32:02,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:32:02" (3/3) ... [2022-03-15 20:32:02,433 INFO L111 eAbstractionObserver]: Analyzing ICFG 16-goto-outside.c [2022-03-15 20:32:02,437 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 20:32:02,437 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 20:32:02,437 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 20:32:02,437 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 20:32:02,474 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,475 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,475 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,475 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,475 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,476 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,476 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,476 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,476 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,476 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,477 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,477 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,479 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,480 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,480 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,480 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:32:02,481 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 20:32:02,529 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:32:02,537 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:32:02,538 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 20:32:02,551 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:32:02,557 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 30 transitions, 65 flow [2022-03-15 20:32:02,560 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 30 transitions, 65 flow [2022-03-15 20:32:02,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 30 transitions, 65 flow [2022-03-15 20:32:02,588 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2022-03-15 20:32:02,588 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-03-15 20:32:02,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 29 events. 0/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-03-15 20:32:02,591 INFO L116 LiptonReduction]: Number of co-enabled transitions 90 [2022-03-15 20:32:03,340 INFO L131 LiptonReduction]: Checked pairs total: 101 [2022-03-15 20:32:03,340 INFO L133 LiptonReduction]: Total number of compositions: 24 [2022-03-15 20:32:03,345 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 7 transitions, 19 flow [2022-03-15 20:32:03,354 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2022-03-15 20:32:03,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2022-03-15 20:32:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-03-15 20:32:03,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:32:03,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2022-03-15 20:32:03,360 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONASSERT === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT] === [2022-03-15 20:32:03,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:32:03,363 INFO L85 PathProgramCache]: Analyzing trace with hash 128326, now seen corresponding path program 1 times [2022-03-15 20:32:03,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:32:03,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065884277] [2022-03-15 20:32:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:32:03,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:32:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:32:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:32:03,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:32:03,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065884277] [2022-03-15 20:32:03,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065884277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:32:03,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:32:03,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 20:32:03,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [422334984] [2022-03-15 20:32:03,494 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:32:03,495 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:32:03,501 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2022-03-15 20:32:03,502 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:32:03,504 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:32:03,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:32:03,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:32:03,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:32:03,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:32:03,525 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-03-15 20:32:03,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:32:03,541 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2022-03-15 20:32:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:32:03,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-03-15 20:32:03,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:32:03,547 INFO L225 Difference]: With dead ends: 7 [2022-03-15 20:32:03,548 INFO L226 Difference]: Without dead ends: 6 [2022-03-15 20:32:03,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:32:03,552 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:32:03,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:32:03,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-03-15 20:32:03,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-03-15 20:32:03,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2022-03-15 20:32:03,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2022-03-15 20:32:03,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 3 [2022-03-15 20:32:03,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:32:03,571 INFO L470 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2022-03-15 20:32:03,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-03-15 20:32:03,571 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2022-03-15 20:32:03,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-03-15 20:32:03,571 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:32:03,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-03-15 20:32:03,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 20:32:03,572 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONASSERT === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT] === [2022-03-15 20:32:03,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:32:03,573 INFO L85 PathProgramCache]: Analyzing trace with hash 3978712, now seen corresponding path program 1 times [2022-03-15 20:32:03,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:32:03,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074178707] [2022-03-15 20:32:03,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:32:03,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:32:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:32:03,609 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:32:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:32:03,646 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:32:03,646 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:32:03,648 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location fooErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-15 20:32:03,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fooErr0ASSERT_VIOLATIONASSERT (1 of 3 remaining) [2022-03-15 20:32:03,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2022-03-15 20:32:03,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 20:32:03,657 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-15 20:32:03,660 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 20:32:03,660 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 20:32:03,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 08:32:03 BasicIcfg [2022-03-15 20:32:03,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 20:32:03,678 INFO L158 Benchmark]: Toolchain (without parser) took 1704.70ms. Allocated memory was 196.1MB in the beginning and 259.0MB in the end (delta: 62.9MB). Free memory was 138.1MB in the beginning and 149.7MB in the end (delta: -11.6MB). Peak memory consumption was 49.5MB. Max. memory is 8.0GB. [2022-03-15 20:32:03,678 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 196.1MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 20:32:03,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.10ms. Allocated memory was 196.1MB in the beginning and 259.0MB in the end (delta: 62.9MB). Free memory was 137.9MB in the beginning and 229.9MB in the end (delta: -92.0MB). Peak memory consumption was 5.5MB. Max. memory is 8.0GB. [2022-03-15 20:32:03,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.47ms. Allocated memory is still 259.0MB. Free memory was 229.9MB in the beginning and 228.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 20:32:03,681 INFO L158 Benchmark]: Boogie Preprocessor took 23.24ms. Allocated memory is still 259.0MB. Free memory was 228.3MB in the beginning and 227.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 20:32:03,681 INFO L158 Benchmark]: RCFGBuilder took 245.15ms. Allocated memory is still 259.0MB. Free memory was 227.3MB in the beginning and 215.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 20:32:03,681 INFO L158 Benchmark]: TraceAbstraction took 1247.13ms. Allocated memory is still 259.0MB. Free memory was 214.7MB in the beginning and 149.7MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. [2022-03-15 20:32:03,686 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 196.1MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 160.10ms. Allocated memory was 196.1MB in the beginning and 259.0MB in the end (delta: 62.9MB). Free memory was 137.9MB in the beginning and 229.9MB in the end (delta: -92.0MB). Peak memory consumption was 5.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.47ms. Allocated memory is still 259.0MB. Free memory was 229.9MB in the beginning and 228.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.24ms. Allocated memory is still 259.0MB. Free memory was 228.3MB in the beginning and 227.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 245.15ms. Allocated memory is still 259.0MB. Free memory was 227.3MB in the beginning and 215.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1247.13ms. Allocated memory is still 259.0MB. Free memory was 214.7MB in the beginning and 149.7MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8s, 34 PlacesBefore, 11 PlacesAfterwards, 30 TransitionsBefore, 7 TransitionsAfterwards, 90 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 24 TotalNumberOfCompositions, 101 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 49, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 80, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 49, unknown conditional: 0, unknown unconditional: 49] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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: 19]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 0; [L16] 0 int y; [L24] 0 pthread_t threadId; [L25] 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, y=0] [L28] 0 x = x + 1 [L29] COND TRUE 0 x != y VAL [arg={0:0}, threadId={2:0}, x=1, y=0] [L19] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=1, y=0] - UnprovableResult [Line: 25]: 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, 38 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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! [2022-03-15 20:32:03,712 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...