/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/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 18:10:25,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 18:10:25,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 18:10:25,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 18:10:25,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 18:10:25,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 18:10:25,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 18:10:25,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 18:10:25,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 18:10:25,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 18:10:25,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 18:10:25,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 18:10:25,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 18:10:25,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 18:10:25,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 18:10:25,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 18:10:25,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 18:10:25,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 18:10:25,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 18:10:25,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 18:10:25,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 18:10:25,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 18:10:25,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 18:10:25,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 18:10:25,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 18:10:25,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 18:10:25,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 18:10:25,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 18:10:25,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 18:10:25,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 18:10:25,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 18:10:25,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 18:10:25,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 18:10:25,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 18:10:25,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 18:10:25,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 18:10:25,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 18:10:25,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 18:10:25,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 18:10:25,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 18:10:25,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 18:10:25,216 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 18:10:25,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 18:10:25,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 18:10:25,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 18:10:25,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 18:10:25,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 18:10:25,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 18:10:25,246 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 18:10:25,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 18:10:25,246 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 18:10:25,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 18:10:25,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 18:10:25,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 18:10:25,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 18:10:25,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 18:10:25,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 18:10:25,248 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 18:10:25,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 18:10:25,248 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 18:10:25,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 18:10:25,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 18:10:25,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 18:10:25,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 18:10:25,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 18:10:25,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:10:25,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 18:10:25,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 18:10:25,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 18:10:25,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 18:10:25,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 18:10:25,250 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 18:10:25,250 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 18:10:25,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 18:10:25,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 18:10:25,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 18:10:25,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 18:10:25,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 18:10:25,463 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 18:10:25,464 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 18:10:25,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-03-15 18:10:25,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e143c2939/b1e368622d5d42bd9fef2fa79adc9c11/FLAG0e1159da6 [2022-03-15 18:10:25,905 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 18:10:25,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2022-03-15 18:10:25,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e143c2939/b1e368622d5d42bd9fef2fa79adc9c11/FLAG0e1159da6 [2022-03-15 18:10:25,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e143c2939/b1e368622d5d42bd9fef2fa79adc9c11 [2022-03-15 18:10:25,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 18:10:25,926 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 18:10:25,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 18:10:25,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 18:10:25,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 18:10:25,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:10:25" (1/1) ... [2022-03-15 18:10:25,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9c12f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:25, skipping insertion in model container [2022-03-15 18:10:25,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:10:25" (1/1) ... [2022-03-15 18:10:25,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 18:10:25,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 18:10:26,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-03-15 18:10:26,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:10:26,226 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 18:10:26,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2022-03-15 18:10:26,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:10:26,288 INFO L208 MainTranslator]: Completed translation [2022-03-15 18:10:26,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26 WrapperNode [2022-03-15 18:10:26,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 18:10:26,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 18:10:26,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 18:10:26,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 18:10:26,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26" (1/1) ... [2022-03-15 18:10:26,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26" (1/1) ... [2022-03-15 18:10:26,335 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-03-15 18:10:26,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 18:10:26,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 18:10:26,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 18:10:26,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 18:10:26,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26" (1/1) ... [2022-03-15 18:10:26,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26" (1/1) ... [2022-03-15 18:10:26,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26" (1/1) ... [2022-03-15 18:10:26,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26" (1/1) ... [2022-03-15 18:10:26,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26" (1/1) ... [2022-03-15 18:10:26,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26" (1/1) ... [2022-03-15 18:10:26,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26" (1/1) ... [2022-03-15 