/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/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 11:56:59,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 11:56:59,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 11:57:00,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 11:57:00,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 11:57:00,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 11:57:00,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 11:57:00,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 11:57:00,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 11:57:00,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 11:57:00,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 11:57:00,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 11:57:00,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 11:57:00,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 11:57:00,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 11:57:00,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 11:57:00,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 11:57:00,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 11:57:00,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 11:57:00,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 11:57:00,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 11:57:00,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 11:57:00,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 11:57:00,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 11:57:00,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 11:57:00,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 11:57:00,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 11:57:00,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 11:57:00,052 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 11:57:00,078 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 11:57:00,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 11:57:00,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 11:57:00,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 11:57:00,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 11:57:00,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 11:57:00,080 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 11:57:00,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 11:57:00,080 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 11:57:00,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 11:57:00,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 11:57:00,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 11:57:00,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 11:57:00,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 11:57:00,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 11:57:00,081 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 11:57:00,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 11:57:00,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 11:57:00,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 11:57:00,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 11:57:00,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 11:57:00,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 11:57:00,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 11:57:00,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:57:00,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 11:57:00,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 11:57:00,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 11:57:00,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 11:57:00,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 11:57:00,083 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 11:57:00,084 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 11:57:00,084 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 11:57:00,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 11:57:00,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 11:57:00,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 11:57:00,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 11:57:00,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 11:57:00,286 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 11:57:00,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2022-01-19 11:57:00,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2afad651a/2a4e7ee8170941858235949024e5fe0d/FLAG39801e535 [2022-01-19 11:57:00,750 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 11:57:00,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2022-01-19 11:57:00,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2afad651a/2a4e7ee8170941858235949024e5fe0d/FLAG39801e535 [2022-01-19 11:57:00,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2afad651a/2a4e7ee8170941858235949024e5fe0d [2022-01-19 11:57:00,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 11:57:00,769 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 11:57:00,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 11:57:00,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 11:57:00,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 11:57:00,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:57:00" (1/1) ... [2022-01-19 11:57:00,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ae031b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:00, skipping insertion in model container [2022-01-19 11:57:00,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:57:00" (1/1) ... [2022-01-19 11:57:00,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 11:57:00,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 11:57:00,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] [2022-01-19 11:57:01,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:57:01,032 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 11:57:01,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] [2022-01-19 11:57:01,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:57:01,103 INFO L208 MainTranslator]: Completed translation [2022-01-19 11:57:01,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01 WrapperNode [2022-01-19 11:57:01,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 11:57:01,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 11:57:01,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 11:57:01,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 11:57:01,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01" (1/1) ... [2022-01-19 11:57:01,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01" (1/1) ... [2022-01-19 11:57:01,147 INFO L137 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2022-01-19 11:57:01,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 11:57:01,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 11:57:01,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 11:57:01,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 11:57:01,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01" (1/1) ... [2022-01-19 11:57:01,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01" (1/1) ... [2022-01-19 11:57:01,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01" (1/1) ... [2022-01-19 11:57:01,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01" (1/1) ... [2022-01-19 11:57:01,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01" (1/1) ... [2022-01-19 11:57:01,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01" (1/1) ... [2022-01-19 11:57:01,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01" (1/1) ... [2022-01-19 11:57:01,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 11:57:01,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 11:57:01,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 11:57:01,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 11:57:01,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01" (1/1) ... [2022-01-19 11:57:01,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:57:01,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 11:57:01,219 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 11:57:01,237 