/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-After.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 12:30:44,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 12:30:44,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 12:30:44,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 12:30:44,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 12:30:44,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 12:30:44,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 12:30:44,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 12:30:44,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 12:30:44,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 12:30:44,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 12:30:44,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 12:30:44,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 12:30:44,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 12:30:44,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 12:30:44,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 12:30:44,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 12:30:44,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 12:30:44,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 12:30:44,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 12:30:44,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 12:30:44,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 12:30:44,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 12:30:44,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 12:30:44,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 12:30:44,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 12:30:44,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 12:30:44,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 12:30:44,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 12:30:44,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 12:30:44,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 12:30:44,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 12:30:44,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 12:30:44,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 12:30:44,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 12:30:44,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 12:30:44,920 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-After.epf [2022-01-19 12:30:44,949 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 12:30:44,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 12:30:44,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 12:30:44,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 12:30:44,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 12:30:44,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 12:30:44,951 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 12:30:44,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 12:30:44,951 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 12:30:44,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 12:30:44,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 12:30:44,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 12:30:44,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 12:30:44,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 12:30:44,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 12:30:44,952 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 12:30:44,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 12:30:44,952 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 12:30:44,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 12:30:44,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 12:30:44,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 12:30:44,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 12:30:44,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 12:30:44,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 12:30:44,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 12:30:44,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 12:30:44,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 12:30:44,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 12:30:44,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 12:30:44,954 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 12:30:44,954 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 12:30:44,954 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 12:30:44,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 12:30:45,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 12:30:45,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 12:30:45,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 12:30:45,210 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 12:30:45,211 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 12:30:45,212 INFO L432 ainManager$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 12:30:45,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ede424e1e/c1beff3e24e6459e9e2c429fc5f9371a/FLAG3ceec0de4 [2022-01-19 12:30:45,723 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 12:30:45,723 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i [2022-01-19 12:30:45,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ede424e1e/c1beff3e24e6459e9e2c429fc5f9371a/FLAG3ceec0de4 [2022-01-19 12:30:45,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ede424e1e/c1beff3e24e6459e9e2c429fc5f9371a [2022-01-19 12:30:45,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 12:30:45,753 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 12:30:45,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 12:30:45,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 12:30:45,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 12:30:45,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:30:45" (1/1) ... [2022-01-19 12:30:45,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef9fa38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:45, skipping insertion in model container [2022-01-19 12:30:45,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:30:45" (1/1) ... [2022-01-19 12:30:45,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 12:30:45,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 12:30:45,947 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 12:30:46,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 12:30:46,107 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 12:30:46,117 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 12:30:46,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 12:30:46,172 INFO L208 MainTranslator]: Completed translation [2022-01-19 12:30:46,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46 WrapperNode [2022-01-19 12:30:46,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 12:30:46,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 12:30:46,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 12:30:46,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 12:30:46,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46" (1/1) ... [2022-01-19 12:30:46,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46" (1/1) ... [2022-01-19 12:30:46,227 INFO L137 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-01-19 12:30:46,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 12:30:46,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 12:30:46,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 12:30:46,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 12:30:46,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46" (1/1) ... [2022-01-19 12:30:46,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46" (1/1) ... [2022-01-19 12:30:46,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46" (1/1) ... [2022-01-19 12:30:46,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46" (1/1) ... [2022-01-19 12:30:46,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46" (1/1) ... [2022-01-19 12:30:46,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46" (1/1) ... [2022-01-19 12:30:46,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46" (1/1) ... [2022-01-19 12:30:46,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 12:30:46,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 12:30:46,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 12:30:46,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 12:30:46,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46" (1/1) ... [2022-01-19 12:30:46,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 12:30:46,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:30:46,288 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 12:30:46,315 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 12:30:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 12:30:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 12:30:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 12:30:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 12:30:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-19 12:30:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-19 12:30:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 12:30:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 12:30:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 12:30:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 12:30:46,338 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 12:30:46,417 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 12:30:46,418 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 12:30:46,565 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 12:30:46,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 12:30:46,571 