/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 19:03:28,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 19:03:28,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 19:03:29,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 19:03:29,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 19:03:29,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 19:03:29,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 19:03:29,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 19:03:29,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 19:03:29,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 19:03:29,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 19:03:29,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 19:03:29,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 19:03:29,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 19:03:29,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 19:03:29,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 19:03:29,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 19:03:29,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 19:03:29,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 19:03:29,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 19:03:29,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 19:03:29,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 19:03:29,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 19:03:29,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 19:03:29,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 19:03:29,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 19:03:29,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 19:03:29,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 19:03:29,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 19:03:29,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 19:03:29,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 19:03:29,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 19:03:29,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 19:03:29,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 19:03:29,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 19:03:29,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 19:03:29,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 19:03:29,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 19:03:29,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 19:03:29,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 19:03:29,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 19:03:29,062 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 19:03:29,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 19:03:29,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 19:03:29,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 19:03:29,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 19:03:29,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 19:03:29,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 19:03:29,089 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 19:03:29,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 19:03:29,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 19:03:29,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 19:03:29,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 19:03:29,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 19:03:29,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 19:03:29,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 19:03:29,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 19:03:29,090 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 19:03:29,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 19:03:29,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 19:03:29,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 19:03:29,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 19:03:29,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 19:03:29,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 19:03:29,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 19:03:29,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:03:29,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 19:03:29,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 19:03:29,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 19:03:29,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 19:03:29,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 19:03:29,091 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 19:03:29,091 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 19:03:29,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 19:03:29,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 19:03:29,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 19:03:29,378 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 19:03:29,378 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 19:03:29,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-12-12 19:03:30,349 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 19:03:30,550 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 19:03:30,551 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-12-12 19:03:30,559 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ebc9819/2f80e6a5b42a4e11a9c4b2ee05382fb4/FLAG019758fe8 [2022-12-12 19:03:30,570 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ebc9819/2f80e6a5b42a4e11a9c4b2ee05382fb4 [2022-12-12 19:03:30,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 19:03:30,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 19:03:30,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 19:03:30,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 19:03:30,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 19:03:30,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78de7644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30, skipping insertion in model container [2022-12-12 19:03:30,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 19:03:30,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 19:03:30,723 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-12-12 19:03:30,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:03:30,853 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 19:03:30,863 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-12-12 19:03:30,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:03:30,920 INFO L208 MainTranslator]: Completed translation [2022-12-12 19:03:30,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30 WrapperNode [2022-12-12 19:03:30,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 19:03:30,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 19:03:30,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 19:03:30,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 19:03:30,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,966 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-12-12 19:03:30,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 19:03:30,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 19:03:30,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 19:03:30,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 19:03:30,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,990 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 19:03:30,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 19:03:30,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 19:03:30,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 19:03:30,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (1/1) ... [2022-12-12 19:03:30,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:03:31,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 19:03:31,032 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) [2022-12-12 19:03:31,050 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 [2022-12-12 19:03:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 19:03:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 19:03:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 19:03:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 19:03:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 19:03:31,062 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 19:03:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 19:03:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 19:03:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 19:03:31,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 19:03:31,063 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 19:03:31,158 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 19:03:31,159 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 19:03:31,256 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 19:03:31,260 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 19:03:31,260 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 19:03:31,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:03:31 BoogieIcfgContainer [2022-12-12 19:03:31,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 19:03:31,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 19:03:31,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 19:03:31,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 19:03:31,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 07:03:30" (1/3) ... [2022-12-12 19:03:31,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263b5365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:03:31, skipping insertion in model container [2022-12-12 19:03:31,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:30" (2/3) ... [2022-12-12 19:03:31,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263b5365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:03:31, skipping insertion in model container [2022-12-12 19:03:31,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:03:31" (3/3) ... [2022-12-12 19:03:31,267 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-12-12 19:03:31,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 19:03:31,279 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 19:03:31,279 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 19:03:31,338 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 19:03:31,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 149 flow [2022-12-12 19:03:31,468 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-12 19:03:31,468 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:03:31,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-12-12 19:03:31,483 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 72 transitions, 149 flow [2022-12-12 19:03:31,486 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 