18:10:26,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 18:10:26,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 18:10:26,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 18:10:26,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 18:10:26,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26" (1/1) ... [2022-03-15 18:10:26,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:10:26,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:10:26,396 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 18:10:26,414 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 18:10:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 18:10:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 18:10:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-15 18:10:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 18:10:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 18:10:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-15 18:10:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-15 18:10:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 18:10:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 18:10:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 18:10:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 18:10:26,434 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 18:10:26,544 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 18:10:26,546 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 18:10:26,673 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 18:10:26,677 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 18:10:26,677 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 18:10:26,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:10:26 BoogieIcfgContainer [2022-03-15 18:10:26,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 18:10:26,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 18:10:26,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 18:10:26,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 18:10:26,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 06:10:25" (1/3) ... [2022-03-15 18:10:26,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38edb903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:10:26, skipping insertion in model container [2022-03-15 18:10:26,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:26" (2/3) ... [2022-03-15 18:10:26,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38edb903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:10:26, skipping insertion in model container [2022-03-15 18:10:26,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:10:26" (3/3) ... [2022-03-15 18:10:26,684 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2022-03-15 18:10:26,687 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 18:10:26,687 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 18:10:26,687 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 18:10:26,687 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 18:10:26,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,713 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,713 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,714 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,714 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,714 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,716 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,717 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,719 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,720 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:26,723 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-15 18:10:26,751 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 18:10:26,756 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 18:10:26,756 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 18:10:26,763 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 18:10:26,769 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 71 transitions, 150 flow [2022-03-15 18:10:26,771 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 71 transitions, 150 flow [2022-03-15 18:10:26,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 150 flow [2022-03-15 18:10:26,797 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2022-03-15 18:10:26,797 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-03-15 18:10:26,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 1/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-03-15 18:10:26,800 INFO L116 LiptonReduction]: Number of co-enabled transitions 448 [2022-03-15 18:10:28,449 INFO L131 LiptonReduction]: Checked pairs total: 1116 [2022-03-15 18:10:28,449 INFO L133 LiptonReduction]: Total number of compositions: 58 [2022-03-15 18:10:28,459 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 17 transitions, 42 flow [2022-03-15 18:10:28,473 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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 18:10:28,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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 18:10:28,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-03-15 18:10:28,478 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:28,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-03-15 18:10:28,478 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 18:10:28,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:28,481 INFO L85 PathProgramCache]: Analyzing trace with hash 7669551, now seen corresponding path program 1 times [2022-03-15 18:10:28,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:28,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135352160] [2022-03-15 18:10:28,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:28,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:28,612 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 18:10:28,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:28,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135352160] [2022-03-15 18:10:28,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135352160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:28,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:28,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 18:10:28,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1934509164] [2022-03-15 18:10:28,615 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:28,616 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:28,623 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2022-03-15 18:10:28,623 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:28,625 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:28,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:10:28,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:28,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:10:28,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:10:28,645 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 18:10:28,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:28,666 INFO L93 Difference]: Finished difference Result 35 states and 52 transitions. [2022-03-15 18:10:28,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:10:28,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-03-15 18:10:28,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:28,673 INFO L225 Difference]: With dead ends: 35 [2022-03-15 18:10:28,673 INFO L226 Difference]: Without dead ends: 20 [2022-03-15 18:10:28,674 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 18:10:28,677 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:28,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:28,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-03-15 18:10:28,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-03-15 18:10:28,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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 18:10:28,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-03-15 18:10:28,702 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 4 [2022-03-15 18:10:28,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:28,702 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-03-15 18:10:28,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 18:10:28,705 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-03-15 18:10:28,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 18:10:28,709 