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 11:57:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 11:57:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 11:57:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 11:57:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 11:57:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-19 11:57:01,246 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-19 11:57:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 11:57:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 11:57:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 11:57:01,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 11:57:01,248 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 11:57:01,370 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 11:57:01,371 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 11:57:01,547 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 11:57:01,552 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 11:57:01,552 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 11:57:01,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:57:01 BoogieIcfgContainer [2022-01-19 11:57:01,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 11:57:01,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 11:57:01,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 11:57:01,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 11:57:01,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 11:57:00" (1/3) ... [2022-01-19 11:57:01,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66331e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:57:01, skipping insertion in model container [2022-01-19 11:57:01,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:57:01" (2/3) ... [2022-01-19 11:57:01,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66331e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:57:01, skipping insertion in model container [2022-01-19 11:57:01,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:57:01" (3/3) ... [2022-01-19 11:57:01,563 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2022-01-19 11:57:01,566 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 11:57:01,567 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 11:57:01,567 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 11:57:01,584 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,584 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,584 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,584 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,584 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,584 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,584 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,584 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,585 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,585 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,585 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,585 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,585 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,585 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,590 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,590 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,590 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,590 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,590 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,590 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,590 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,590 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:57:01,592 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 11:57:01,621 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 11:57:01,625 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 11:57:01,625 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 11:57:01,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 90 transitions, 185 flow [2022-01-19 11:57:01,660 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2022-01-19 11:57:01,661 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:57:01,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2022-01-19 11:57:01,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 90 transitions, 185 flow [2022-01-19 11:57:01,666 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 79 transitions, 161 flow [2022-01-19 11:57:01,680 INFO L129 PetriNetUnfolder]: 1/78 cut-off events. [2022-01-19 11:57:01,680 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:57:01,680 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:57:01,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:57:01,681 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 11:57:01,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:57:01,684 INFO L85 PathProgramCache]: Analyzing trace with hash 347770763, now seen corresponding path program 1 times [2022-01-19 11:57:01,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:57:01,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093780811] [2022-01-19 11:57:01,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:57:01,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:57:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:57:01,949 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 11:57:01,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:57:01,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093780811] [2022-01-19 11:57:01,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093780811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:57:01,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:57:01,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 11:57:01,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411393742] [2022-01-19 11:57:01,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:57:01,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 11:57:01,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:57:01,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 11:57:01,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 11:57:01,977 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 90 [2022-01-19 11:57:01,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 79 transitions, 161 flow. Second operand has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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 11:57:01,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:57:01,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 90 [2022-01-19 11:57:01,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:57:02,042 INFO L129 PetriNetUnfolder]: 9/126 cut-off events. [2022-01-19 11:57:02,042 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 11:57:02,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 126 events. 9/126 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 236 event pairs, 0 based on Foata normal form. 3/128 useless extension candidates. Maximal degree in co-relation 114. Up to 10 conditions per place. [2022-01-19 11:57:02,045 INFO L132 encePairwiseOnDemand]: 84/90 looper letters, 8 selfloop transitions, 3 changer transitions 9/91 dead transitions. [2022-01-19 11:57:02,045 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 91 transitions, 225 flow [2022-01-19 11:57:02,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 11:57:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 11:57:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 575 transitions. [2022-01-19 11:57:02,061 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9126984126984127 [2022-01-19 11:57:02,061 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 575 transitions. [2022-01-19 11:57:02,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 575 transitions. [2022-01-19 11:57:02,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:57:02,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 575 transitions. [2022-01-19 11:57:02,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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 11:57:02,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 