/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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 03:09:19,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 03:09:19,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 03:09:19,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-25 03:09:19,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-25 03:09:19,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-25 03:09:19,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-25 03:09:19,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-25 03:09:19,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-25 03:09:19,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-25 03:09:19,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-25 03:09:19,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-25 03:09:19,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-25 03:09:19,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-25 03:09:19,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-25 03:09:19,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-25 03:09:19,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-25 03:09:19,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-25 03:09:19,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-25 03:09:19,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-25 03:09:19,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-25 03:09:19,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-25 03:09:19,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-25 03:09:19,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-25 03:09:19,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-25 03:09:19,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-25 03:09:19,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-25 03:09:19,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-25 03:09:19,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-25 03:09:19,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-25 03:09:19,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-25 03:09:19,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-25 03:09:19,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-25 03:09:19,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-25 03:09:19,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-25 03:09:19,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-25 03:09:19,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-25 03:09:19,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-25 03:09:19,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-25 03:09:19,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-25 03:09:19,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-25 03:09:19,813 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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf [2021-10-25 03:09:19,831 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 03:09:19,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 03:09:19,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 03:09:19,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 03:09:19,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 03:09:19,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 03:09:19,832 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 03:09:19,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 03:09:19,833 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 03:09:19,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 03:09:19,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 03:09:19,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 03:09:19,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 03:09:19,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 03:09:19,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 03:09:19,833 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 03:09:19,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 03:09:19,833 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 03:09:19,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 03:09:19,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 03:09:19,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 03:09:19,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 03:09:19,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 03:09:19,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 03:09:19,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 03:09:19,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 03:09:19,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 03:09:19,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 03:09:19,834 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-25 03:09:19,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 03:09:19,834 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 03:09:19,835 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 03:09:19,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 03:09:19,835 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 03:09:19,835 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 03:09:19,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 03:09:19,835 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 [2021-10-25 03:09:19,835 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 03:09:19,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 03:09:19,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 03:09:19,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 03:09:19,996 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-25 03:09:19,996 INFO L275 PluginConnector]: CDTParser initialized [2021-10-25 03:09:19,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2021-10-25 03:09:20,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b8216fa3/dff78e16cccc46d4849d17920309fd34/FLAG4b5f04f08 [2021-10-25 03:09:20,464 INFO L306 CDTParser]: Found 1 translation units. [2021-10-25 03:09:20,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2021-10-25 03:09:20,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b8216fa3/dff78e16cccc46d4849d17920309fd34/FLAG4b5f04f08 [2021-10-25 03:09:20,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b8216fa3/dff78e16cccc46d4849d17920309fd34 [2021-10-25 03:09:20,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 03:09:20,486 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-25 03:09:20,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-25 03:09:20,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-25 03:09:20,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-25 03:09:20,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d14c6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20, skipping insertion in model container [2021-10-25 03:09:20,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-25 03:09:20,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-25 03:09:20,649 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i[950,963] [2021-10-25 03:09:20,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-25 03:09:20,757 INFO L203 MainTranslator]: Completed pre-run [2021-10-25 03:09:20,770 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i[950,963] [2021-10-25 03:09:20,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-25 03:09:20,836 INFO L208 MainTranslator]: Completed translation [2021-10-25 03:09:20,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20 WrapperNode [2021-10-25 03:09:20,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-25 03:09:20,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 03:09:20,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 03:09:20,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 03:09:20,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 03:09:20,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 03:09:20,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 03:09:20,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 03:09:20,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 03:09:20,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 03:09:20,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 03:09:20,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 03:09:20,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20" (1/1) ... [2021-10-25 03:09:20,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 03:09:20,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:09:20,962 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) [2021-10-25 03:09:20,983 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 [2021-10-25 03:09:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-25 03:09:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-25 03:09:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-25 03:09:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-25 03:09:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-25 03:09:20,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-25 03:09:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-25 03:09:20,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-25 03:09:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-25 03:09:20,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-25 03:09:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-25 03:09:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-25 03:09:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 03:09:20,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 03:09:21,000 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 03:09:21,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 03:09:21,288 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-25 03:09:21,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 03:09:21 BoogieIcfgContainer [2021-10-25 03:09:21,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 03:09:21,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 03:09:21,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 03:09:21,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 