/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 06:35:56,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 06:35:56,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 06:35:56,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 06:35:56,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 06:35:56,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 06:35:56,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 06:35:56,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 06:35:56,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 06:35:56,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 06:35:56,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 06:35:56,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 06:35:56,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 06:35:56,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 06:35:56,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 06:35:56,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 06:35:56,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 06:35:56,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 06:35:56,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 06:35:56,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 06:35:56,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 06:35:56,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 06:35:56,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 06:35:56,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 06:35:56,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 06:35:56,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 06:35:56,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 06:35:56,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 06:35:56,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 06:35:56,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 06:35:56,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 06:35:56,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 06:35:56,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 06:35:56,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 06:35:56,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 06:35:56,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 06:35:56,790 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-NoLbe-Before.epf [2022-01-19 06:35:56,820 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 06:35:56,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 06:35:56,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 06:35:56,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 06:35:56,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 06:35:56,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 06:35:56,821 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 06:35:56,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 06:35:56,822 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 06:35:56,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 06:35:56,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 06:35:56,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 06:35:56,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 06:35:56,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 06:35:56,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 06:35:56,823 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 06:35:56,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 06:35:56,823 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 06:35:56,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 06:35:56,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 06:35:56,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 06:35:56,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 06:35:56,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 06:35:56,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 06:35:56,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 06:35:56,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 06:35:56,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 06:35:56,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 06:35:56,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 06:35:56,828 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 06:35:56,828 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 06:35:56,828 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 06:35:56,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 06:35:57,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 06:35:57,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 06:35:57,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 06:35:57,053 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 06:35:57,061 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 06:35:57,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i [2022-01-19 06:35:57,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc6749949/4a5979c3926b4733b4e383eee86e25d9/FLAG827cf5846 [2022-01-19 06:35:57,582 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 06:35:57,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i [2022-01-19 06:35:57,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc6749949/4a5979c3926b4733b4e383eee86e25d9/FLAG827cf5846 [2022-01-19 06:35:57,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc6749949/4a5979c3926b4733b4e383eee86e25d9 [2022-01-19 06:35:57,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 06:35:57,932 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 06:35:57,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 06:35:57,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 06:35:57,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 06:35:57,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 06:35:57" (1/1) ... [2022-01-19 06:35:57,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c116d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:57, skipping insertion in model container [2022-01-19 06:35:57,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 06:35:57" (1/1) ... [2022-01-19 06:35:57,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 06:35:57,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 06:35:58,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i[1089,1102] [2022-01-19 06:35:58,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 06:35:58,209 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 06:35:58,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i[1089,1102] [2022-01-19 06:35:58,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 06:35:58,273 INFO L208 MainTranslator]: Completed translation [2022-01-19 06:35:58,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58 WrapperNode [2022-01-19 06:35:58,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 06:35:58,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 06:35:58,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 06:35:58,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 06:35:58,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58" (1/1) ... [2022-01-19 06:35:58,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58" (1/1) ... [2022-01-19 06:35:58,314 INFO L137 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-01-19 06:35:58,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 06:35:58,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 06:35:58,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 06:35:58,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 06:35:58,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58" (1/1) ... [2022-01-19 06:35:58,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58" (1/1) ... [2022-01-19 