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 12:30:46,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:30:46 BoogieIcfgContainer [2022-01-19 12:30:46,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 12:30:46,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 12:30:46,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 12:30:46,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 12:30:46,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 12:30:45" (1/3) ... [2022-01-19 12:30:46,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526895c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:30:46, skipping insertion in model container [2022-01-19 12:30:46,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:30:46" (2/3) ... [2022-01-19 12:30:46,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526895c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:30:46, skipping insertion in model container [2022-01-19 12:30:46,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:30:46" (3/3) ... [2022-01-19 12:30:46,579 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_11-traces-max-simple_true.i [2022-01-19 12:30:46,583 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 12:30:46,583 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-19 12:30:46,583 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 12:30:46,602 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,602 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,603 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,603 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,603 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,603 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,603 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,603 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,604 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,604 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,604 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,604 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,605 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,605 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,605 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,605 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,605 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,605 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,606 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,606 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,606 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,606 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,606 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,606 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,607 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,607 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,607 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,607 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,610 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,611 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:30:46,612 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 12:30:46,665 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 12:30:46,671 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 12:30:46,671 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 12:30:46,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 68 transitions, 141 flow [2022-01-19 12:30:46,705 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2022-01-19 12:30:46,705 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 12:30:46,708 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 12:30:46,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 68 transitions, 141 flow [2022-01-19 12:30:46,712 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 67 transitions, 137 flow [2022-01-19 12:30:46,724 INFO L129 PetriNetUnfolder]: 1/50 cut-off events. [2022-01-19 12:30:46,724 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 12:30:46,724 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:30:46,725 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 12:30:46,725 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 12:30:46,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:30:46,730 INFO L85 PathProgramCache]: Analyzing trace with hash 2005908045, now seen corresponding path program 1 times [2022-01-19 12:30:46,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:30:46,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098579299] [2022-01-19 12:30:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:30:46,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:30:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:30:46,998 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 12:30:46,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:30:46,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098579299] [2022-01-19 12:30:47,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098579299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:30:47,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:30:47,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 12:30:47,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45843897] [2022-01-19 12:30:47,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:30:47,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 12:30:47,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:30:47,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 12:30:47,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 12:30:47,036 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 68 [2022-01-19 12:30:47,039 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 12:30:47,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:30:47,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 68 [2022-01-19 12:30:47,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:30:47,111 INFO L129 PetriNetUnfolder]: 10/91 cut-off events. [2022-01-19 12:30:47,111 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 12:30:47,111 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 12:30:47,113 INFO L132 encePairwiseOnDemand]: 63/68 looper letters, 12 selfloop transitions, 3 changer transitions 9/67 dead transitions. [2022-01-19 12:30:47,113 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 67 transitions, 167 flow [2022-01-19 12:30:47,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 12:30:47,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 12:30:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 290 transitions. [2022-01-19 12:30:47,133 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8529411764705882 [2022-01-19 12:30:47,134 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 290 transitions. [2022-01-19 12:30:47,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 290 transitions. [2022-01-19 12:30:47,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:30:47,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 290 transitions. [2022-01-19 12:30:47,148 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 12:30:47,157 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 12:30:47,158 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 12:30:47,159 INFO L186 Difference]: Start difference. First operand has 69 places, 67 transitions, 137 flow. Second operand 5 states and 290 transitions. [2022-01-19 12:30:47,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 67 transitions, 167 flow [2022-01-19 12:30:47,162 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 12:30:47,164 INFO L242 Difference]: Finished difference. Result has 68 places, 52 transitions, 112 flow [2022-01-19 12:30:47,166 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 12:30:47,169 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, -1 predicate places. [2022-01-19 12:30:47,169 INFO L470 AbstractCegarLoop]: Abstraction has has 68 places, 52 transitions, 112 flow [2022-01-19 12:30:47,170 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 12:30:47,170 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:30:47,171 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 12:30:47,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 12:30:47,171 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 12:30:47,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:30:47,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1512868232, now seen corresponding path program 1 times [2022-01-19 12:30:47,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:30:47,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925825828] [2022-01-19 12:30:47,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:30:47,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:30:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:30:47,294 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 12:30:47,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:30:47,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925825828] [2022-01-19 12:30:47,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925825828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:30:47,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:30:47,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 12:30:47,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061317838] [2022-01-19 12:30:47,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:30:47,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 12:30:47,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:30:47,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 12:30:47,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 12:30:47,300 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 