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 11:57:02,074 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 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 11:57:02,075 INFO L186 Difference]: Start difference. First operand has 82 places, 79 transitions, 161 flow. Second operand 7 states and 575 transitions. [2022-01-19 11:57:02,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 91 transitions, 225 flow [2022-01-19 11:57:02,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 91 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 11:57:02,085 INFO L242 Difference]: Finished difference. Result has 92 places, 79 transitions, 179 flow [2022-01-19 11:57:02,086 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=179, PETRI_PLACES=92, PETRI_TRANSITIONS=79} [2022-01-19 11:57:02,089 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2022-01-19 11:57:02,089 INFO L470 AbstractCegarLoop]: Abstraction has has 92 places, 79 transitions, 179 flow [2022-01-19 11:57:02,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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 11:57:02,089 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:57:02,089 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:57:02,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 11:57:02,090 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 11:57:02,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:57:02,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1175468409, now seen corresponding path program 1 times [2022-01-19 11:57:02,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:57:02,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58040236] [2022-01-19 11:57:02,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:57:02,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:57:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:57:02,232 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 11:57:02,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:57:02,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58040236] [2022-01-19 11:57:02,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58040236] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:57:02,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:57:02,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 11:57:02,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244898115] [2022-01-19 11:57:02,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:57:02,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 11:57:02,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:57:02,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 11:57:02,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-19 11:57:02,235 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2022-01-19 11:57:02,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 79 transitions, 179 flow. Second operand has 8 states, 8 states have (on average 58.125) internal successors, (465), 8 states have internal predecessors, (465), 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 11:57:02,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:57:02,236 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2022-01-19 11:57:02,236 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:57:02,341 INFO L129 PetriNetUnfolder]: 26/161 cut-off events. [2022-01-19 11:57:02,341 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-01-19 11:57:02,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 161 events. 26/161 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 470 event pairs, 13 based on Foata normal form. 8/166 useless extension candidates. Maximal degree in co-relation 265. Up to 55 conditions per place. [2022-01-19 11:57:02,342 INFO L132 encePairwiseOnDemand]: 83/90 looper letters, 29 selfloop transitions, 7 changer transitions 0/82 dead transitions. [2022-01-19 11:57:02,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 82 transitions, 257 flow [2022-01-19 11:57:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 11:57:02,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 11:57:02,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 368 transitions. [2022-01-19 11:57:02,344 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6814814814814815 [2022-01-19 11:57:02,344 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 368 transitions. [2022-01-19 11:57:02,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 368 transitions. [2022-01-19 11:57:02,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:57:02,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 368 transitions. [2022-01-19 11:57:02,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 61.333333333333336) internal successors, (368), 6 states have internal predecessors, (368), 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 11:57:02,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 90.0) internal successors, (630), 7 states have internal predecessors, (630), 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 11:57:02,347 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 90.0) internal successors, (630), 7 states have internal predecessors, (630), 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 11:57:02,347 INFO L186 Difference]: Start difference. First operand has 92 places, 79 transitions, 179 flow. Second operand 6 states and 368 transitions. [2022-01-19 11:57:02,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 82 transitions, 257 flow [2022-01-19 11:57:02,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 82 transitions, 243 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-01-19 11:57:02,355 INFO L242 Difference]: Finished difference. Result has 87 places, 79 transitions, 179 flow [2022-01-19 11:57:02,356 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=179, PETRI_PLACES=87, PETRI_TRANSITIONS=79} [2022-01-19 11:57:02,356 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2022-01-19 11:57:02,356 INFO L470 AbstractCegarLoop]: Abstraction has has 87 places, 79 transitions, 179 flow [2022-01-19 11:57:02,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 58.125) internal successors, (465), 8 states have internal predecessors, (465), 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 11:57:02,357 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:57:02,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:57:02,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 11:57:02,357 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 11:57:02,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:57:02,358 INFO L85 PathProgramCache]: Analyzing trace with hash 965966025, now seen corresponding path program 2 times [2022-01-19 11:57:02,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:57:02,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532622188] [2022-01-19 11:57:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:57:02,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:57:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:57:02,553 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 11:57:02,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:57:02,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532622188] [2022-01-19 11:57:02,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532622188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:57:02,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:57:02,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 11:57:02,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43074079] [2022-01-19 11:57:02,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:57:02,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 11:57:02,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:57:02,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 11:57:02,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-19 11:57:02,556 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2022-01-19 11:57:02,556 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 79 transitions, 179 flow. Second operand has 8 states, 8 states have (on average 58.125) internal successors, (465), 8 states have internal predecessors, (465), 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 11:57:02,556 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:57:02,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2022-01-19 11:57:02,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:57:02,665 INFO L129 PetriNetUnfolder]: 18/140 cut-off events. [2022-01-19 11:57:02,665 INFO L130 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-01-19 11:57:02,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 140 events. 