06:35:58,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58" (1/1) ... [2022-01-19 06:35:58,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58" (1/1) ... [2022-01-19 06:35:58,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58" (1/1) ... [2022-01-19 06:35:58,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58" (1/1) ... [2022-01-19 06:35:58,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58" (1/1) ... [2022-01-19 06:35:58,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 06:35:58,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 06:35:58,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 06:35:58,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 06:35:58,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58" (1/1) ... [2022-01-19 06:35:58,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 06:35:58,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:35:58,368 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) [2022-01-19 06:35:58,387 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 [2022-01-19 06:35:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 06:35:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 06:35:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 06:35:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 06:35:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-19 06:35:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-19 06:35:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 06:35:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 06:35:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 06:35:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 06:35:58,395 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 06:35:58,472 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 06:35:58,473 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 06:35:58,587 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 06:35:58,592 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 06:35:58,592 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 06:35:58,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 06:35:58 BoogieIcfgContainer [2022-01-19 06:35:58,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 06:35:58,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 06:35:58,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 06:35:58,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 06:35:58,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 06:35:57" (1/3) ... [2022-01-19 06:35:58,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b35ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 06:35:58, skipping insertion in model container [2022-01-19 06:35:58,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:35:58" (2/3) ... [2022-01-19 06:35:58,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b35ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 06:35:58, skipping insertion in model container [2022-01-19 06:35:58,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 06:35:58" (3/3) ... [2022-01-19 06:35:58,600 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_11-traces-max-simple_true.i [2022-01-19 06:35:58,604 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 06:35:58,605 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-19 06:35:58,605 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 06:35:58,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,639 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,640 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,641 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,641 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,641 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,641 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,642 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,643 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,643 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,644 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,644 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,644 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,644 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,645 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,645 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,645 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,645 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,648 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,649 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:35:58,661 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 06:35:58,697 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 06:35:58,702 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=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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 06:35:58,702 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 06:35:58,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 68 transitions, 141 flow [2022-01-19 06:35:58,737 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2022-01-19 06:35:58,737 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 06:35:58,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2022-01-19 06:35:58,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 68 transitions, 141 flow [2022-01-19 06:35:58,743 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 67 transitions, 137 flow [2022-01-19 06:35:58,754 INFO L129 PetriNetUnfolder]: 1/50 cut-off events. [2022-01-19 06:35:58,754 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 06:35:58,754 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:35:58,755 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:35:58,756 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 06:35:58,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:35:58,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2005908045, now seen corresponding path program 1 times [2022-01-19 06:35:58,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:35:58,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846341997] [2022-01-19 06:35:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:35:58,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:35:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:35:58,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:35:58,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:35:58,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846341997] [2022-01-19 06:35:58,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846341997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:35:58,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:35:58,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 06:35:58,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996880824] [2022-01-19 06:35:58,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:35:58,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 06:35:58,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:35:58,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 06:35:58,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 06:35:58,978 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 68 [2022-01-19 06:35:58,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 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) [2022-01-19 06:35:58,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:35:58,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 68 [2022-01-19 06:35:58,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:35:59,051 INFO L129 PetriNetUnfolder]: 10/91 cut-off events. [2022-01-19 06:35:59,051 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 06:35:59,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 91 events. 