68 [2022-01-19 12:30:47,300 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 12:30:47,300 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:30:47,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 68 [2022-01-19 12:30:47,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:30:47,391 INFO L129 PetriNetUnfolder]: 16/118 cut-off events. [2022-01-19 12:30:47,391 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-01-19 12:30:47,391 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 12:30:47,392 INFO L132 encePairwiseOnDemand]: 62/68 looper letters, 11 selfloop transitions, 2 changer transitions 18/70 dead transitions. [2022-01-19 12:30:47,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 232 flow [2022-01-19 12:30:47,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 12:30:47,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 12:30:47,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 483 transitions. [2022-01-19 12:30:47,399 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7892156862745098 [2022-01-19 12:30:47,399 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 483 transitions. [2022-01-19 12:30:47,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 483 transitions. [2022-01-19 12:30:47,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:30:47,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 483 transitions. [2022-01-19 12:30:47,401 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 12:30:47,403 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 12:30:47,403 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 12:30:47,403 INFO L186 Difference]: Start difference. First operand has 68 places, 52 transitions, 112 flow. Second operand 9 states and 483 transitions. [2022-01-19 12:30:47,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 232 flow [2022-01-19 12:30:47,404 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 12:30:47,405 INFO L242 Difference]: Finished difference. Result has 71 places, 52 transitions, 127 flow [2022-01-19 12:30:47,406 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 12:30:47,406 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 2 predicate places. [2022-01-19 12:30:47,407 INFO L470 AbstractCegarLoop]: Abstraction has has 71 places, 52 transitions, 127 flow [2022-01-19 12:30:47,407 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 12:30:47,407 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:30:47,407 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 12:30:47,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 12:30:47,407 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 12:30:47,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:30:47,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1154435730, now seen corresponding path program 1 times [2022-01-19 12:30:47,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:30:47,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015869558] [2022-01-19 12:30:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:30:47,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:30:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:30:47,479 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 12:30:47,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:30:47,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015869558] [2022-01-19 12:30:47,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015869558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:30:47,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:30:47,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 12:30:47,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46403501] [2022-01-19 12:30:47,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:30:47,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 12:30:47,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:30:47,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 12:30:47,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 12:30:47,483 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 68 [2022-01-19 12:30:47,483 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 12:30:47,483 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:30:47,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 68 [2022-01-19 12:30:47,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:30:47,499 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2022-01-19 12:30:47,499 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 12:30:47,499 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 12:30:47,500 INFO L132 encePairwiseOnDemand]: 66/68 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2022-01-19 12:30:47,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 35 transitions, 93 flow [2022-01-19 12:30:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 12:30:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 12:30:47,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2022-01-19 12:30:47,501 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-01-19 12:30:47,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 170 transitions. [2022-01-19 12:30:47,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 170 transitions. [2022-01-19 12:30:47,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:30:47,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 170 transitions. [2022-01-19 12:30:47,502 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 12:30:47,503 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 12:30:47,504 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 12:30:47,504 INFO L186 Difference]: Start difference. First operand has 71 places, 52 transitions, 127 flow. Second operand 3 states and 170 transitions. [2022-01-19 12:30:47,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 35 transitions, 93 flow [2022-01-19 12:30:47,504 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 12:30:47,505 INFO L242 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2022-01-19 12:30:47,505 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 12:30:47,506 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, -22 predicate places. [2022-01-19 12:30:47,506 INFO L470 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2022-01-19 12:30:47,506 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 12:30:47,509 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 12:30:47,510 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 12:30:47,510 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-19 12:30:47,510 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-19 12:30:47,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 12:30:47,514 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-19 12:30:47,517 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 12:30:47,517 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 12:30:47,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 12:30:47 BasicIcfg [2022-01-19 12:30:47,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 12:30:47,521 INFO L158 Benchmark]: Toolchain (without parser) took 1767.94ms. Allocated memory is still 373.3MB. Free memory was 318.8MB in the beginning and 257.8MB in the end (delta: 61.0MB). Peak memory consumption was 60.0MB. Max. memory is 16.0GB. [2022-01-19 12:30:47,521 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 336.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 12:30:47,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.38ms. Allocated memory is still 373.3MB. Free memory was 318.6MB in the beginning and 337.5MB in the end (delta: -18.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.0GB. [2022-01-19 12:30:47,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.93ms. Allocated memory is still 373.3MB. Free memory was 337.5MB in the beginning and 335.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 12:30:47,523 INFO L158 Benchmark]: Boogie Preprocessor took 29.34ms. Allocated memory is still 373.3MB. Free memory was 335.4MB in the beginning and 334.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 12:30:47,523 INFO L158 Benchmark]: RCFGBuilder took 314.53ms. Allocated memory is still 373.3MB. Free memory was 334.3MB in the beginning and 321.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-19 12:30:47,524 INFO L158 Benchmark]: TraceAbstraction took 947.17ms. Allocated memory is still 373.3MB. Free memory was 320.7MB in the beginning and 257.8MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.0GB. [2022-01-19 12:30:47,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 336.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 419.38ms. Allocated memory is still 373.3MB. Free memory was 318.6MB in the beginning and 337.5MB in the end (delta: -18.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.93ms. Allocated memory is still 373.3MB. Free memory was 337.5MB in the beginning and 335.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.34ms. Allocated memory is still 373.3MB. Free memory was 335.4MB in the beginning and 334.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 314.53ms. Allocated memory is still 373.3MB. Free memory was 334.3MB in the beginning and 321.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 947.17ms. Allocated memory is still 373.3MB. Free memory was 320.7MB in the beginning and 257.8MB in the end (delta: 62.9MB). 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: 0.9s, 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, 0.0s 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, 0.1s SatisfiabilityAnalysisTime, 0.3s 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 12:30:47,566 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...