18/140 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 360 event pairs, 6 based on Foata normal form. 6/143 useless extension candidates. Maximal degree in co-relation 169. Up to 32 conditions per place. [2022-01-19 11:57:02,667 INFO L132 encePairwiseOnDemand]: 81/90 looper letters, 21 selfloop transitions, 6 changer transitions 18/84 dead transitions. [2022-01-19 11:57:02,667 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 84 transitions, 269 flow [2022-01-19 11:57:02,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 11:57:02,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 11:57:02,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 371 transitions. [2022-01-19 11:57:02,669 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.687037037037037 [2022-01-19 11:57:02,669 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 371 transitions. [2022-01-19 11:57:02,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 371 transitions. [2022-01-19 11:57:02,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:57:02,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 371 transitions. [2022-01-19 11:57:02,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 61.833333333333336) internal successors, (371), 6 states have internal predecessors, (371), 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 11:57:02,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 90.0) internal successors, (630), 7 states have internal predecessors, (630), 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 11:57:02,673 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 90.0) internal successors, (630), 7 states have internal predecessors, (630), 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 11:57:02,673 INFO L186 Difference]: Start difference. First operand has 87 places, 79 transitions, 179 flow. Second operand 6 states and 371 transitions. [2022-01-19 11:57:02,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 84 transitions, 269 flow [2022-01-19 11:57:02,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 84 transitions, 258 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 11:57:02,676 INFO L242 Difference]: Finished difference. Result has 88 places, 65 transitions, 150 flow [2022-01-19 11:57:02,677 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=150, PETRI_PLACES=88, PETRI_TRANSITIONS=65} [2022-01-19 11:57:02,678 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 6 predicate places. [2022-01-19 11:57:02,678 INFO L470 AbstractCegarLoop]: Abstraction has has 88 places, 65 transitions, 150 flow [2022-01-19 11:57:02,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 58.125) internal successors, (465), 8 states have internal predecessors, (465), 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 11:57:02,679 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:57:02,679 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, 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 11:57:02,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 11:57:02,679 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 11:57:02,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:57:02,680 INFO L85 PathProgramCache]: Analyzing trace with hash 103451083, now seen corresponding path program 1 times [2022-01-19 11:57:02,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:57:02,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305232612] [2022-01-19 11:57:02,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:57:02,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:57:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:57:02,780 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 11:57:02,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:57:02,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305232612] [2022-01-19 11:57:02,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305232612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:57:02,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:57:02,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:57:02,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294744616] [2022-01-19 11:57:02,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:57:02,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:57:02,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:57:02,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:57:02,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:57:02,791 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2022-01-19 11:57:02,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 65 transitions, 150 flow. Second operand has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 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 11:57:02,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:57:02,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2022-01-19 11:57:02,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:57:02,840 INFO L129 PetriNetUnfolder]: 3/82 cut-off events. [2022-01-19 11:57:02,841 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-01-19 11:57:02,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 82 events. 3/82 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 1 based on Foata normal form. 4/85 useless extension candidates. Maximal degree in co-relation 67. Up to 13 conditions per place. [2022-01-19 11:57:02,842 INFO L132 encePairwiseOnDemand]: 84/90 looper letters, 14 selfloop transitions, 6 changer transitions 1/66 dead transitions. [2022-01-19 11:57:02,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 66 transitions, 195 flow [2022-01-19 11:57:02,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 11:57:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 11:57:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 328 transitions. [2022-01-19 11:57:02,843 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7288888888888889 [2022-01-19 11:57:02,844 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 328 transitions. [2022-01-19 11:57:02,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 328 transitions. [2022-01-19 11:57:02,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:57:02,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 328 transitions. [2022-01-19 11:57:02,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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 11:57:02,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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 11:57:02,846 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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 11:57:02,846 INFO L186 Difference]: Start difference. First operand has 88 places, 65 transitions, 150 flow. Second operand 5 states and 328 transitions. [2022-01-19 11:57:02,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 66 transitions, 195 flow [2022-01-19 11:57:02,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 66 transitions, 184 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-01-19 11:57:02,849 INFO L242 Difference]: Finished difference. Result has 74 places, 65 transitions, 152 flow [2022-01-19 11:57:02,849 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=74, PETRI_TRANSITIONS=65} [2022-01-19 11:57:02,850 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2022-01-19 11:57:02,850 INFO L470 AbstractCegarLoop]: Abstraction has has 74 places, 65 transitions, 152 flow [2022-01-19 11:57:02,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 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 11:57:02,850 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:57:02,851 