125 flow [2022-12-12 19:03:31,488 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 19:03:31,501 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 125 flow [2022-12-12 19:03:31,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 125 flow [2022-12-12 19:03:31,537 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2022-12-12 19:03:31,537 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:03:31,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-12 19:03:31,539 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 61 transitions, 125 flow [2022-12-12 19:03:31,539 INFO L226 LiptonReduction]: Number of co-enabled transitions 360 [2022-12-12 19:03:33,987 INFO L241 LiptonReduction]: Total number of compositions: 50 [2022-12-12 19:03:34,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 19:03:34,007 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@30e689c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 19:03:34,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-12 19:03:34,010 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-12 19:03:34,010 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:03:34,010 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:03:34,010 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-12 19:03:34,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 19:03:34,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:03:34,014 INFO L85 PathProgramCache]: Analyzing trace with hash 7522086, now seen corresponding path program 1 times [2022-12-12 19:03:34,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:03:34,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700066148] [2022-12-12 19:03:34,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:03:34,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:03:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:03:34,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:03:34,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:03:34,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700066148] [2022-12-12 19:03:34,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700066148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:03:34,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:03:34,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 19:03:34,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912369581] [2022-12-12 19:03:34,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:03:34,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 19:03:34,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:03:34,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 19:03:34,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 19:03:34,256 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 18 [2022-12-12 19:03:34,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-12 19:03:34,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:03:34,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 18 [2022-12-12 19:03:34,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:03:34,295 INFO L130 PetriNetUnfolder]: 26/92 cut-off events. [2022-12-12 19:03:34,296 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:03:34,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 92 events. 26/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 337 event pairs, 14 based on Foata normal form. 3/78 useless extension candidates. Maximal degree in co-relation 161. Up to 45 conditions per place. [2022-12-12 19:03:34,297 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 17 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2022-12-12 19:03:34,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 24 transitions, 91 flow [2022-12-12 19:03:34,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 19:03:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 19:03:34,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2022-12-12 19:03:34,305 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2022-12-12 19:03:34,307 INFO L295 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places. [2022-12-12 19:03:34,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 24 transitions, 91 flow [2022-12-12 19:03:34,308 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 24 transitions, 91 flow [2022-12-12 19:03:34,309 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 24 transitions, 91 flow [2022-12-12 19:03:34,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-12 19:03:34,309 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:03:34,309 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:03:34,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 19:03:34,309 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 19:03:34,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:03:34,310 INFO L85 PathProgramCache]: Analyzing trace with hash 751440443, now seen corresponding path program 1 times [2022-12-12 19:03:34,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:03:34,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690195549] [2022-12-12 19:03:34,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:03:34,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:03:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 19:03:34,344 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 19:03:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 19:03:34,394 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 19:03:34,394 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 19:03:34,395 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-12 19:03:34,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-12 19:03:34,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 19:03:34,398 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-12 19:03:34,401 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 19:03:34,401 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 19:03:34,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 07:03:34 BasicIcfg [2022-12-12 19:03:34,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 19:03:34,422 INFO L158 Benchmark]: Toolchain (without parser) took 3849.40ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 153.2MB in the beginning and 100.6MB in the end (delta: 52.6MB). Peak memory consumption was 89.8MB. Max. memory is 8.0GB. [2022-12-12 19:03:34,422 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 179.3MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 19:03:34,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.44ms. Allocated memory is still 179.3MB. Free memory was 153.2MB in the beginning and 133.9MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 19:03:34,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.91ms. Allocated memory is still 179.3MB. Free memory was 133.9MB in the beginning and 132.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 19:03:34,425 INFO L158 Benchmark]: Boogie Preprocessor took 25.74ms. Allocated memory is still 179.3MB. Free memory was 132.2MB in the beginning and 130.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 19:03:34,427 INFO L158 Benchmark]: RCFGBuilder took 268.87ms. Allocated memory is still 179.3MB. Free memory was 130.7MB in the beginning and 117.6MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 19:03:34,427 INFO L158 Benchmark]: TraceAbstraction took 3158.14ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 116.5MB in the beginning and 100.6MB in the end (delta: 15.9MB). Peak memory consumption was 53.1MB. Max. memory is 8.0GB. [2022-12-12 19:03:34,429 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 179.3MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 348.44ms. Allocated memory is still 179.3MB. Free memory was 153.2MB in the beginning and 133.9MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.91ms. Allocated memory is still 179.3MB. Free memory was 133.9MB in the beginning and 132.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.74ms. Allocated memory is still 179.3MB. Free memory was 132.2MB in the beginning and 130.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 268.87ms. Allocated memory is still 179.3MB. Free memory was 130.7MB in the beginning and 117.6MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3158.14ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 116.5MB in the beginning and 100.6MB in the end (delta: 15.9MB). Peak memory consumption was 53.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 64 PlacesBefore, 21 PlacesAfterwards, 61 TransitionsBefore, 18 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 17 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 465, independent: 384, independent conditional: 384, independent unconditional: 0, dependent: 81, dependent conditional: 81, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 465, independent: 384, independent conditional: 0, independent unconditional: 384, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 465, independent: 384, independent conditional: 0, independent unconditional: 384, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 465, independent: 384, independent conditional: 0, independent unconditional: 384, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 304, independent: 270, independent conditional: 0, independent unconditional: 270, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 304, independent: 255, independent conditional: 0, independent unconditional: 255, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 136, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 465, independent: 114, independent conditional: 0, independent unconditional: 114, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 304, unknown conditional: 0, unknown unconditional: 304] , Statistics on independence cache: Total cache size (in pairs): 427, Positive cache size: 393, Positive conditional cache size: 0, Positive unconditional cache size: 393, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=1] [L700] COND TRUE 0 \read(r) [L701] 0 g = 17 VAL [A={3:0}, arg={0:0}, B={4:0}, g=17, id={5:0}, r=1] [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(!(t == 17)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=17] - 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, 83 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1 mSDtfsCounter, 20 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=91occurred in iteration=1, 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, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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! [2022-12-12 19:03:34,455 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...