03:09:21,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 03:09:20" (1/3) ... [2021-10-25 03:09:21,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d386b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 03:09:21, skipping insertion in model container [2021-10-25 03:09:21,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 03:09:20" (2/3) ... [2021-10-25 03:09:21,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d386b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 03:09:21, skipping insertion in model container [2021-10-25 03:09:21,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 03:09:21" (3/3) ... [2021-10-25 03:09:21,299 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2021-10-25 03:09:21,302 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 03:09:21,302 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 03:09:21,302 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 03:09:21,303 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 03:09:21,324 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,325 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,325 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,325 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,325 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,325 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,326 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,326 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,326 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,326 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,326 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,326 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,327 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,327 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,328 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,328 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,328 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,328 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,328 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,328 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,329 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,330 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,331 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,332 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,335 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,335 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,335 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,336 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,337 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,349 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,353 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,354 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,354 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,355 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 03:09:21,358 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-25 03:09:21,392 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 03:09:21,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:09:21,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-25 03:09:21,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-25 03:09:21,414 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 03:09:21,418 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-25 03:09:21,419 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-25 03:09:21,548 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 03:09:21,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:09:21,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1274047898, now seen corresponding path program 1 times [2021-10-25 03:09:21,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:09:21,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212229448] [2021-10-25 03:09:21,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:09:21,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:09:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:09:21,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:09:21,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:09:21,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212229448] [2021-10-25 03:09:21,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212229448] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:09:21,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 03:09:21,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-25 03:09:21,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215861679] [2021-10-25 03:09:21,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-25 03:09:21,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:09:21,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-25 03:09:21,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-25 03:09:21,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:09:21,998 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:09:21,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 03:09:22,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:09:22,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 03:09:22,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-25 03:09:22,549 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 03:09:22,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:09:22,551 INFO L82 PathProgramCache]: Analyzing trace with hash -2101234942, now seen corresponding path program 2 times [2021-10-25 03:09:22,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:09:22,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176254907] [2021-10-25 03:09:22,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:09:22,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:09:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:09:22,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:09:22,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:09:22,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176254907] [2021-10-25 03:09:22,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176254907] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:09:22,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 03:09:22,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-25 03:09:22,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437121512] [2021-10-25 03:09:22,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 03:09:22,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:09:22,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 03:09:22,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-25 03:09:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:09:22,703 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:09:22,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 03:09:22,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 03:09:22,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:09:22,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 03:09:22,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:09:22,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-25 03:09:22,889 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 03:09:22,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:09:22,889 INFO L82 PathProgramCache]: Analyzing trace with hash 2126081978, now seen corresponding path program 3 times [2021-10-25 03:09:22,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:09:22,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838760705] [2021-10-25 03:09:22,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:09:22,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:09:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:09:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:09:23,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:09:23,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838760705] [2021-10-25 03:09:23,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838760705] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:09:23,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 03:09:23,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-25 03:09:23,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664563675] [2021-10-25 03:09:23,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 03:09:23,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:09:23,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 03:09:23,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-25 03:09:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:09:23,033 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:09:23,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 03:09:23,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 03:09:23,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:09:23,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:09:23,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 03:09:23,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 03:09:23,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 03:09:23,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-25 03:09:23,481 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 03:09:23,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:09:23,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1059211948, now seen corresponding path program 4 times [2021-10-25 03:09:23,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:09:23,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546698305] [2021-10-25 03:09:23,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:09:23,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:09:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:09:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:09:23,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:09:23,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546698305] [2021-10-25 