10/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 177 event pairs, 0 based on Foata normal form. 6/96 useless extension candidates. Maximal degree in co-relation 91. Up to 10 conditions per place. [2022-01-19 06:35:59,053 INFO L132 encePairwiseOnDemand]: 63/68 looper letters, 12 selfloop transitions, 3 changer transitions 9/67 dead transitions. [2022-01-19 06:35:59,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 67 transitions, 167 flow [2022-01-19 06:35:59,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 06:35:59,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 06:35:59,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 290 transitions. [2022-01-19 06:35:59,061 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8529411764705882 [2022-01-19 06:35:59,062 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 290 transitions. [2022-01-19 06:35:59,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 290 transitions. [2022-01-19 06:35:59,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:35:59,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 290 transitions. [2022-01-19 06:35:59,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 58.0) internal successors, (290), 5 states have internal predecessors, (290), 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) [2022-01-19 06:35:59,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 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) [2022-01-19 06:35:59,070 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 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) [2022-01-19 06:35:59,071 INFO L186 Difference]: Start difference. First operand has 69 places, 67 transitions, 137 flow. Second operand 5 states and 290 transitions. [2022-01-19 06:35:59,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 67 transitions, 167 flow [2022-01-19 06:35:59,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 67 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 06:35:59,074 INFO L242 Difference]: Finished difference. Result has 68 places, 52 transitions, 112 flow [2022-01-19 06:35:59,078 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=112, PETRI_PLACES=68, PETRI_TRANSITIONS=52} [2022-01-19 06:35:59,080 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, -1 predicate places. [2022-01-19 06:35:59,080 INFO L470 AbstractCegarLoop]: Abstraction has has 68 places, 52 transitions, 112 flow [2022-01-19 06:35:59,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 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) [2022-01-19 06:35:59,081 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:35:59,081 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:35:59,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 06:35:59,081 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 06:35:59,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:35:59,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1512868232, now seen corresponding path program 1 times [2022-01-19 06:35:59,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:35:59,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991417772] [2022-01-19 06:35:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:35:59,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:35:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:35:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:35:59,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:35:59,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991417772] [2022-01-19 06:35:59,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991417772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:35:59,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:35:59,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:35:59,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837704302] [2022-01-19 06:35:59,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:35:59,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:35:59,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:35:59,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:35:59,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:35:59,142 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 68 [2022-01-19 06:35:59,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 52 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 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) [2022-01-19 06:35:59,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:35:59,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 68 [2022-01-19 06:35:59,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:35:59,250 INFO L129 PetriNetUnfolder]: 16/118 cut-off events. [2022-01-19 06:35:59,250 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-01-19 06:35:59,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 118 events. 16/118 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 380 event pairs, 5 based on Foata normal form. 5/123 useless extension candidates. Maximal degree in co-relation 169. Up to 25 conditions per place. [2022-01-19 06:35:59,251 INFO L132 encePairwiseOnDemand]: 62/68 looper letters, 11 selfloop transitions, 2 changer transitions 18/70 dead transitions. [2022-01-19 06:35:59,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 232 flow [2022-01-19 06:35:59,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 06:35:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 06:35:59,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 483 transitions. [2022-01-19 06:35:59,255 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7892156862745098 [2022-01-19 06:35:59,255 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 483 transitions. [2022-01-19 06:35:59,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 483 transitions. [2022-01-19 06:35:59,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:35:59,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 483 transitions. [2022-01-19 06:35:59,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 53.666666666666664) internal successors, (483), 9 states have internal predecessors, (483), 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) [2022-01-19 06:35:59,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 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) [2022-01-19 06:35:59,263 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 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) [2022-01-19 06:35:59,263 INFO L186 Difference]: Start difference. First operand has 68 places, 52 transitions, 112 flow. Second operand 9 states and 483 transitions. [2022-01-19 06:35:59,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 232 flow [2022-01-19 06:35:59,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 70 transitions, 205 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 06:35:59,265 INFO L242 Difference]: Finished difference. Result has 71 places, 52 transitions, 127 flow [2022-01-19 06:35:59,266 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=127, PETRI_PLACES=71, PETRI_TRANSITIONS=52} [2022-01-19 06:35:59,266 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 2 predicate places. [2022-01-19 06:35:59,266 INFO L470 AbstractCegarLoop]: Abstraction has has 71 places, 52 transitions, 127 flow [2022-01-19 06:35:59,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 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) [2022-01-19 06:35:59,267 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:35:59,267 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 06:35:59,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 06:35:59,267 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 