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:28,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:10:28,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 18:10:28,710 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 18:10:28,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:28,711 INFO L85 PathProgramCache]: Analyzing trace with hash 850298226, now seen corresponding path program 1 times [2022-03-15 18:10:28,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:28,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694560234] [2022-03-15 18:10:28,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:28,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:28,773 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 18:10:28,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:28,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694560234] [2022-03-15 18:10:28,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694560234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:28,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:28,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 18:10:28,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1622676075] [2022-03-15 18:10:28,774 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:28,774 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:28,776 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2022-03-15 18:10:28,776 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:28,776 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:28,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 18:10:28,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:28,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 18:10:28,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:10:28,777 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 18:10:28,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:28,792 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-03-15 18:10:28,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 18:10:28,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-03-15 18:10:28,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:28,792 INFO L225 Difference]: With dead ends: 12 [2022-03-15 18:10:28,792 INFO L226 Difference]: Without dead ends: 9 [2022-03-15 18:10:28,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:10:28,793 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:28,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:28,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-03-15 18:10:28,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-03-15 18:10:28,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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 18:10:28,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-03-15 18:10:28,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2022-03-15 18:10:28,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:28,795 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-03-15 18:10:28,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 18:10:28,795 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-03-15 18:10:28,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-15 18:10:28,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:28,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:10:28,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 18:10:28,796 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 18:10:28,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:28,796 INFO L85 PathProgramCache]: Analyzing trace with hash 623440383, now seen corresponding path program 1 times [2022-03-15 18:10:28,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:28,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663104892] [2022-03-15 18:10:28,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:28,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 18:10:28,820 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 18:10:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 18:10:28,844 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 18:10:28,844 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 18:10:28,845 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-03-15 18:10:28,846 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-15 18:10:28,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 18:10:28,847 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-03-15 18:10:28,850 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 18:10:28,850 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 18:10:28,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 06:10:28 BasicIcfg [2022-03-15 18:10:28,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 18:10:28,863 INFO L158 Benchmark]: Toolchain (without parser) took 2936.92ms. Allocated memory was 198.2MB in the beginning and 283.1MB in the end (delta: 84.9MB). Free memory was 140.8MB in the beginning and 215.4MB in the end (delta: -74.6MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. [2022-03-15 18:10:28,864 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 198.2MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 18:10:28,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.51ms. Allocated memory was 198.2MB in the beginning and 283.1MB in the end (delta: 84.9MB). Free memory was 140.7MB in the beginning and 245.8MB in the end (delta: -105.2MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-03-15 18:10:28,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.90ms. Allocated memory is still 283.1MB. Free memory was 245.8MB in the beginning and 243.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 18:10:28,864 INFO L158 Benchmark]: Boogie Preprocessor took 29.73ms. Allocated memory is still 283.1MB. Free memory was 243.7MB in the beginning and 242.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 18:10:28,864 INFO L158 Benchmark]: RCFGBuilder took 312.59ms. Allocated memory is still 283.1MB. Free memory was 242.2MB in the beginning and 229.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 18:10:28,865 INFO L158 Benchmark]: TraceAbstraction took 2183.10ms. Allocated memory is still 283.1MB. Free memory was 228.5MB in the beginning and 215.4MB in the end (delta: 13.2MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. [2022-03-15 18:10:28,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 198.2MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 361.51ms. Allocated memory was 198.2MB in the beginning and 283.1MB in the end (delta: 84.9MB). Free memory was 140.7MB in the beginning and 245.8MB in the end (delta: -105.2MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.90ms. Allocated memory is still 283.1MB. Free memory was 245.8MB in the beginning and 243.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.73ms. Allocated memory is still 283.1MB. Free memory was 243.7MB in the beginning and 242.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 312.59ms. Allocated memory is still 283.1MB. Free memory was 242.2MB in the beginning and 229.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2183.10ms. Allocated memory is still 283.1MB. Free memory was 228.5MB in the beginning and 215.4MB in the end (delta: 13.2MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 74 PlacesBefore, 21 PlacesAfterwards, 71 TransitionsBefore, 17 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 1116 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 546, positive: 417, positive conditional: 0, positive unconditional: 417, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 259, positive: 228, positive conditional: 0, positive unconditional: 228, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 546, positive: 189, positive conditional: 0, positive unconditional: 189, negative: 98, negative conditional: 0, negative unconditional: 98, unknown: 259, unknown conditional: 0, unknown unconditional: 259] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - 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]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: 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, 87 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 4 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 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! [2022-03-15 18:10:28,903 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...