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, 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 11:57:02,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 11:57:02,851 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 11:57:02,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:57:02,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1451595179, now seen corresponding path program 2 times [2022-01-19 11:57:02,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:57:02,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660505234] [2022-01-19 11:57:02,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:57:02,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:57:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:57:02,961 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 11:57:02,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:57:02,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660505234] [2022-01-19 11:57:02,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660505234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:57:02,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:57:02,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:57:02,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143530141] [2022-01-19 11:57:02,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:57:02,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:57:02,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:57:02,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:57:02,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:57:02,965 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2022-01-19 11:57:02,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 65 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 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 11:57:02,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:57:02,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2022-01-19 11:57:02,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:57:03,012 INFO L129 PetriNetUnfolder]: 3/71 cut-off events. [2022-01-19 11:57:03,012 INFO L130 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-01-19 11:57:03,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 71 events. 3/71 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 1 based on Foata normal form. 2/72 useless extension candidates. Maximal degree in co-relation 55. Up to 11 conditions per place. [2022-01-19 11:57:03,012 INFO L132 encePairwiseOnDemand]: 85/90 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2022-01-19 11:57:03,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 61 transitions, 184 flow [2022-01-19 11:57:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 11:57:03,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 11:57:03,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 327 transitions. [2022-01-19 11:57:03,015 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7266666666666667 [2022-01-19 11:57:03,015 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 327 transitions. [2022-01-19 11:57:03,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 327 transitions. [2022-01-19 11:57:03,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:57:03,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 327 transitions. [2022-01-19 11:57:03,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 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 11:57:03,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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 11:57:03,017 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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 11:57:03,017 INFO L186 Difference]: Start difference. First operand has 74 places, 65 transitions, 152 flow. Second operand 5 states and 327 transitions. [2022-01-19 11:57:03,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 61 transitions, 184 flow [2022-01-19 11:57:03,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 61 transitions, 175 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 11:57:03,019 INFO L242 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2022-01-19 11:57:03,019 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2022-01-19 11:57:03,020 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, -13 predicate places. [2022-01-19 11:57:03,021 INFO L470 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2022-01-19 11:57:03,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 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 11:57:03,023 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-19 11:57:03,023 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-19 11:57:03,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 11:57:03,026 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2022-01-19 11:57:03,028 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 11:57:03,029 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 11:57:03,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 11:57:03 BasicIcfg [2022-01-19 11:57:03,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 11:57:03,035 INFO L158 Benchmark]: Toolchain (without parser) took 2265.74ms. Allocated memory is still 392.2MB. Free memory was 337.3MB in the beginning and 179.2MB in the end (delta: 158.0MB). Peak memory consumption was 157.9MB. Max. memory is 16.0GB. [2022-01-19 11:57:03,036 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 392.2MB. Free memory is still 355.0MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 11:57:03,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.56ms. Allocated memory is still 392.2MB. Free memory was 337.1MB in the beginning and 355.4MB in the end (delta: -18.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.0GB. [2022-01-19 11:57:03,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.21ms. Allocated memory is still 392.2MB. Free memory was 355.4MB in the beginning and 353.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:57:03,036 INFO L158 Benchmark]: Boogie Preprocessor took 28.93ms. Allocated memory is still 392.2MB. Free memory was 353.3MB in the beginning and 352.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 11:57:03,039 INFO L158 Benchmark]: RCFGBuilder took 377.40ms. Allocated memory is still 392.2MB. Free memory was 352.3MB in the beginning and 338.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-19 11:57:03,039 INFO L158 Benchmark]: TraceAbstraction took 1477.65ms. Allocated memory is still 392.2MB. Free memory was 338.6MB in the beginning and 179.2MB in the end (delta: 159.4MB). Peak memory consumption was 159.4MB. Max. memory is 16.0GB. [2022-01-19 11:57:03,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 392.2MB. Free memory is still 355.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 320.56ms. Allocated memory is still 392.2MB. Free memory was 337.1MB in the beginning and 355.4MB in the end (delta: -18.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.21ms. Allocated memory is still 392.2MB. Free memory was 355.4MB in the beginning and 353.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.93ms. Allocated memory is still 392.2MB. Free memory was 353.3MB in the beginning and 352.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 377.40ms. Allocated memory is still 392.2MB. Free memory was 352.3MB in the beginning and 338.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 1477.65ms. Allocated memory is still 392.2MB. Free memory was 338.6MB in the beginning and 179.2MB in the end (delta: 159.4MB). Peak memory consumption was 159.4MB. 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 108 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 21 mSDtfsCounter, 309 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=1, InterpolantAutomatonStates: 29, 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, 0.6s InterpolantComputationTime, 314 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 1388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 11:57:03,065 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...