06:35:59,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:35:59,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1154435730, now seen corresponding path program 1 times [2022-01-19 06:35:59,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:35:59,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617297048] [2022-01-19 06:35:59,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:35:59,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:35:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:35:59,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 06:35:59,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:35:59,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617297048] [2022-01-19 06:35:59,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617297048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:35:59,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:35:59,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 06:35:59,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806068157] [2022-01-19 06:35:59,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:35:59,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 06:35:59,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:35:59,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 06:35:59,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 06:35:59,313 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 68 [2022-01-19 06:35:59,313 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 52 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2022-01-19 06:35:59,313 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:35:59,314 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 68 [2022-01-19 06:35:59,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:35:59,326 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2022-01-19 06:35:59,326 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 06:35:59,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 35 events. 0/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 2/37 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-01-19 06:35:59,327 INFO L132 encePairwiseOnDemand]: 66/68 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2022-01-19 06:35:59,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 35 transitions, 93 flow [2022-01-19 06:35:59,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 06:35:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 06:35:59,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2022-01-19 06:35:59,328 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-01-19 06:35:59,328 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 170 transitions. [2022-01-19 06:35:59,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 170 transitions. [2022-01-19 06:35:59,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:35:59,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 170 transitions. [2022-01-19 06:35:59,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2022-01-19 06:35:59,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 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) [2022-01-19 06:35:59,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 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) [2022-01-19 06:35:59,330 INFO L186 Difference]: Start difference. First operand has 71 places, 52 transitions, 127 flow. Second operand 3 states and 170 transitions. [2022-01-19 06:35:59,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 35 transitions, 93 flow [2022-01-19 06:35:59,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 35 transitions, 91 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 06:35:59,331 INFO L242 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2022-01-19 06:35:59,331 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2022-01-19 06:35:59,332 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, -22 predicate places. [2022-01-19 06:35:59,332 INFO L470 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2022-01-19 06:35:59,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2022-01-19 06:35:59,334 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 06:35:59,334 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 06:35:59,335 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-19 06:35:59,335 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-19 06:35:59,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 06:35:59,337 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-19 06:35:59,340 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 06:35:59,340 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 06:35:59,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 06:35:59 BasicIcfg [2022-01-19 06:35:59,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 06:35:59,344 INFO L158 Benchmark]: Toolchain (without parser) took 1411.75ms. Allocated memory was 354.4MB in the beginning and 461.4MB in the end (delta: 107.0MB). Free memory was 298.1MB in the beginning and 345.0MB in the end (delta: -46.8MB). Peak memory consumption was 61.1MB. Max. memory is 16.0GB. [2022-01-19 06:35:59,344 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 354.4MB. Free memory is still 316.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 06:35:59,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.65ms. Allocated memory was 354.4MB in the beginning and 461.4MB in the end (delta: 107.0MB). Free memory was 298.0MB in the beginning and 424.6MB in the end (delta: -126.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.0GB. [2022-01-19 06:35:59,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.25ms. Allocated memory is still 461.4MB. Free memory was 424.6MB in the beginning and 423.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 06:35:59,345 INFO L158 Benchmark]: Boogie Preprocessor took 26.06ms. Allocated memory is still 461.4MB. Free memory was 423.1MB in the beginning and 421.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 06:35:59,345 INFO L158 Benchmark]: RCFGBuilder took 252.07ms. Allocated memory is still 461.4MB. Free memory was 421.8MB in the beginning and 409.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-19 06:35:59,346 INFO L158 Benchmark]: TraceAbstraction took 748.81ms. Allocated memory is still 461.4MB. Free memory was 408.5MB in the beginning and 345.0MB in the end (delta: 63.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.0GB. [2022-01-19 06:35:59,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 354.4MB. Free memory is still 316.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 340.65ms. Allocated memory was 354.4MB in the beginning and 461.4MB in the end (delta: 107.0MB). Free memory was 298.0MB in the beginning and 424.6MB in the end (delta: -126.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 40.25ms. Allocated memory is still 461.4MB. Free memory was 424.6MB in the beginning and 423.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.06ms. Allocated memory is still 461.4MB. Free memory was 423.1MB in the beginning and 421.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 252.07ms. Allocated memory is still 461.4MB. Free memory was 421.8MB in the beginning and 409.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 748.81ms. Allocated memory is still 461.4MB. Free memory was 408.5MB in the beginning and 345.0MB in the end (delta: 63.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 with 1 thread instances CFG has 3 procedures, 85 locations, 4 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: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 26 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 06:35:59,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...