03:09:23,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546698305] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:09:23,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 03:09:23,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-25 03:09:23,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654000098] [2021-10-25 03:09:23,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-25 03:09:23,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:09:23,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-25 03:09:23,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-25 03:09:23,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:09:23,552 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:09:23,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 03:09:23,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 03:09:23,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 03:09:23,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 03:09:23,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:09:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 03:09:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 03:09:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 03:09:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:09:23,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-25 03:09:23,658 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 03:09:23,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:09:23,658 INFO L82 PathProgramCache]: Analyzing trace with hash -301976236, now seen corresponding path program 5 times [2021-10-25 03:09:23,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:09:23,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953989417] [2021-10-25 03:09:23,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:09:23,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:09:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:09:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:09:23,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:09:23,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953989417] [2021-10-25 03:09:23,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953989417] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:09:23,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 03:09:23,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-25 03:09:23,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202000366] [2021-10-25 03:09:23,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-25 03:09:23,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:09:23,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-25 03:09:23,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-25 03:09:23,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:09:23,748 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:09:23,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 03:09:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 03:09:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 03:09:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 03:09:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:09:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:09:24,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 03:09:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 03:09:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 03:09:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:09:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 03:09:24,018 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-25 03:09:24,019 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 03:09:24,019 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-25 03:09:24,019 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-25 03:09:24,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-25 03:09:24,027 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-25 03:09:24,028 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-25 03:09:24,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 03:09:24 BasicIcfg [2021-10-25 03:09:24,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-25 03:09:24,030 INFO L168 Benchmark]: Toolchain (without parser) took 3543.35 ms. Allocated memory was 198.2 MB in the beginning and 454.0 MB in the end (delta: 255.9 MB). Free memory was 141.7 MB in the beginning and 393.5 MB in the end (delta: -251.8 MB). Peak memory consumption was 183.6 MB. Max. memory is 8.0 GB. [2021-10-25 03:09:24,031 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 198.2 MB. Free memory is still 159.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 03:09:24,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.45 ms. Allocated memory was 198.2 MB in the beginning and 338.7 MB in the end (delta: 140.5 MB). Free memory was 141.5 MB in the beginning and 300.7 MB in the end (delta: -159.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. [2021-10-25 03:09:24,032 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.49 ms. Allocated memory is still 338.7 MB. Free memory was 300.7 MB in the beginning and 298.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-25 03:09:24,033 INFO L168 Benchmark]: Boogie Preprocessor took 35.24 ms. Allocated memory is still 338.7 MB. Free memory was 298.8 MB in the beginning and 297.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-25 03:09:24,036 INFO L168 Benchmark]: RCFGBuilder took 367.96 ms. Allocated memory is still 338.7 MB. Free memory was 297.3 MB in the beginning and 274.0 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-10-25 03:09:24,038 INFO L168 Benchmark]: TraceAbstraction took 2736.29 ms. Allocated memory was 338.7 MB in the beginning and 454.0 MB in the end (delta: 115.3 MB). Free memory was 273.5 MB in the beginning and 393.5 MB in the end (delta: -120.1 MB). Peak memory consumption was 174.0 MB. Max. memory is 8.0 GB. [2021-10-25 03:09:24,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 198.2 MB. Free memory is still 159.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 349.45 ms. Allocated memory was 198.2 MB in the beginning and 338.7 MB in the end (delta: 140.5 MB). Free memory was 141.5 MB in the beginning and 300.7 MB in the end (delta: -159.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.49 ms. Allocated memory is still 338.7 MB. Free memory was 300.7 MB in the beginning and 298.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.24 ms. Allocated memory is still 338.7 MB. Free memory was 298.8 MB in the beginning and 297.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 367.96 ms. Allocated memory is still 338.7 MB. Free memory was 297.3 MB in the beginning and 274.0 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2736.29 ms. Allocated memory was 338.7 MB in the beginning and 454.0 MB in the end (delta: 115.3 MB). Free memory was 273.5 MB in the beginning and 393.5 MB in the end (delta: -120.1 MB). Peak memory consumption was 174.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 64437, positive: 61258, positive conditional: 59983, positive unconditional: 1275, negative: 3179, negative conditional: 3155, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 62056, positive: 61258, positive conditional: 0, positive unconditional: 61258, negative: 798, negative conditional: 0, negative unconditional: 798, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1317, positive: 1293, positive conditional: 0, positive unconditional: 1293, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1317, positive: 1287, positive conditional: 0, positive unconditional: 1287, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62056, positive: 59965, positive conditional: 0, positive unconditional: 59965, negative: 774, negative conditional: 0, negative unconditional: 774, unknown: 1317, unknown conditional: 0, unknown unconditional: 1317] , Statistics on independence cache: Total cache size (in pairs): 1317, Positive cache size: 1293, Positive conditional cache size: 0, Positive unconditional cache size: 1293, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Independence queries for same thread: 2381 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 276, Number of persistent set computation: 3083, Number of trivial persistent sets: 1940, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 64437, positive: 61258, positive conditional: 59983, positive unconditional: 1275, negative: 3179, negative conditional: 3155, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 62056, positive: 61258, positive conditional: 0, positive unconditional: 61258, negative: 798, negative conditional: 0, negative unconditional: 798, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1317, positive: 1293, positive conditional: 0, positive unconditional: 1293, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1317, positive: 1287, positive conditional: 0, positive unconditional: 1287, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62056, positive: 59965, positive conditional: 0, positive unconditional: 59965, negative: 774, negative conditional: 0, negative unconditional: 774, unknown: 1317, unknown conditional: 0, unknown unconditional: 1317] , Statistics on independence cache: Total cache size (in pairs): 1317, Positive cache size: 1293, Positive conditional cache size: 0, Positive unconditional cache size: 1293, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Independence queries for same thread: 2381 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 104 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2636.8ms, OverallIterations: 5, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.0ms, PartialOrderReductionTime: 1672.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.8ms SsaConstructionTime, 120.2ms SatisfiabilityAnalysisTime, 649.1ms InterpolantComputationTime, 325 NumberOfCodeBlocks, 325 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 1000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-25 03:09:24,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-25 03:09:24,278 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...